The future of urban transport policy lies not in expansion but in the intelligent use of existing traffic areas. The objective of ensuring mobility for people travelling to work and shopping and during leisure time requires urban traffic management based on modern information technology. Ernst Joos, Deputy Director of Zurich Transport. ‘Lessons in Transportation Planning from Zurich. Economy and Ecology are not contradictions.’ (Lecture, Dublin Transportation Office, Embassy of Switzerland, Dublin, June 10 1999)
Over the past twenty-five years, those responsible for managing Dublin have failed to draw any lessons from Zurich, one of the most desirable cities in the world in which to live. If they had, they would not now be seriously proposing to add yet another railway system to the two already existing. The proposed MetroLink is a completely different system to the existing LUAS (light rail) and DART/Commuter services (heavy rail). LUAS trams will be unable to run on the MetroLink rail, and vice versa (see About, Frequently Asked Questions, MetroLink – The Basics, par 6).
Resources committed to MetroLink (€500m to date) have crowded out the development of other, less costly, options which would, by now, have made it easier to move around our capital city region.
Place-making – an approach to urban planning and design that focuses on the people who use a space, rather than just the physical structures or buildings. The idea is to create places that are not just functional, but also beautiful and meaningful to the people who live, work, and play there. This has long been overlooked by the governing networks of politicians, senior public servants, policy makers, as well as the relevant planners, engineers, economists, architects, property developers and builders. Focusing on competitiveness alone will not make our capital city a pleasant place to live, work and linger.
For some time, there has been a deliberate policy of removing through traffic from a small part of Dublin city centre. MetroLink is the most recent iteration by insiders/incumbents who did not follow through on the 1998 government decision to build a mainly on-street light rail system for Dublin.
As proposed, MetroLink (costing anywhere from €12bn to €23bn) again fails to ensure that place-making objectives are applied consistently, and with equal force, throughout our capital city.
Ballymun provides an excellent example of this failure. When the 1960s-built-suburb was regenerated during the 1990s, the main street of this residential area became a six-lane highway for through traffic. Such traffic is a major form of community severance.
The proposed MetroLink will be in a tunnel, under the main street which will still have through traffic. National and local politicians, policymakers and interest groups support this. Yet the same people are actively restricting such through traffic from the city centre.
The Government decision to extend LUAS to Finglas is an opportunity to reset the go-stop-go practices of the past twenty-five years. Our public authorities can use this to keep the experienced staff and supply chains needed to build LUAS networks serving other parts of Dublin (e.g. Drumcondra, Santry, Ballymun, Beaumont, Coolock, Edenmore, Lucan, Clondalkin, Ballyfermot, the south city centre, Harold’s Cross, Terenure, Rathfarnham, Dundrum). People in Cork and Galway would also benefit from this focus as they too adopt LUAS-type services.
Sustaining urban areas requires the application of mutually reinforcing measures consistently over decades. Instead of being focused on the creation and maintenance of places which raise the quality of life, development in Dublin has been reduced to a very limited form of building control on a project-by-project basis.
We can enhance our cities by adopting stable policies and continuous investment. But we cannot rely on what emerges from different programmes for government, each drawn up for a single electoral cycle of no more than five years. Rapid decision-making on arbitrary projects has not worked to make housing affordable, or available, in the Dublin area. Nor will similar incoherence deliver an attractive public transport network.
On April 8, 2025 the Government approved the Revised National Planning Framework. This recognises the issue of Sustainable Mobility (National Strategic Outcome 5 p.161-2). Dublin and other Irish cities and major urban areas are heavily dependent on road and private, mainly car-based, transport with the result that there is more and more congestion.
The National Development Plan makes provision for transformational investment in public transport and sustainable mobility solutions in the main urban centres that will progressively put in place a more sustainable alternative. For example, major public transport infrastructure projects identified in the Transport Strategy for the Greater Dublin Area to 2042 – such as the MetroLink and DART+ as well as the Luas and Bus Connects investment programmes – will keep our capital and other key urban areas competitive.
In the Greater Dublin Area Transport Strategy 2022 –2042, the National Transport Authority (NTA) continues to spin the idea that LUAS is networked, when our experience is otherwise (‘Greater Dublin Area Transport Strategy 2022-2042’ asserts that ‘in conjunction with Transport Infrastructure Ireland (TII), in December 2017 we opened Luas Cross City, linking the Red and Green lines and providing an interchange between commuter rail and Luas at Broombridge.’ p.11).
What is worse, NTA persists with this bluster despite their own strategy showing clearly that they propose more lines which are not interlinked.
Figure 1. Dublin Light Rail (now LUAS) as proposed.
In 1997, Dublin’s light rail was proposed as one interconnected system (see Figure 1). However, the Dublin Chamber of Commerce opposed on street LUAS. In May 1998, the Fianna Fáil-Progressive Democrat government decided to develop Dublin’s light rail system (now LUAS) as follows
Phase 1 – Line A from Tallaght to Middle Abbey Street;
Phase 2- Line B from Sandyford to Sr. Stephen’s Green;
Phase 3 – an eastward extension of Line A from Middle Abbey Street to Connolly and perhaps then on to the Docklands;
Phase 4 – an underground extension of Line A to Broadstone then continuing with surface running to Finglas and the Dublin Airport.
This bizarre decision meant that another depot (for maintenance etc.) had to be built for Line B (now the Green Line), as the Red Cow depot (now on the Red line) could not service trams, although it was designed and built for three LUAS lines!
At the time, I estimated that the cost of connecting the two lines was about the same as the cost of acquiring a site and building another depot. The only remaining green space next to the Sandyford Business district became the depot. Recently Dun Laoghaire-Rathdown County Council re-zoned an existing brownfield site to create public open spaces. This was a belated response to the growth of offices and residences in that area.
Nothing was done to build the Phase 4 short tunnel under the city centre, as decided in 1998. Shortly afterwards, in 2001, the Government had an opportunity to correct its basic error when ‘A Platform for Change. Final Report An integrated transportation strategy for the Greater Dublin Area 2000 to 2016’ was published.
Figure 2. LUAS-on-street light rail.
This proposed an on-street LUAS network (see Figure 2) as one of a set of mutually reinforcing measures designed to make it easier to move around the Greater Dublin Area. Note that this report proposed, inter alia:
A LUAS line through Drumcondra to Dublin Airport with a spur line to Howth Junction, which has DART and commuter rail services;
A Docklands loop across a then proposed bridge at Macken Street– now the Samuel Beckett Bridge.
The LUAS Green line was to be upgraded to Metro.
Figure 3. METRO segregated light rail.
The Metro then proposed is radically different to MetroLink. The decision to extend the Green LUAS line through Broadstone to Broombridge on-street foreclosed the possibility of having a short tunnel between Ranelagh and Broadstone, as the Government decided in 1998.
To see what a mutually-reinforcing set of rail-based options for the Dublin looks like see Figure 4. Bus services were supposed to be designed to complement this.
Figure 4 Integrated rail transport for Greater Dublin Area
Back to the Future
It is time for a reset for MetroLink, which it is projected will cost up to a staggering €23 billion, which is two or three times the original estimate, especially given the economic uncertainty that has arisen since Donald Trump became President in January 2025.
The application to extend the Green Line LUAS to Finglas is an opportunity to extend that project to Dublin Airport, as Cathal Daughton pointed out in a recent article. While welcome, the extension of the LUAS Green Line from Broombridge in Cabra to Charlestown in Finglas should have continued the additional 3km to Dublin Airport to create a city centre-airport rail link while the Metro is being built.
TII estimate that the 4km LUAS Finglas project will cost between €420 and €720 million. Getting to the Airport could be done by extending LUAS through Ballymun to the old airport road at Santry (see Figures 14 and 15). That route would avoid the cost of going over or under the M50, in addition to serving more residential and business areas.
Is journey time between Dublin City Centre and the Airport an issue?
NTA published a number of Dublin Airport passenger surveys over the past twenty-five years . These reports show that most passengers: take less than one hour to get to the Airport (see Figure 5); are travelling for holiday/leisure/visiting family friends (see Figure 6); and are not going to Dublin City Centre (see Figure 7).
Figure 5. Journey Times to Dublin Airport 2001-2022.Figure 6. Trip purpose Dublin Airport passengers 1998 – 2022.
The NTA reports show the purpose of passenger travel has scarcely changed over the past twenty-five years. This suggests that most passengers are not pressed for time.
As regards the landside origin/destination of these passengers, NTA collected the data in surveys done in 2001, 2011, 2016 and 2022. The published reports do not, however, contain summary data for the years 2016 and 2022. The reports of the 2016 and 2022 surveys do not contain any explanation for this omission. The published data from the 2001 and 2011 reports show that less than one-quarter were going to/coming from Dublin City Centre (See Figure 7). Any passengers that need faster journey times between Dublin Airport and the city centre have the options of getting taxis which can go through the Port Tunnel and use bus lanes.
Why has the National Transport Authority (NTA) stopped publishing data on the landside origins/destinations of Dublin Airport passengers? Without such data, how can trends be assessed as a basis for investment?
This does not correspond with what Robert Watt (then Secretary General of the Department of Public Expenditure and Reform) wrote in 2017. Among the outputs in 2014 from these economists is the Comprehensive Expenditure Report 2015-2017, a review of agri-taxation measures, and an evidence-based Strategic Framework for Investment in Land Transport. This work is high-quality economic analysis undertaken by Irish Civil Servants [my emphasis].
Arrival times for passengers departing Dublin Airport
TII claim that MetroLink will result in morning peak journey time savings of fourteen minutes from St. Stephen’s Green to Dublin Airport. During weekdays, the morning peak (mainly into Dublin) is from 07.00-10.00 with an evening peak from 16.00–19.00 (mainly out of Dublin).
NTA reported on the departure times of departing passengers. The reports for 2001 and 2011 did not contain this data aligned with peak hour travel times, see Figure 8. However, the 2016 and 2022 reports did, see Figure 9.
Figure 8. Time of Arrival at Dublin Airport for Departing Passengers 2001, 2011.
The 2016 and 2022 results offers insight on the impact of airport travel at peak commuting times. Note that the fourteen minute time saving is on a journey that is in the opposite direction to the normal city-centre inbound traffic we hear about in traffic bulletins covering the 07.00-10.00 morning peak.
For 2022 (see Figure 9), over 70% of departing passengers travelled to Dublin Airport outside the peak commuting times of 07.00-10.00 and 16.00-19.00. This is up from the 60% reported on for 2016. This lack of fit between peak commuting times and the times when most people travel between the Airport and the city centre is not a robust basis for offering a cost-benefit of this MetroLink project.
Figure 9 Time of Arrival at Dublin Airport for Departing Passengers 2016, 2022
Commuting in the Dublin area
Census 2016 maps (Figures 10 and 11) suggest that most commuting within the Greater Dublin Area within the M50; along corridors; to the North West (Blanchardstown N3/M3 corridor); the west (north/south of the N4/M4 Lucan Clondalkin area); the south-west (N7 Naas Road, N82 Tallaght).
Neither Dublin Airport nor Swords stand out as places which call for exceptional investment to enhance public transport for people who live and/or work in those locations.
The reports of the latest Census do not reproduce these maps. The Central Statistics Office (CSO) did not give any reason for dropping these maps from the Census 2022 report on commuting.
Figure 10. Feeder Towns into each Dublin Census 2016.Figure 11. Catchment area of major workplace locations.
North Dublin Compared to other parts of Dublin
More people live in the north part of Dublin City than in any other part the Dublin area (see Figures 12 and 13). This has been the case for the past thirty years.
Why is this area getting less attention for enhancing public transport than the route to Swords?
Figure 12 Dublin City North population compared to other areas in Dublin 1991-2022.Figure 13. Dublin City North population compared to Fingal 1991-2022.
Comparing the North part of Dublin City to Cork is revealing. Earlier this month, the NTA began public consultation on the Emerging Preferred Route (EPR) for an eighteen kilometre twenty-station LUAS line for Cork. This is to support the objective of Cork becoming the fastest-growing city in Ireland over the next twenty years, with a targeted growth in population of 50 to 60 percent.
In 2022, Cork City had a population of just 224,000. Growing by 50% (to 336,000) would mean that Cork’s population would still be less than the 346,000 people now living in the north part of Dublin city in 2022.
A LUAS loop for Dublin North City
In 2015, I commissioned two maps from the All-Island Regional Observatory (AIRO). These showed the then existing and proposed rail-based commuter services superimposed on, firstly Dublin’s Economic Core were measured as having more than seven hundred jobs per square kilometre; and secondly population density in the Dublin area, based on the then most recent Census 2011.
In March 2024, I recommissioned an update based on the 2022 Census and the proposed MetroLink. On these, I superimposed a proposal for a North City LUAS Loop (see Figures 14 and 15)
This North City LUAS loop would better serve the over one and a half million people in the Greater Dublin Area than the proposed MetroLink, as it recognises that most commuting takes place within the M50.
This forms a network with the existing LUAS system, unlike the proposed MetroLink. It also serves parts of Dublin in which most people live. Furthermore, it would cost about €7 billion, i.e. less than a third of the estimated €23 billion MetroLink is projected to cost, and extends the proposed Finglas LUAS to sustain a programme of experience and supply chains required for LUAS in other urban areas, such as Cork and Galway.
Ever since the 1998 decision to build LUAS, siloed thinking has prevailed. The public authorities did not follow through on the decisions taken then. MetroLink is just the latest example of that kind of ‘ad-hocery.’
They have misdirected investment, as is clear by the failure to create a single integrated LUAS network as the key element of a series of mutually -reinforcing measures to enhance our capital city region.
Figure 14. LUAS Loop North Dublin’s Core Economic Area Census 2022.Figure 15. LUAS Loop North Dublin Population Density Census 2022.
Firstly, this proposed North City LUAS loop serves the northern part of Dublin’s Core Economic Area and the populated areas comprehensively, taking in Phibsboro’, Cabra, Finglas; Poppintree, Charlestown, Ballymun, Northwood; Santry, Dublin Airport, Swords, Drumcondra; Coolock, Beaumont, Kilmore, Edenmore, Donaghmede;
Secondly it is integrated with LUAS and could link with a Docklands (North and South) LUAS loop using the Samuel Becket Bridge which is designed to carry LUAS.
Thirdly, it offers two rail-based links between the Central Business District and Dublin Airport in addition to transport services which use the Port Tunnel, i.e. a direct link on LUAS via either Drumcondra or LUAS CrossCity; an indirect using DART/Commuter services at Howth Junction. There are also links with heavy rail services on the Maynooth/Mullingar/Longford line at both Drumcondra and Broombridge.
It would also serve important trip attractors/generators including Mater/Cappagh/Beaumont/UPMC medical centres, Croke and Tolka Parks, all the DCU campuses, the Marino Institute of Education in addition to industrial areas at Coolock/Clonshaugh and Santry Finally it offers services to more areas experiencing social deprivation than the proposed MetroLink route.
It would also serve important landmarks including Mater/Cappagh/Beaumont hospitals, Croke and Tolka Parks, all of the DCU campuses, the Marino Institute of Education. Finally it offers services to more areas experiencing social deprivation than the proposed MetroLink route.
As the world of infrastructure evolves, programmatic thinking is reshaping how organisations across the world approach planning and delivery. This shift to a cohesive, programme-based perspective is also gaining traction across the island of Ireland It requires not only consistent, multi-annual funding but also a cultural change within individual delivery organisations in how projects are planned, prioritised, and executed.
As proposed, MetroLink is the polar opposite of this kind of thinking. It reflects the politics of grand gestures more than quiet competence applied consistently over many election cycles.
Ten years ago, NTA summarised the case for light rail in Dublin see Figure 16. Despite the population growth, this still makes sense.
Editor’s Note: Having previously published Vaccination: A Matter of Trust with Caveats, we now anticipate objections from some readers to an article that may provoke vaccine hesitancy, at a point when rapid rollout to the entire adult population is widely touted as the only path out of interminable lockdowns. The author of this article, Dr. Marcus de Brun, however, is a medical doctor, and prior to his resignation last year– in protest against the government’s handling of the pandemic – a member of the Irish Medical Council. He also holds a first class degree in microbiology from TCD. Thus, we believe it is incumbent on Cassandra Voices as ‘a home for independent voices to inspire new thinking’ to provide this platform for him to articulate fully a public stance that he would not vaccinate a healthy person with any of the four vaccines currently on offer in Ireland. All the more so in a period of crisis, we maintain it is vital to give space to informed arguments that go against the grain. We invite comment and/or rebuttal, and ask if you appreciate this article that you offer a contribution to this publication, either through signing up with us on Patreon or through a single donation Buy Me A Coffee.
Having recently stated publicly that I would ‘not administer a genetic-vaccine to a healthy animal, never mind a ‘healthy human being,’ I have been asked by friends (and foes) to clarify this statement, and will attempt to do so here.
Speaking as a qualified Microbiologist, l would NOT administer an mRNA vaccine to a healthy animal, never mind a healthy human being.
At present, vaccines produced by four companies (Pfizer, Moderna, Astra Zeneca and Johnson & Johnson) are available on the European market. All four are ‘genetic vaccines’ in that they are composed of synthetic DNA or RNA that is contained within a membrane or shell. In construction and appearance the vaccine is very similar to the SARS-CoV-2 virus responsible for the coronavirus disease known as Covid-19. The vaccine gains entry to human cells by a process that is almost identical to the manner by which a virus generally gains access to host cells. This process is called ‘transfection’.
Each of these vaccines work by introducing either DNA or RNA into host cells. The genetic material then instructs host cells to make a piece of the coronavirus (the spike protein) that is then released into the blood stream or tissues. There, the spike protein will trigger an immune response. Following this immune response, the vaccinated individual will retain some immunity; they will have antibodies and white cells that can now recognise Covid-19 and attack it before it has a chance to cause a serious infection.
The AstraZeneca and Johnson & Johnson vaccines are DNA vaccines,[i] which transfect DNA into the Nucleus of host cells. The Pfizer and Moderna Vaccines are RNA vaccines, these transfect their RNA into the cytoplasm of host cells. The difference will be explained later; however, the initial process is the same: human cells take up synthetic viral genes, those genes then direct those cells to begin manufacturing the spike-protein of Covid-19. The cells will then release the nascent spike-protein into the bloodstream or tissues, where it will then function as a ‘traditional vaccine.’
In essence, the distinction between genetic-vaccines and ‘traditional vaccines’ is that the latter would involve a person being injected with killed or inactive virus or spike-protein, which would then cause our immune systems to mount a response. Each of these novel genetic-vaccines however, insert genetic material into human cells. These synthetic genes then ‘hijack’ those cells or ‘convert’ them to manufacture and release the spike-protein. With a genetic vaccine, pharma does not make the vaccine, our own cells are programmed to do the work instead, a process entirely different from that of a ‘traditional vaccine’.
Out with the Old…
For the first time in my medical career of some twenty years, I am presented with the apparent necessity of vaccinating young healthy people with experimental vaccines, against a disease for which they have little or no risk of suffering life-threatening,[ii] or even serious long-term[iii] illness. The vast majority of ‘vulnerable’ people to whom they might pass Covid-19 have already been either vaccinated or been exposed to the virus.[iv]
I have an article today in @statnews making the case that we need to start thinking more critically, and speaking more cautiously, about “Long COVID.” https://t.co/WCGxyxKe37
In Ireland according to our Central Statistics Office, during the past 12 months up to the end of January 2021; amongst the entire population of 1-24yr olds, there have been 55,565 PCR confirmed cases of Covid-19. Out of those cases, there has not been a single death recorded; from, by, or associated with Covid-19.[v] It has been reported that a single Covid-related death in this cohort (1-24yrs) did occur in February of this year. However, this has yet to appear in the figures published by the CSO.
Young nurses, medical staff, care workers, are being pressured into taking a vaccine they probably don’t need themselves, despite residents under their care having been almost all vaccinated already. Now Covid-19 genetic-vaccines are being tested upon children as young as six months old.[vi]
We are where we are today because of the GREATEST Political and Scientific Blunders in History!
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A Scarcity of Serious Questions? Or a Scarcity of Serious Media?
The justification for many, if not most, policies during this crisis has largely been based on ‘mortality data’. In contrast, Swedish authorities have enforced relatively few restrictions, nor made masks mandatory. In Ireland, the CSO indicate that 92% of all Covid-related deaths have occurred in those over 65 years of age.[vii]
In Sweden that cohort of their population is 3.17 times greater Ireland’s. Thus, if we roughly compare the Swedish mortality total (at the time of writing) of 13,262, to the Irish total of 4588, and if we then multiply the Irish mortality total by 3.17, we arrive at a figure of 14,544, which is significantly higher than the comparable Swedish total.
We are crudely, but reasonably, comparing ‘like with like’ to reveal glaring potential problems with our own relatively draconian Covid policies. When compared with Sweden, our own version of lockdown seems to have had no benefit in terms of preventing mortality. It might not be unreasonable to assert that our stricter policies may have contributed to a relatively higher mortality. Yet, perhaps the biggest question here is: why are there so few questions being posed in the media in respect of the efficacy of masks, lockdowns or vaccination policies?
On the rare occasion questions are raised in our national media, it as if an ‘anti-vaxxer’, ‘right-wing loon’, or political extremist is trying to gate crash what might otherwise be a rather sedate and respectable party.
Pro-Vaxxer
In the good old days before Covid, in Ireland, and around the world, we only vaccinated those who were vulnerable to, or at risk from a specific disease. We still vaccinate children against an array of illnesses that adults have not been, and are not routinely vaccinated against; Rotavirus and Meningitis B are but two obvious examples. Adults are equally susceptible to infection by either, but they are not as vulnerable to serious illness, and so are not vaccinated. Previously, we only ever vaccinated the vulnerable and those at risk; recently, however, that good science and common sense has been turned on its head.
It is suggested that we should vaccinate young healthy people who have little if anything to fear from Covid-19. A paediatric genetic-vaccine is expected to be available later this year. It is argued that even though children are generally not susceptible to serious disease, they should be vaccinated in order to protect the vulnerable and achieve ‘herd-immunity.’ In the meantime, the vulnerable have in large part already been either been vaccinated already, exposed or sadly passed away.
If getting the disease does not give immunity, how do you think that a vaccine that makes the same spike protein as the virus makes will give immunity?
If getting the disease does not give immunity, how do you think that a vaccine that makes the same spike protein as the virus makes will give immunity? https://t.co/UGlSeE8LhW
Between March and June, 2020, 96% of additional deaths related to COVID-19 in Europe occurred in patients aged older than 70 years[ix] We have clearly lost sight of whom we are trying to protect, and what we are trying to protect them from. Presently we have a national obsession with conformity, and an ostensible adherence to guidelines. Despite empirical truths, and substantial contrary evidence, we are being corralled into what increasingly appears to be a specific belief-system surrounding Covid-19, and its threat to the entire population.
Those who have read George Orwell’s Animal Farm (1945) will be familiar with the threats issued to the hapless animals: ‘Jones the farmer will return, and destroy all of your good work!’ In contemporary parlance, he will return with ‘Long Covid,’[x] and frightening ‘New Variants’ with him.
Politicians have applied policies that are in keeping with this notion of ‘universal severity’ in response to a virus where 86% of those infected did not have virus symptoms, such as cough, fever, and loss of taste or smell., according to a UK study from October.[xi] Many of our Covid policies arrive with the benefit of preserving established governments from demonstrations and assemblies calling for policy revisions and or enquiries.
My own calls for a public enquiry into nursing home deaths, or my pleas on behalf of common sense and natural science, are at best ignored by media. As are those of colleagues who feel and believe as I do, including Limerick GP Dr. Pat Morrissey, and Wexford GP Dr Gerry Waters, who was recently suspended by the Medical Council for refusing to adhere to and promote current public health guidance. Others who have openly spoken out against current policies have been subjected to investigation by the Medical Council, and ongoing vilification by many of our peers. Speaking out returns precious few short term dividends.
Throughout much of Europe since the outset of the crisis, governments, like our own, are presently controlled by proxy scientific-panels or unelected expert committees. Governments claim to be simply ‘following their scientists advice,’ whilst the scientists insist that they are merely informing the government and not directing government policy. In this apparently blameless political ‘no man’s land’, the stage is perfectly set for blameless political atrocities.
War of the Words: ‘Genetic vs ‘Traditional’
Many scientists and physicians prefer to describe most Covid-19 vaccines as ‘gene therapy’. It is a phrase that no doubt serves as much to antagonise proponents, as it does to inform them. However, it is as good a place as anywhere to start.
Genetic vaccines are certainly not ‘traditional’ vaccines. The licence for their use against Covid-19 throughout Europe was granted under emergency legislation that permits manufacturers to skip phase 4 safety trials that would have otherwise delayed their distribution. Advocates insist that skipping this final phase was absolutely necessary to resolve the current crisis.
There is much to this argument, and we will not dive into it here. However, one point should be made. There are at least two off-patent (cheap and safe) drugs, Hydroxychloroquine and Ivermectin, that may be effective in treating Covid-19. These drugs are not, however, licensed for use in treating Covid in many Western countries, (particularly the wealthier ones who can afford the novel vaccines).
If either, or both, drugs had been licensed, this might have proved an obstacle to the granting of emergency use licences for Covid-19 vaccines. The reason for this is that grounds for emergency licensing of genetic-vaccines are substantially reinforced, as long as there are no other pharmacological treatments available at the time.
Edward Jenner (1749-1823)
A Traditional ‘Vaccine’
In China the practice of inoculation against diseases such as smallpox was established as far back as 200 BC.[xii] It is likely that traditional medicine, tribesmen and ancient civilisations used, or at least inadvertently ‘knew’ something of the benefits of limited exposure to a disease, in order to establish some degree of immunity.
Our own modern era of the ‘traditional’ vaccine begins when Edward Jenner (1749-1823) noticed that milkmaids appeared to be relatively immune to smallpox, a viral illness that was, in Jenner’s day, responsible for widespread suffering and death.
Jenner observed that something was being transmitted from the cows to the milkmaids, effectively protecting them against smallpox. Cows contract cowpox. It’s not the same disease as smallpox, but as the respective viruses are so similar, whenever the hands of a milkmaid came into contact with a blister or pox on the udder of a cow infected with cow-pox; the milkmaid would be exposed to this very similar virus.
In these instances the cowpox virus or ‘pieces’ of it, would enter the milkmaid’s blood stream through a cut or minor abrasion on her hands. The virus would be identified by her immune system as a ‘pathogen’ or disease-causing agent. White cells would attack the cowpox virus, causing it to break apart. Those same white cells would manufacture antibodies; little Y-shaped proteins that will stick to surface-proteins on the virus, and cause it to be directly destroyed, or recognised by other white cells that will mobilise to destroy it.
All of this complex immunology would of course be occurring within the milkmaid’s blood, whilst she happily milked her cows. She might notice a slight blister, a little pus, or minor swelling around one of the abrasions on her overworked hands. The slight redness might be ignored, and would inevitably fade away. However this localised reaction would have heralded exposure to cowpox. The cowpox antibodies would then persist in her blood, remaining attached to the surface of many of her circulating white blood cells; protecting her or “vaccinating” her against small-pox.
If the milkmaid should later come into contact with smallpox, those newly formed cowpox antibodies would be ready to mount an early and more efficient immune response. Her antibodies to the cowpox virus could attach to the smallpox virus, recruit other white cells – killer t-cells etc – onto the scene, and mount a pre-emptive response. This would be fast enough to eradicate the smallpox infection before it had an opportunity to spread and cause severe illness or death. It was Jenner’s genius that ultimately brought this reality to light.
Jenner collected some of the pus that oozed from the udders of cows infected with cowpox. He swirled it about in a drop of water, placed it in a glass vial and then offered it to the world as the prevention for small-pox. Half a century later Louis Pasteur coined the phrase ‘vaccination’ after vacca, the Latin for cow. The paradigm in respect of human medicine and public health had shifted forever.
Louis Pasteur.
Perhaps the real hero of the vaccination story was an eight-year-old boy by the name of James Phipps, the son of Jenner’s gardener. On May 14th 1796, Jenner made a small incision into James’s arm, and rubbed in a drop of his magical ‘pus-paste’, making little James the first to be given a vaccine in the modern sense.
Thankfully, little James proved immune to the various small-pox ‘exposures’ and challenges that Jenner then came up with. At the time small-pox was responsible for almost 10% of annual deaths in England. Jenner sent his results in a paper to the Royal Society for publication, but his paper was ignored.
Having had the audacity to suggest pus from an infected cow’s udder, as a cure for smallpox, Jenner was at first dismissed as an eccentric by his peers. Yet, rather than disappearing into obscurity, he persisted. He vaccinated a further twenty-three people, and having seen little James survive, he even included his own eleven-month old son Robert, in this first ever vaccine trial.
At that stage the medical establishment found it impossible to ignore his findings, which soon attracted widespread interest amongst the medical fraternity. However, it was not until 1840, some forty-four-years after his first attempt to publish his results, that the British Government began offering Jenner’s vaccination, free of charge, to the general public.
The same but different
Since Jenner’s day, ‘traditional vaccines’ have functioned in precisely the same way. Pharmaceutical companies take a virus or bacterium, they break it up, kill it, or leave it intact but render it weaker or ineffective ‘the same but different.’ They then take the bug (or pieces of the bug), swish them around in a little drop of water, add in a few elements that act as preservatives and immune-stimulants; then we doctors inject those pieces into people, thereby preventing many from succumbing to various infective diseases. The vaccination exposes us to a bug or pieces of a bug causing our immune system to generate antibodies and white blood cells that will persist in our circulation and be ready to launch a pre-emptive strike against the bug or a similar bug if it is encountered again: we have, in essence, become immune.
So what is different about genetic-vaccines? Well here’s where the story becomes a little nuanced. Let’s try to put it in terms we might relate to.
To begin with we must remind ourselves that: all living things are composed of cells, which is perhaps the most basic tenet of biology.
Image of a recreated 1918 influenza virus.
Viruses are not considered ‘living things’, because they are not ‘cells’ and neither are they made up of cells. They are formally referred to as ‘obligate intracellular parasites.’ They only become ‘alive;’ and can only replicate, after entering host cells, at which point they replicate or multiply within host cells. Once inside a cell the virus hijacks the cell’s own processes for making things that the cell needs for itself. The infected cell then becomes a virus factory, it swells with new virus particles, until it bursts, dies, and releases its payload of new virions into the bloodstream, or fluid outside of the cell membrane.
It is only when a virus is outside the cell, within the blood stream or tissues, that it might be recognised by white cells or antibodies, and become the subject of an immune response. When a virus is inside one of our cells, there are some discrete ways this cell can let other cells know that it has become infected; there are means by which the immune system detects that one of our own cells has a virus inside it. However, these are comparatively slow, indefinite and uncertain processes and will not be discussed here. The major and most important way the immune system clears viruses is by getting at them before they get inside our cells.
Once a virus is inside a cell, for the most part, it is hidden from the immune system. This point will be crucial to understanding the distinction between a genetic vaccine, and a traditional vaccine.
All Cells Look a Little, or a Lot, Like a Fried Egg:
Under a microscope, all cells appear a little like fried eggs. Almost all of them have the same basic plan, the yellow yolk being the nucleus; the white of the egg, the ‘cytoplasm;’ and the outer margin of the fried egg (the crispy brown edge) being the ‘cell membrane’ or wall surrounding the cell. To learn the basics of how genetic vaccines work, we need only refer to this analogy, but we must understand our ‘egg’ a little better before we put the toast on.
The yellow yolk, or nucleus, contains all of our DNA. To understand what DNA looks like, imagine your fly, not the one buzzing at the window, but the zip on your trousers. It is composed of two sides or strands that are linked together when your zipper is up, and separated when your zipper is down.
DNA is like an extremely long length of closed zip. Imagine this super long ‘zip’ coiled into individual space-saving packages, like neat balls of wool. Each of these little packages is called a chromosome and (with the exception of sperm cells and egg cells) the nucleus of each of our cells contains forty-six of these little balls of wool; twenty-three from mum, and twenty-three from dad.
All forty-six are packed into the nucleus, the yellow yolk of our analogous egg. When we, or one of our cells, needs something; a protein, a hormone, a replacement part etc., the information to make what the cell needs (the recipe for all of life’s necessities) is coded for in that length of closed zip, our DNA.
Each of the ‘teeth’ along the length of the zip strands, represent a single letter of the genetic code. An entire message may contain many letters, or teeth, along a specific length or piece of the zip. The lengths of zip that contain messages (or recipes) are called our ‘genes.’
The ‘message’ within a gene is like a recipe in a cookbook. It contains a coded instruction for how to make the protein, enzyme etc., or whatever it is that the cell wants or needs. The DNA code is in the nucleus, and the basic ingredients are located in the cytoplasm, and it is in the cytoplasm (the egg-white) where the item required is assembled and manufactured. The raw materials for manufacture get into the cytoplasm, when they are absorbed across the cell membrane (the crispy brown bit at the edge of our fried egg). These raw materials are the amino-acids, sugars and vitamins etc., that we receive in our diet.
To kick off the process, when a cell needs to make something, a signal is sent from the white of the egg (the cytoplasm) into the nucleus. That signal makes its way to the ball of wool or chromosome that contains the particular recipe, or code for the ingredients that will make up whatever is needed by the cell. When the signal reaches the chromosome containing the particular recipe or gene, the ball of wool is loosened slightly, and a relatively small length of closed zip (or DNA containing that recipe), is unzipped. One side of the opened zip is then copied into a piece of mRNA.
That copy of one side of the unzipped zip is called messenger RNA. In most textbooks it (the mRNA) looks exactly as I have described it: a single side of a zip. This messenger RNA then exits through pores in the nucleus. It enters the white of the egg, where this mRNA ‘recipe’ is then read or translated, and whatever it is the cell needs can now be manufactured within the cytoplasm or the white of the egg.
The Ribosome
When the strand of messenger RNA leaves the nucleus and enters the cytoplasm it is immediately found by a fascinating little cytoplasmic protein called a ‘ribosome’. The ribosome attaches to the mRNA. It then slides along this single strand of zip, and as it does so, ‘reads’ the code, and then makes a little strand, like a bead of pearls (a polypeptide). That strand of polypeptide then curls and folds itself into a little ball or blob; and this little blob of protein, is the very thing that the cell was looking for in the first place.
It might be a structural protein, an enzyme, a building block, a replacement part, or whatever. When the ribosome slides along the piece of mRNA it makes this new little string that will ultimately fold upon itself to become the required product. This wonderful orchestral process is as ancient as life itself and is called ‘translation.’
It is one of the rare occasions when jargon makes sense, for the little piece of mRNA, has indeed been ‘translated’ into a protein or ‘final product’ by the ribosome. The cell has now manufactured the thing that it needs, and after a few translations, the mRNA then degrades. No more ribosomes can attach to it, and no further product can be manufactured from it. If the cell wants another product it must send another message into the nucleus and call for another mRNA copy to be made in the nucleus and sent into the cytoplasm. It is a beautifully organised process, integral not simply to human life but to all life on the planet.
How Does a Genetic-Vaccine Work?
If you got all of that, you have grasped some of the fundamentals of cell biology and we are now able to ask: how does a genetic vaccine work?
Most of us have seen an image or an artist’s impression of what a coronavirus looks like. A little ball, covered in spikes, like a medieval weapon swung from the end of a chain. Inside this little ball are the virus’s own genes. These genes are in the form of strands of RNA; the same type of RNA that is made in the nucleus of our cells, and sent into the cytoplasm for the manufacture of all ‘things’ that the cell needs.
SARS-CoV-2
The main difference between the RNA strands within a coronavirus, and those that naturally emerge from the nucleus of our own cells, is that coronavirus RNA does not code for ‘things’ that our cells might need. On the contrary, it codes for pieces that make up the coronavirus itself.
When a coronavirus binds to the outside of one of the cells in our respiratory tract, it releases its RNA into those cells – into the white of the egg – and there, instead of making proteins that are needed by our cells, our ribosomes attach to their viral RNA and begin to manufacture (or translate) proteins that make up the physical structure of the virus. The host cell has now becomes a virus-making factory; the cytoplasm swells with viral particles; the cell bursts, and thousands of new viruses (virions) are released into the bloodstream, or the fluid that lies outside of the cell membrane.
A genetic vaccine looks like, and functions, in almost exactly the same manner as the coronavirus itself. If a genetic vaccine could be visualised, it would look like a little sphere that encapsulates a piece of viral RNA or DNA (depending on which of the four vaccines we are considering). The role of the sphere is to protect the RNA or DNA inside the vaccine, and, most importantly, to bind it to human cells in a manner that will allow the piece of RNA or DNA to enter host cells at the site where the ‘vaccine’ is injected.
For an RNA containing vaccine (Pfizer & Moderna) once the vaccine RNA gets inside our cells, our ribosomes attach and translate the RNA into a piece of the virus (one of the spike proteins). The host cell will then swell with spike proteins, and release them into the blood stream or body fluids outside the cell. There, the spike-protein will trigger the same immune response that Jenner and the traditional vaccines make use of.
For DNA vaccines (Johnson & Johnson, AstraZeneca) the vaccine-DNA makes its way into the nucleus of our cells where it begins working (and is treated the same as our own DNA). It is copied into a piece of mRNA that will then travel into the cytoplasm and be translated by ribosomes into spike-proteins. Because genetic vaccines cannot infect cells, the process whereby a genetic-vaccine enters host cells is referred to as ‘transfection’.
It is only after the transfected host cell releases spike-protein into the blood stream that our genetic-vaccine begins working in the ‘traditional’ way. In reality, it is the cellular process for the manufacture of things which has been hijacked, and the ‘traditional vaccine’ is being made inside one’s own cells. The ‘vaccine’ is released into our blood stream in the same way that a cell infected with a virus releases new virus into the blood stream or tissues.
The final result might be the same, however, where a genetic-vaccine is different is in its mechanism it operates inside cells at a level of intimacy that Jenner could never have imagined. Because DNA vaccines enter the nucleus of our cells, and are treated as our own DNA, they come with a risk of damaging our own DNA, causing mutations, including, potentially, cancer. The potential is indeed an established fact. It is no less established than the fact that there is a link between smoking and cancer.
Consider when a piece of synthetic DNA comes within intimate proximity of a relatively enormous coiled ball of DNA that is dynamically unwinding and unravelling in response to the daily activities of the cell. Is there a chance that this relatively small piece of synthetic DNA might become incorporated into or interfere with the normal function of our own DNA? Before Covid, the answer was an emphatic yes. However of late, the mere suggestion will undoubtedly be treated as something of a ‘conspiracy theory’.
It is for this and other reasons that genetic-vaccines have not been previously licensed for use in humans prior to the current crisis. Thus, a 2013 paper[xiii]published in Germs, the respected Journal of Infectious Diseases lists the established disadvantages of DNA vaccines.
Of the 4 Genetic Vaccines currently available, 2 are RNA based (Pfizer/Moderna), & 2 are DNA based (AstraZen/J&J). Here's what non-bias (pre-covid) Science, states about the disadvantages of DNA Vaccines:
Very limited forms of gene therapy are available in the treatment of terminal cancers. However, pharmaceutical companies have not been able to market this form of medicine, outside of the laboratory, on human populations.[xiv] A cynic might reasonably argue that companies are exploiting the current crisis in order to expedite safety trials and open the market for ‘gene-therapy’.
There is nothing new here, this type of therapy, whereby patients are administered the gene for a missing or desired product, has been in development for several decades. The major difficulty for pharmaceutical companies has been how to get it out of the laboratory and past the paralysis of safety trials. It is certainly easy to see that if our cells are programmed to make and release spike-proteins, they can also be programmed to release other kinds of proteins, drugs and potential therapies directly into the human blood stream or tissues.[xv] Getting this type of therapy past regulators, and avoiding meaningful debate, has, (for better or worse), clearly been accomplished within the context of the current crisis.
From a simple economic perspective, if human cells can be programmed to take on the role of manufacturing the ‘drug’, numerous difficulties in respect of production, costs, delivery, and even safety trials, are relatively easily overcome. The paradigm shift that resulted from Jenner’s development of vaccination could pale into insignificance compared to the potential game changer of genetic-vaccine.
If, indeed, these vaccines are going to protect people from Covid-19, and they come with the added benefit of paving the way for novel therapies, why are people like me getting our proverbial knickers in a twist?
Again the answer is not that complicated. The cellular process of ‘translation’ that is being ‘hijacked’ by the relevant pharmaceutical companies, does not belong to them, to our respiratory cells, or even human cells. As mentioned already, it is a process that belongs to ALL cells, in ALL species. In essence it ‘belongs’ to all living things in Nature.
If anything happens to go wrong, the consequences are not limited to human beings, as the process being ‘hijacked’ is not exclusive to us. It ‘belongs’ to all life on Earth. The consequence of error, may extend further than a little nausea or swelling at the injection site.[xvi] Potential consequences extend to all cells that utilize the same process, and come in contact with the manufactured DNA or RNA.
DNA or RNA? Red or White?
Whilst the potential for either of the two available DNA vaccines to integrate into, or damage, human DNA is well established; there is an argument being made that this cannot possibly occur with the two available RNA vaccines.
Generally speaking within our cells once RNA is copied or made in the nucleus it moves into the cytoplasm. It does not travel backwards. RNA does not move back inside the nucleus and incorporate into our DNA. However, the key words here are: ‘generally speaking.’
Nature (generally speaking) blocks this possibility because the copied RNA that exits the nucleus, is different to DNA. It is an RNA copy of the DNA, the RNA cannot bind or interact with DNA. In the first instance RNA is a single stranded copy of one side of the zip. In the second instance the ‘teeth’ on the newly copied RNA are slightly different. They are tweaked with a sugar molecule called ribose, they are ‘ribosylated’ and therefore cannot readily recombine with DNA. (The ‘R’ in RNA simply means Ribosylated Nucleic Acid.)
The RNA does indeed code for the same message that is contained within the DNA, but the teeth, or the letters of the RNA code, are slightly different. RNA does not travel backwards and interfere with DNA. Generally speaking they are incompatible, and cannot interfere with each other. Therefore, when the vaccine makers insist that the pieces of RNA that they have transfected into our cells do not interact with our DNA; well, they aren’t spoofing. It doesn’t normally happen that RNA interferes with DNA.
So that’s what it says on the tin. However, there are two points that must be considered before we take this claim at face value. The first is a question of ‘precedence’ and the second is a question of scale.
Does it happen in humans and in Nature that RNA can travel backwards into the nucleus and interfere with or incorporate into DNA? The simple answer to this question is a definite yes! RNA can and does travel backwards to incorporate itself into our DNA. This retrograde move, (where RNA sequences become incorporated into DNA) is called reverse-transcription. The reason for the use of ‘retro’ in the word retrovirus, is because retroviruses, and many other viruses, make use of reverse-transcription, converting RNA into DNA that will then integrate into our own DNA.
HIV and HTLV (a human virus that causes t-cell leukaemia) are examples of viral infections, where RNA is converted backwards into DNA which then ‘interferes’ with our own DNA inside the nucleus of our cells. These viruses contain RNA, and they also carry an enzyme called ‘reverse transcriptase’. This enzyme converts RNA backwards into DNA. Retroviruses and other viruses (such as Hepatitis B) introduce the reverse-transcriptase enzyme into our cells when they infect them.[xvii] Furthermore, our own cells normally produce and use this enzyme (reverse transcriptase) inside the nucleus, where it has some ‘house-keeping’ roles in maintaining our own DNA.[xviii]
Perhaps even more interesting is the fact that within the human genome some 8% of our DNA is composed of DNA that was originally viral RNA. Infections with RNA viruses whose genes have since become permanently incorporated into our own DNA. These sequences are called ‘Human Endogenous Retroviral Sequences’ or HERVS.[xix] Many of them persist within our genome because they may code for proteins or things that are likely to be of some benefit to us; genes brought into our genome from outside the cell, via the natural, dynamic interaction between viruses, retroviruses and human DNA.
Many more of these endogenous retroviral (originally RNA) sequences are mysteriously redundant, and science is yet to learn of their function in sickness or in health. The fact remains that they are present; been present for countless millennia; may be integral to our evolution as a species; and are certainly with us ‘until death do us part.’ They should serve to remind us that there is a long established history of communication between viral and human genetics; an interaction that we should attempt to understand before it is blindly manipulated.
Interconnectedness
Too often viruses are portrayed as static structures, distinct from our own genetic material and distinct from one another. This is quite simply a rather primitive concept, the same kind of thinking that removes human beings and the consequence of our actions from Nature. It is part of the reason we remain largely incapable of seeing and appreciating the vast web of interconnectedness that dependently joins us to whales, rain forests, and even viruses.
We depend upon viruses for our genetics, as we depend upon yeast for our beer. Often viruses depend upon each other to cause infection. In certain instances, if a particular virus is missing something, a part or component (without which it is defective or deficient), the missing part is supplied by another helper-virus. There are helper-viruses, and there is an entire family of viruses (dependoviruses) that are entirely dependent upon assistance from helper-viruses. For example, in Humans, Hepatitis D virus is activated, only in the presence of Hepatitis B virus. Essentially, in order to function, the D-virus ‘borrows’ some missing parts from the B virus.
In short, viruses are not ‘monogamous recluses’: interacting with each other; helping each other; interacting with our genetic material within the cytoplasm and within the nucleus. It does not matters if that genetic material has come from the nucleus of our own cells, or been synthesized in the labs at Johnson and Johnson.[xx]
A Question of Scale
There is no such thing as a ‘perfect process’. Do something for the first time and you might do it right, do it right enough times, and you will eventually do it wrong.
When vaccine RNA or DNA hijacks a natural cellular processes and transforms the cell to vaccine or spike-protein production; how many times does this ‘event’ occur in the tissue of the person who has thus been vaccinated? Thousands, or several thousands of times? How many times has it occurred when several billion people are vaccinated? I don’t know the answer to this question. However, when a process is repeated billions of times, mistakes are no longer ‘possible’, they are inevitable. Such mistakes or mutations are not only inevitable but are essential, lying at the heart of evolution itself.
The End is Nigh?
There is certainly a mountain of spin and delusion on either side of the ‘genetic-vaccine’ or ‘gene-therapy’ debate, and we must keep matters in perspective. Genetic modification is here to stay, for better or for worse. The argument in respect of unforeseen genetic consequence to ourselves and/or other species is an old one. It began with ‘Dolly’ the sheep, and has raged for some time around the desirability of genetically modified foods.
Ironically, the introduction of synthetic genes into vegetables, created something of an international furore, yet the transfection of synthetic genes into millions of regular human beings has created far less controversy. Debate or discussion on the subject of genetic modification or therapy, its necessity, utility, or potential harm, is long overdue; although perhaps it might be a case of too little, too late.
Today, many of the foods we eat have been genetically modified to some degree. Genetically modified food is, however, met with and processed by the acid and digestive enzymes in our guts. The synthetic genes in GM products do not (as far as we know) enter our cells, they do not attempt to manipulate our own cellular or genetic processes.
There is clearly an urgent need to revisit this debate in light of these new vaccines. The battle may have been lost in respect of GM crops, but there is a reasonable argument to be advanced this time round as ‘human genetic processes’ are being tampered with, rather than sheep, beetroot or soya beans.
The Right Hashtag?
In recent years discourse and protest have become strangely predictable, organised around or stimulated by whatever happens to be trending on social media. It seems the right hashtag hasn’t been developed for ‘debate’ in respect of current pandemic policy, even as that policy extends into the function of our own cells.
How many people in Ireland, or around the world, know how a Covid vaccine work? How many clinicians are aware for that matter? When debate does erupt in relatively small pockets around the country it is hijacked by extremists or dismissed as being organised and attended by extremists. Social media appears to be moderating our behaviour to a greater degree than even genetics.
The health of our society depends far more on constructing a more honest and happier version of ourselves. We need to re-evaluate materialism, define happiness, reduce consumption, eat less (or no) meat, take plastics out of our food chain and ecosystems, restore and preserve habitats, protect and understand a biodiversity upon which we are entirely dependent. All of this, and more, is not contingent on genetic modification, no more than it is dependent on us getting to Mars.
Therefore, for the reasons I have outlined, I would not inject a healthy animal with an experimental genetic-vaccine, never mind a healthy human being.
[i] Jonathan Corum and Carl Zimmer, ‘How the Oxford-AstraZeneca Vaccine Works,’ New York Times, March 22nd, 2020, https://www.nytimes.com/interactive/2020/health/oxford-astrazeneca-covid-19-vaccine.html
[ii] Smriti Mallapaty, ‘The coronavirus is most deadly if you are older and male — new data reveal the risks’ August 28th, 2020, https://www.nature.com/articles/d41586-020-02483-2
[iii] Adam W. Gaffney, ‘We need to start thinking more critically — and speaking more cautiously — about long Covid’ Statnews, March 22nd, 2021, https://www.statnews.com/2021/03/22/we-need-to-start-thinking-more-critically-speaking-cautiously-long-covid/
[iv] Conor Pope, Vivienne Clarke, ‘Vaccination rollout in nursing homes almost complete, HSE says,’ February 12th, 2020, Irish Times, https://www.irishtimes.com/news/health/vaccination-rollout-in-nursing-homes-almost-complete-hse-says-1.4483250
[vi] Moderna Announces First Participants Dosed in Phase 2/3 Study of COVID-19 Vaccine Candidate in Pediatric Population https://investors.modernatx.com/news-releases/news-release-details/moderna-announces-first-participants-dosed-phase-23-study-0
[ix] ‘Immune evasion means we need a new COVID-19 social contract’, The Lancet, February 18th, 2021, https://www.thelancet.com/journals/lanpub/article/PIIS2468-2667(21)00036-0/fulltext
[x] Jeremy Divine, ‘The Dubious Origins of Long Covid’, Wall Street Journal, March 22nd, 2021, https://www.wsj.com/articles/the-dubious-origins-of-long-covid-11616452583
[xi] Angela Betsaida B. Laguipo, ‘86 percent of the UK’s COVID-19 patients have no symptoms,’ News Medical Life Sciences, October 9th, 2020, https://www.news-medical.net/news/20201009/86-percent-of-the-UKs-COVID-19-patients-have-no-symptoms.aspx
[xii] The History of Vaccines, Chinese Smallpox Inoculation, https://www.historyofvaccines.org/content/early-chinese-inoculation
[xiv] Kristina Fiore, ‘Want to Know More About mRNA Before Your COVID Jab?’ Medpage Today, December 3rd, 2020, https://www.medpagetoday.com/infectiousdisease/covid19/89998
[xv] Nature Reviews Drug Discovery volume 17, pages261–279(2018)
[xvi] Nicola Davis, ‘Covid vaccine side-effects: what are they, who gets them and why?’ The Guardian, March 18th, 2021, https://www.theguardian.com/world/2021/mar/18/covid-vaccine-side-effects-what-are-they-who-gets-them-and-why
[xvii] Medical Microbiology. 4th edition (Chapter 62).Galveston (TX): University of Texas Medical Branch at Galveston; 1996.
[xviii] Proc Natl Acad Sci U S A. 1986 Apr; 83(8): 2531–2535.
doi: 10.1073/pnas.83.8.2531, https://www.nature.com/articles/1205081
[xix] PMCID: PMC7139688 PMID: 32155827 Human Endogenous Retroviruses (HERVs): Shaping the Innate Immune Response in Cancers.
[xx] Knipe, David M.; Howley, Peter M. (2007). Fields Virology (5th ed.). Lippincott Williams & Wilkins. pp. 126–7.