A team of scientists say it is “beyond reasonable doubt” the Covid pandemic started with infected animals sold at a market, rather than a laboratory leak.

They were analysing hundreds of samples collected from Wuhan, China, in January 2020.

The results identify a shortlist of animals – including racoon dogs, civets and bamboo rats – as potential sources of the pandemic.

Despite even highlighting one market stall as a hotspot of both animals and coronavirus, the study cannot provide definitive proof.

The samples were collected by Chinese officials in the early stages of Covid and are one of the most scientifically valuable sources of information on the origins of the pandemic.

Their analysis was published last year and the raw data made available to other scientists. Now a team in the US and France says they have performed even more advanced genetic analyses to peer deeper into Covid’s early days.

  • lunarul@lemmy.world
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    3 months ago

    Wasn’t this known already? Weren’t there all kinds of discussions about shutting down wet markets because of this?

    • jonne@infosec.pub
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      3 months ago

      There’s a bunch of indications / conspiracy theories that it might have been a lab leak. Basically there’s not really a way to know unless the Chinese government starts being more forthcoming with information.

      The main reason the conspiracy theory started is because the city where it started had a world renowned virus research facility in it.

      Of course, the reason the facility is there in the first place is because Wuhan province is a place where a lot of viruses originate naturally (in bat colonies), so it makes sense you research the viruses close to their natural reservoir.

      • Knock_Knock_Lemmy_In@lemmy.world
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        3 months ago

        Wuhan province is a place where a lot of viruses originate naturally (in bat colonies)

        This is disingenuous. RaTG13 was sourced in Tongguan in Mojiang Hani Autonomous County 1800km from Wuhan.

        • chuckleslord@lemmy.world
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          3 months ago

          … what? Bats are virus factories due to how their biology/immune system works. They opened a lab in Wuhan to study any novel viruses coming out of the local bat population. That’s what that person is referencing. Your counter is basically a non sequitar.

          • Knock_Knock_Lemmy_In@lemmy.world
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            3 months ago

            coming out of the local bat population

            My point is that the word local is both incorrect and misleading. Bats from 1800km away are not local.

    • mlg@lemmy.world
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      3 months ago

      Yeah but the US media was too busy implying that China manufactured the virus in a bio lab.

      Funnily enough China still suffered because it failed to lock down early enough because the government tried to ignore and detain doctors in an effort to control the narrative that everything would be fine.

      The US suffered because they nuked their Pandemic emergency pla only like a few years before covid because Trump thought Spanish Fever wouldn’t reincarnate to finish the job on its 100th anniversary lol.

      So it was easy to vaguely point at China instead of actually solving the problem.

    • The Octonaut@mander.xyz
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      3 months ago

      Wasn’t this disproven already? Covid has been detected in human waste matter samples from Autumn 2019 in Italy.

      Overall, the results of this blind retesting of a selected set of samples indicate the presence of SARS-CoV-2 antibodies in some SMILE samples collected in the prepandemic period. The oldest samples found positive for IgM by both laboratories were collected on 10 October 2019 (Lombardy), 11 November 2019 (Lombardy) and 5 February 2020 (Lazio), the latter with neutralizing antibodies. Two additional samples collected on 17 December 2019 (Campania) and 28 January 2020 (Lombardy) tested as IgG positive by VisMederi and positive for IgG S1 and IgG S1+NP by Erasmus. Additional IgM positive cases could have been detected also by Erasmus by lowering the cut-off of the commercial IgM assay. The older among these putative additional IgM positive samples was collected on 3 September 2019 in the Veneto region, one of the first and mostly severely affected COVID-19 regions.

      https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8778320/