I’ve worked on CoV vaccines for a decade, from all I’ve seen: still no publicly available evidence convincing me COVID19 has human origins GOF or lab leak. Doesn’t mean it didn’t happen but so called “smoking guns” bats in Hubei, furin cleavage site still point to natural originshttps://twitter.com/gorskon/status/1401844491494043648 …
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If China was planning to weaponize it, wouldn't they have used this version?https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6178114/ …
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And it's just not hard for Viri to evolve. It really isn't.
End of conversation
New conversation -
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What about cryptic transmission prior to Wuhan? There’s a lot of evidence for that. Even prior to Fall 2019? Estimates of emergence in humans use most recent common ancestor of samples sequenced - but there’s no reason tMRCA has to be temporally linked to the true index case.https://twitter.com/SixandLaura/status/1399033761040306180 …
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