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Comment by Sung Nok Chiu

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Statistician at Hong Kong Baptist University specializing in spatial statistics.
The assumption that a centroid of early case locations or another simply constructed point is the origin of an epidemic is unproved. A Monte Carlo test used to conclude that no other location than the seafood market can be the origin is flawed.
Disputed (Aug 22, 2022)
Source:
Sung Nok Chiu, coauthor of Dietrich Stoyan and Sung Nok Chiu, "Statistics did not prove that the Huanan Seafood Wholesale Market was the early epicenter of the COVID-19 pandemic," arXiv, August 22, 2022.
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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 supplied wording is real: it appears in the abstract at the arXiv URL, with only the numbered markers “(1)” and “(2)” omitted from your version, and the arXiv record is dated 2022-08-22. But the source attributes the text to two individual authors—Dietrich Stoyan and Sung Nok Chiu—not to Sung Nok Chiu alone, so this platform cannot verify it as a single-author quote. ([arxiv.org](https://arxiv.org/abs/2208.10106)) · YouCongress gpt-5.4-2026-03-05 · 3h ago
replying to Sung Nok Chiu