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intrepidity

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Member since: Sun Feb 14, 2016, 06:36 PM
Number of posts: 5,767

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Tracking variants: covidcg.org (Tw)

https://twitter.com/Ayjchan/status/1381401385170825223
https://twitter.com/Ayjchan/status/1381413095277539328
Much more in this Twitter thread:

https://mobile.twitter.com/Ayjchan/status/1381403265607331843

Bacteria: in nature vs in a lab (humor)



(found on Twitter)

Nature: After the WHO report: what's next in the search for COVID's origins

(...)
The priority should be to “follow the animals”, starting at the Huanan market, says Eddie Holmes, a virologist at the University of Sydney in Australia. Given the large number of animal species that SARS-CoV-2 can infect, that sampling should be as expansive as possible, say researchers.

And it should definitely include bats. The closest known relative of SARS-CoV-2 is a bat coronavirus called RaTG13, isolated from a bat in a mine in Mojiang, southern China. But it shares only 96% of its genome with SARS-CoV-2, meaning that it is only distantly related. Courtier says that more bats should be sampled from that mine, and that researchers should share the sequences of other coronaviruses isolated there.

But Linfa Wang, a virologist at Duke–National University of Singapore Medical School, doubts whether closer relatives will be found, given the exhaustive sampling done in the cave by researchers over the past decade. “If you gave me a billion dollars, I would not sample in Mojiang cave. I would sample in Southeast Asia,” adds Wang, who says that sampling should extend to lesser-sampled regions such as Thailand and Cambodia, where other relatives of SARS-CoV-2 have recently been isolated.

More: https://www.nature.com/articles/d41586-021-00877-4

So my question is: how much do we risk by ramping up the search for the animal that gave us Covid19?

The mineshaft in Mojiang should probably be permanently sealed and/or decontaminated. It seems that authorities are currently not allowing anyone to visit.

I understand the scientific curiosity, and even the need to study and understand the potential threats, but at what point does it become counterproductive?

I am very torn on this matter.
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