by Alex Christoforou, The Duran:

What are the chances, after all, that the epicentre of the COVID-19 outbreak should occur within literal walking distance of the leading research and collection centre in the world for SARS-like bat coronaviruses? This article explains the specific lab accident scenarios and describes how the kind of research conducted at the WIV makes a lab accident a strong possibility.

If the public has learned a lesson from the COVID-19 pandemic it is that science does not generate certainty. Do homemade face masks work? What is the death rate of COVID-19? How accurate are the tests? How many people have no symptoms? And so on. Practically the lone undisputed assertion made so far is that all the nearest known genetic relatives of its cause, the Sars-CoV-2 virus, are found in horseshoe bats (Zhou et al., 2020). Therefore, the likely viral reservoir was a bat.

However, most of these ancestor-like bat coronaviruses cannot infect humans (Ge et al., 2013). In consequence, from its beginning, a key question hanging over the pandemic has been: How did a bat RNA virus evolve into a human pathogen that is both virulent and deadly?

The answer almost universally seized upon is that there was an intermediate species. Some animal, perhaps a snake, perhaps a palm civet, perhaps a pangolin, served as a temporary host. This bridging animal would probably have had an ACE2 cellular receptor (the molecule which allows cellular entry of the virus) intermediate in protein sequence (or at least structure) between the bat and the human one (Wan et al., 2020).

In the press and in the scientific literature, scenarios by which this natural zoonotic transfer might have occurred have been endlessly mulled. Most were fuelled by early findings that many of the earliest COVID-19 cases seem to have occurred in and around Wuhan’s Huanan live animal market. [The latest data are that 14 of the 41 earliest cases, including the first, had no connection to the animal market (Huang et al. 2020)].

Since the two previous coronavirus near-pandemics of SARS (2002-3) and MERS (2012) both probably came from bats and both are thought (but not proven) to have transitioned to humans via intermediate animals (civets and dromedaries respectively), a natural zoonotic pathway is a reasonable first assumption (Andersen et al., 2020).

The idea, as it applied to the original (2002) SARS outbreak, is that the original bat virus infected a civet. The virus then evolved briefly in this animal species, but not enough to cause a civet pandemic, and then was picked up by a human before it died out in civets. In this first human (patient zero) the virus survived, perhaps only barely, but was passed on, marking the first case of human to human transmission. As it was successively passed on in its first few human hosts the virus rapidly evolved, adapting to better infect its new hosts. After a few such tentative transmissions the pandemic proper began.

Perhaps this scenario is approximately how the current COVID-19 pandemic began.

But one other troubling possibility must be dispensed with. It follows from the fact that the epicentre city, Wuhan (pop. 11 million), happens to be the global epicentre of bat coronavirus research (e.g. Hu et al., 2017).

Prompted by this proximity, various researchers and news media, prominently the Washington Post, and with much more data Newsweek, have drawn up a prima facie case that a laboratory origin is a strong possibility (Zhan et al., 2020; Piplani et al., 2020). That is, one of the two labs in Wuhan that has worked on coronaviruses accidentally let a natural virus escape; or, the lab was genetically engineering (or otherwise manipulating) a Sars-CoV-2-like virus which then escaped.

Unfortunately, in the US at least, the question of the pandemic’s origin has become a political football; either an opportunity for Sinophobia or a partisan “blame game“.

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