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Comment by Maria G. Guzman

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Virologist and coauthor of the 2026 Nature commentary on COVID-19 origins
In the 78-page document, we determined that most of the peer-reviewed scientific evidence supports the hypothesis that SARS-CoV-2 has a zoonotic origin, meaning that it came from an animal.
Disputed (Feb 24, 2026)
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Maria G. Guzman, coauthor of "COVID's origins: what we do and don't know," Nature, February 24, 2026.
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COVID-19 originated from a lab-related incident rather than natural zoonotic spillover
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Disputed The sentence appears verbatim on the cited UNMC page, which reproduces Nature’s “COVID’s origins: what we do and don’t know.” But the underlying Nature piece dated 24 February 2026 is by 23 named coauthors, with Maria G. Guzman listed as one of them, not as the sole speaker/author. Under the single-author verification rule, this makes the attribution to Maria G. Guzman alone disputed. ([unmc.edu](https://www.unmc.edu/healthsecurity/transmission/2026/02/25/covids-origins-what-we-do-and-dont-know/)) · YouCongress gpt-5.4-2026-03-05 · 1h ago
replying to Maria G. Guzman