A lab worker in China. (Photo by China Photos/Getty Images)

It has taken 17 months since the new coronavirus supposedly erupted, but the lab leak hypothesis has finally come in from the cold. At first it was dismissed as a crazy conspiracy theory promoted by ranting right-wingers and nasty Sinophobes; a stance inflamed by some of the wilder claims made about the deliberate release of bio-weapons and the determination of some scientists to assist the Chinese cover-up. But now an increasing number of credible scientific voices are calling for a full investigation into whether this global catastrophe was the result of some kind of human error at a Wuhan laboratory.
The ground began to shift late last year when Stanford microbiologist David Relman published a superb paper setting out why we should investigate seriously the possibility of a lab leak alongside natural zoonotic transmission, backing the small handful of brave scientists who had been making this case to the scorn of the medical establishment. In recent weeks several more leading experts — including Nobel-winning virologist David Baltimore, influential Cambridge geneticist Ravindra Gupta and Ralph Baric, the US epidemiologist who carried out controversial experiments on coronaviruses with Wuhan researchers — have gone public with similar demands. Even Anthony Fauci, the top US expert on infectious diseases heading its pandemic response, now concedes the virus could have come from a laboratory spillover event.
It is depressing it has taken so long for the world of science, supported by most journalists and politicians, to start accepting the basic truth that no theory should be discounted without evidence — especially given the seriousness of the issues at stake and history of leaks from laboratories. A spate of strong articles seems to have suddenly changed the media narrative, despite mostly reheating material familiar to those of us who have been tracking this story for months. The latest Wall Street Journal story, for example, about three Wuhan researchers allegedly falling suspiciously sick in November, builds on facts revealed by David Asher, former lead investigator for the State Department, in interviews two months ago with both the Australian journalist Sharri Markson and myself.
But what would it mean if the lab leak hypotheses proved correct? The result would be uncomfortable not just for the Chinese Communist Party, which would be guilty of overseeing arguably the biggest cover-up in history of an event that caused economic chaos, millions of deaths and misery around the world. It would shake science to its foundations for carrying out risky research despite clear warnings of the dangers, and then collaborating in an epic whitewash. And it would challenge a media that meekly accepted the establishment view rather than doing its job of asking difficult questions — a failure even more serious than the Iraq War intelligence debacle. Indeed, much of science and the media already look sadly tainted by their failures on this front, regardless of the outcome.
We still have no hard proof how this wretched pandemic emerged in that central Chinese city. We do know, however, that determined efforts in both China and the wider world to prove that Covid-19 had a natural zoonotic origin have failed so far to find an intermediate host animal that might have turned a bat virus into such a lethal, well-adapted pathogen for human beings, despite testing 80,000 samples. We know that Chinese officials were guilty of an initial cover-up that inflamed the impact of the disease with devastating global consequences, and that Beijing promoted false theories, smeared critics and expelled foreign reporters. We also know that the World Health Organisation’s collusion with the Communist regime has undermined its credibility.
On the flip side, there is also a body of circumstantial evidence and strange events pointing to a possible accident. These range from the sudden removal of a key virus database in mid-September through to admissions of serious safety concerns in Wuhan’s labs and a hastily censored paper by two Chinese scientists blaming a lab leak. There is also, of course, the coincidence that this pandemic began in a city that is home to Asia’s biggest bat coronavirus research at Wuhan Institute of Virology as well as several other key research centres, yet hundreds of miles from the southern Chinese caves where samples are collected from the creatures. Occam’s Razor certainly points to one of the labs.
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