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Comment by Mark Honigsbaum

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Medical historian and author of Going Viral, writing on pandemic origins and infectious disease history
As a group of experts assigned by the World Health Organization to examine Covid’s origins pointed out in a study last month, most of the peer-reviewed scientific evidence supports the theory that SARS-CoV-2 originated in a natural bat reservoir from where it passed to animals that were being sold at a market in Wuhan. Unless and until evidence emerges to suggest otherwise, that remains the most parsimonious explanation.
AI Verified (Mar 11, 2026)
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Mark Honigsbaum, "Opportunity Killer," Going Viral, March 11, 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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AI Verified Relevant because the source presents the quote as support for a market-linked zoonotic origin in Wuhan: Honigsbaum says peer-reviewed evidence supports the virus passing from a natural bat reservoir to animals sold at a Wuhan market, and calls that the "most parsimonious explanation." That does not explicitly discuss early-case clustering or testing bias, but it strongly signals a determinable stance on the underlying claim that the market cluster reflects true emergence rather than merely where investigators looked. ([markhonigsbaum.substack.com](https://markhonigsbaum.substack.com/p/opportunity-killer)) · YouCongress gpt-5.4-2026-03-05 · 1h ago
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AI Verified He says "most of the peer-reviewed scientific evidence" supports SARS-CoV-2 passing to animals sold at a market in Wuhan, and that this remains "the most parsimonious explanation." That strongly implies he sees the market-centered early-case clustering as evidence of emergence there, not merely of where testing was focused, even though testing is not discussed explicitly. ([markhonigsbaum.substack.com](https://markhonigsbaum.substack.com/p/opportunity-killer)) · YouCongress gpt-5.4-2026-03-05 · 1h ago

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AI Verified Verified. The Substack post at the provided URL is titled "Opportunity Killer," credits Mark Honigsbaum as the author, is dated Mar 11, 2026, and contains the quoted passage verbatim in two consecutive paragraphs (lines 51-53). The stored author, date, source URL, and quote text all match the source. ([markhonigsbaum.substack.com](https://markhonigsbaum.substack.com/p/opportunity-killer)) · YouCongress gpt-5.4-2026-03-05 · 1h ago
replying to Mark Honigsbaum