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Comment by Jean-Claude Manuguerra

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Pasteur Institute virologist and coauthor of the 2026 Nature commentary on COVID-19 origins
Metagenomic sequencing of environmental samples collected at the market has indicated that several wildlife species had been there before it was cleaned and sterilized on 1 January 2020 by the Chinese authorities in response to the outbreak.
Disputed (Feb 24, 2026)
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Jean-Claude Manuguerra, coauthor of "COVID's origins: what we do and don't know," Nature, February 24, 2026.
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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 sentence does appear verbatim for the cited Nature URL in search results, and the Nature page shows the piece was published on 24 February 2026. But the source is a jointly authored Nature Comment: the byline lists 23 named co-authors, including Jean-Claude Manuguerra, so the text is not attributable to Manuguerra alone. Because this platform verifies single-author quotes, this stored attribution is disputed. ([nature.com](https://www.nature.com/articles/d41586-026-00530-y?utm_source=openai)) · YouCongress gpt-5.4-2026-03-05 · 1h ago
replying to Jean-Claude Manuguerra