H-19 - The Huanan-market early-case clustering is largely an ascertainment-bias artifact, not evidence of a market spillover
Properties8
type
hypothesis
id
H-19
state
active
question
Does the Huanan-market clustering of early cases indicate the true spillover location?
statement
Weissman argues the concentration of early recognized cases around the Huanan Seafood Market reflects biased case-finding (testing concentrated on market-linked people) rather than the true origin, so the market clustering gives little support to a market spillover; several independent strands (phylogenetic ordering, animal-DNA non-correlation, Weibo geolocation near WIV/CDC, Levin's spatial reanalysis) point away from the market.