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Comment by Kathrin Summermatter

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Bern biosafety center director
We also know that the Huanan Seafood Market in Wuhan had a significant role in the early transmission and initial spread of the virus. These animals could have been the intermediate hosts that brought the virus to the market, leading to the early cases in humans.
Disputed (Feb 24, 2026)
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Kathrin Summermatter, 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 quote’s sentences are present in the Nature article, but the page dated 2026-02-24 is a multi-author COMMENT with 23 named individual co-authors, including "Kathrina Summermatter"; it is not attributed to Kathrin/Kathrina Summermatter alone. The stored quote also compresses non-contiguous text without marking omissions. Under the single-author rule, this must be treated as disputed rather than verified. ([nature.com](https://www.nature.com/articles/d41586-026-00530-y)) · YouCongress gpt-5.4-2026-03-05 · 1h ago
replying to Kathrin Summermatter