> Evidence seen by The Sunday Times suggests that a virus found in its depths — part of a faecal sample that was frozen and sent to a Chinese laboratory for analysis and storage — is the closest known match to the virus that causes Covid-19.
This has been publicly known for months. It was published in biorRxiv in January and appeared in Nature in early February.[1]
> The virus was a huge discovery. It was a “new strain” of a Sars-type coronavirus that, surprisingly, received only a passing mention in an academic paper.
RaTG13 was one of hundreds of SARS-like coronaviruses discovered in these bat caves. In 2013, it was not considered a major discovery. One reason is that it is only 80% similar to the original SARS. At the time, researchers were much more interested in viruses that were more like 99% similar to SARS. Those viruses were studied much more intensively, and were the subject of numerous papers.
> What happened to the virus in the years between its discovery and the eruption of Covid-19? Why was its existence tucked away in obscure records, and its link to three deaths not mentioned?
The article never provides any evidence that these people became sick from RaTG13. There are hundreds of known SARS-like coronaviruses, and there are estimated to be thousands of as-of-yet undiscovered ones. The author of this article seems to be under the impression that RaTG13 is the only known SARS-like coronavirus.
> These produced a remarkable finding: while none had tested positive for Sars, all four had antibodies against another, unknown Sars-like coronavirus.
There was a study published in 2016 that found that 3% of people tested in a region of the countryside in Yunnan province had antibodies against SARS-like coronaviruses.[2] The sorts of spillover events described in this article are probably not uncommon at all. It has always just been a question of when a spillover event would lead to sustained transmission, instead of petering out.
The rest of the article goes on to try to suggest that RaTG13 leaked from a lab. RaTG13 is separated from SARS-CoV-2 by decades of evolution. It's the closest known relative of SARS-CoV-2, but not its ancestor. It's sad that tabloids are going after the people who have spent decades trying to understand these types of viruses, so that we would be prepared for new outbreaks.