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.

    • peopleproblems
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      110 minutes ago

      I think they determined that the virus that spread to humans was bats that transferred to something in the market (aka intermediate hosts). That virus would have spread there, while technically the bats could have infected humans.

    • Wuhan market didn’t sell bats.

      Also, the only bats with a (96%) similar covid strain were in caves 1000 miles away.

      However, samples from those bats were stored at the wuhan institute of virology.

      • Flying Squid
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        34 hours ago

        Very first sentence quoted above. You don’t even have to go to the article:

        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.

        No amount of evidence or scientific consensus can convince a conspiracy theorist…

        And yes, I know:

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

        Therefore lab leak, right?

        • Roflmasterbigpimp
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          4 hours ago

          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.

          This Part makes me question things a bit. China is not really known for being honest about things happening in China.

          • @Knock_Knock_Lemmy_In@lemmy.world
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            2 hours ago

            The study itself is quite balanced and honest about data collection. It doesn’t rule out a lab origin like the article claims.

            our study does not rule out human-to-animal transmission, as the sampling was carried out after the human infection within the market. Thus, the possibility of potential introduction of the virus to the market through infected humans, or cold-chain products, cannot yet be ruled out.

          • Flying Squid
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            34 hours ago

            Questioning things is fine. On the other hand, it’s pretty hard to fake the ability to trace DNA to a specific market stall.

            On top of that, the person I replied to is not questioning. They’ve already decided it’s definitely a lab leak. See all of their other comments.

  • @lunarul@lemmy.world
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    9 hours 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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      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.

      • 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.

    • @mlg@lemmy.world
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      59 hours 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
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      07 hours 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/

      • @fine_sandy_bottom
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        44 hours ago

        I don’t really understand what this is actually saying?

        Surely, if this were saying “covid started in italy” or “covid was around in 2019” that would rate more song and dance than a single obscure research paper?

        • The Octonaut
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          143 minutes ago

          There’s a lot more than a single obscure research paper but that’s the best one in terms of science in my opinion. It was quite broadly covered news (in Europe at least?) when the virus was first found in waste water samples from Milan from the same period.

          We knew it was in Europe before 2020 all the way back in June 2020: https://www.reuters.com/article/business/healthcare-pharmaceuticals/italy-sewage-study-suggests-covid-19-was-there-in-december-2019-idUSKBN23Q1J8/

          By November 2020 it was pushed back as far as September 2019: https://newseu.cgtn.com/news/2020-11-17/COVID-19-was-spreading-in-Italy-by-September-2019-study-indicates-VuSqUttP8s/index.html

          As someone else replied, it isn’t saying Covid started in Italy, but rather that it definitely didn’t start because someone ate bat soup from a wet market in Wuhan in December 2019. Well, the science is just stating as a fact that Covid was in these samples from Italy in 2019. Everything else is inferred.

          It was 2020. We had people shouting about “the China Virus” and others defending the cultural importance of wet markets and others saying it was a bioweapon from a lab and others saying it didn’t exist at all.

          It seemed to suit absolutely nobody’s narrative that

          • it took longer to be detected than previously thought, and lots of doctors missed it
          • we don’t really know where it started exactly, and can’t really ever know without a concerted investigation of the same sort done in Italy
          • international travel and globalisation as well as illegal trade of exotic animals and their carcasses makes it all pretty much guesswork, since Indonesian civit poachers on Filipino boats in the South China Sea don’t submit wastewater samples
          • ultimately its source was inconsequential compared to how we actually responded and what we retained afterwards (nothing, it seems)
        • These findings do not at all suggest that the virus originated in Italy, but they endorse the idea that the virus was likely spreading in China before the first known cases and that could have been circulated by travelers given direct the connections between China and European and US countries, particularly the Northern West and East Italian regions, which are among the most industrialized and connected areas of Italy.

    • tiredofsametab
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      28 hours ago

      You don’t even need to eat them; just being in close proximity to them and interacting with them is enough.

      On the other hands, cows, chickens, and humans came together to create a smallpox vaccine, so there’s that at least.

        • @Knock_Knock_Lemmy_In@lemmy.world
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          155 minutes ago

          Points to the bar. “You see this bar? I built this bar with my bare hands from the finest wood in the county. Gave it more love and care than my own child. But do they call me MacGregor the bar builder? No.”

          Points out the window. “You see that stone wall out there? I built that stone wall with my bare hands. Found every stone, placed them just so through the rain and the cold. But do they call me MacGregor the stone wall builder? No.”

          Points out the window. "You see that pier on the lake out there? I built that pier with my bare hands. Drove the pilings against the tide of the sand, plank by plank. But do they call me MacGregor the pier builder? No.

          But you fuck one bat …

      • TheTechnician27
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        18 hours ago

        Yes, it’s just that eating animals has a distinct history of causing horrible pandemics in humans. See e.g. the 1918 H1N1 pandemic which killed tens of millions and was likely started by hogs or chickens farmed in rural Kansas, swine flu which killed hundreds of thousands and whose name speaks for itself, and COVID-19 which killed millions and is well-understood to have originated in a wet market.

        Besides all the other reasons that it’s terrible, animal agriculture is a hotbed for transmitting zoonotic diseases to humans and combining existing human diseases with animal ones.

  • @JoShmoe@ani.social
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    -1610 hours ago

    I suppose its mere coincidence that patient zero was a scientist that was experimenting with covid and its potential to transmit to humans. Pure coincidence.

    • @Knock_Knock_Lemmy_In@lemmy.world
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      Note, this evidence doesn’t rule out the preliminary scenario of a scientist from the bioLab visiting the wet market and infecting/contaminating some of the animal’s there.

      our study does not rule out human-to-animal transmission, as the sampling was carried out after the human infection within the market. Thus, the possibility of potential introduction of the virus to the market through infected humans, or cold-chain products, cannot yet be ruled out.

    • @lobut@lemmy.ca
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      79 hours ago

      Yes, that’s exactly what happened. Except it didn’t and science isn’t based on your feelings on an unsubstantiated anecdote and even IF it were real, real scientists with real brains are gonna figure this out. Not you.