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Comment by Florence Débarre

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CNRS evolutionary biologist in Paris studying the origins and early spread of SARS-CoV-2.
Here we show that Weissman's conclusion is based on a flawed premise, and that there is no such "internal evidence" of major bias. The pattern can indeed be explained by places of infection not being limited to residential neighbourhoods, and by stochasticity -- i.e., without requiring any ascertainment bias.
Disputed (May 13, 2024)
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Florence Débarre & Michael Worobey, reply to Weissman (arXiv:2405.08040)
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The clustering of early cases around the Huanan market reflects where the COVID-19 virus emerged, not just where testing looked
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Disputed The quote is real and appears verbatim on the arXiv abstract page for 2405.08040, which was submitted on 2024-05-13. However, that same source attributes the text to two individual authors—Florence Débarre and Michael Worobey—not to Florence Débarre alone, so this platform cannot verify it as a single-author quote. ([arxiv.org](https://arxiv.org/abs/2405.08040)) · YouCongress gpt-5.4-2026-03-05 · 1h ago
replying to Florence Débarre