patrick.net

The ongoing denial by WHO, public health agencies and governments of science-based evidence on how to mitigate the already disastrous global and individual consequences of this pandemic are beyond mind-blowing. Whereas a number of medical doctors are now doing the utmost to make highly successful early multidrug treatment broadly accessible, I am contributing my part on analyzing the epidemiologic and health consequences of the ongoing mass vaccination campaigns and sharing - in all transparency - my insights with the broader public. From the critical opinion article below, it becomes already obvious that several scientists who are studying the evolutionary biology and genetic/ molecular epidemiology of this pandemic know too well that this pandemic is not over at all and that the global health risk posed by variants is very substantial. So, why do they keep silent?

I realize that the scientific language is not easily accessible to laymen. I hope the way I structured the article will, however, help them to grasp the key message.




Summary

As Sars-CoV-2 entered a highly susceptible human population, it has initially been spreading rapidly and in an uncontrollable way. This already explains why Sars-CoV-2 has been evolving rather slowly with no substantial selection of fitness-enhancing mutations occurring over the first 10 months of the pandemic (i.e., between December 2019 and October 2020). More infectious ‘variants of concern’ (VoCs, i.e., alpha [B.1.1.7], beta [B.1.351], gamma [P.1]) started to appear as of late 2020 and led to a steep increase in cases worldwide.


Molecular epidemiologists have observed that mutations within the Sars-CoV-2 spike (S) protein of these emerging, more infectious lineages are converging to the same genetic sites, a phenomenon that coincided with a major evolutionary shift in the landscape of naturally selected Sars-CoV-2 mutations (1).


Significant convergent evolution(*) of more infectious circulating Sars-CoV-2 variants is not a neutral, host-independent evolutionary phenomenon that merely results from increased viral replication and transmission but is strongly suggestive of natural selection and adaptation following a dramatic shift in the host(ile) environment the virus is exposed to (1).


Molecular epidemiologists fully acknowledge that the pandemic is currently evolving Sars-CoV-2 variants that “could be a considerably bigger problem for us than any variants that we currently know in that they might have any combinations of increased transmissibility, altered virulence and/or increased capacity to escape population immunity” (1). This is to say that phylogenetics-based natural selection analysis on circulating Sars-CoV-2 lineages strongly suggests that viral variants resistant to spike (S)-based Covid-19 vaccines are currently expanding in prevalence and highly suspicious of causing future epidemic surges globally.


Deployment of current Covid-19 vaccines in mass vaccination campaigns combined with the ongoing widespread circulation of Sars-CoV-2 can only increase immune selective pressure on Sars-CoV-2 spike protein and hence, further drive its adaptive evolution to circumvent vaccine-induced humoral immunity. In this regard, the expectation of an increasing number of vaccinologists matches the current observation made by genomic epidemiologists in that S protein-directed immune escape variants are highly likely to further spread and expedite the occurrence of viral resistance to the currently deployed and future (so-called ‘2nd generation’) Covid-19 vaccines.


To monitor the circulation of hazardous viral variants in the population and to be able to provide unequivocal proof of the immune selection pressure exerted by mass vaccination campaigns and the harmful consequences thereof, there is an urgent need for conducting representative viral sampling on vaccinees, including those who are healthy or only subject to mild disease, and to genetically characterize the variants they shed upon exposure to Sars-CoV-2.


Conducting a mass vaccination experiment at a global scale without understanding the mechanisms underlying viral escape from vaccine-mediated selection pressure is not only a colossal scientific blunder but, first and foremost, completely irresponsible from the perspective of individual and public health ethics.


In the absence of vaccines capable of inducing sterilizing immunity, early multidrug treatment as proposed by Prof. Dr. P. McCullough and others (https://pubmed.ncbi.nlm.nih.gov/33387997/), together with global chemoprophylaxis using highly efficient antiviral drugs, will be key to save lives, reduce the hospitalization burden and dramatically diminish transmission of highly infectious or neutralizing antibody (nAb)-resistant escape variants.


(*) Convergent evolution relates to the independent occurrence of one or more mutations that are shared in common across several viral variants