EpiStack

O-29 - 923 Huanan-market environmental samples yielded 73 SARS-CoV-2 positives (3 isolates), with positives clustering at aquatic-cold-chain-meat vendor stalls

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Properties8
type
observation
id
O-29
statement
Of 923 environmental samples collected in the Huanan market (1 Jan-2 Mar 2020), 73 were SARS-CoV-2 positive and infectious virus was isolated from 3, revealing widespread surface contamination; 44 of the 73 positives came from stalls of 21 vendors dealing in aquatic animals (13), cold-chain products (16), poultry meat (6), seafood (6), livestock meat (5), vegetables (2) and farmed-wildlife meat (1).
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linked
source
S-34 - WHO-China joint report 2021 — animal and environmental sampling section
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Report, Environmental sampling; Summary and conclusions 5-6
quote
Of 923 environmental samples in Huanan market 73 were positive; Forty-four of those positive were from the stalls of 21 vendors
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The same China-CDC Huanan-market environmental sampling campaign later released metagenomically and re-analysed by S-35 (Crits-Christoph) and S-39 (Bloom) — hence D-1. Positives concentrate on surfaces of product-selling stalls and drains/sewers. The report frames the contamination as “compatible with introduction of the virus through infected people, infected animals or contaminated products”, and its conclusion leans to human shedding.

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