EpiStack

O-12 - High viral loads and near-universal RT-PCR positivity across infected mink (throat swab average Ct 21.7)

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Properties8
type
observation
id
O-12
statement
SARS-CoV-2 RNA was detected in conchae, lung, throat and rectal swabs of all seven mink sampled for histology; across 36 necropsied animals all 36 throat swabs and 34/36 rectal swabs were positive, with average Ct 21.7 (throat) and 31.2 (rectal), indicating high respiratory viral loads.
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orphan
source
S-27 - Oreshkova et al. 2020 — SARS-CoV-2 outbreak on Dutch mink farms
locator
Results (Virological findings)
quote
Viral RNA was detected in the conchae, lung, throat swab and rectal swab of all seven minks
data_basis

Across the 36-animal necropsy cohort, viral RNA was in “all throat swabs and 34 of the 36 rectal swabs”; average Ct 21.7 (throat) vs 31.2 (rectal) shows respiratory samples carried much higher viral loads. Confirms productive, high-titre infection of the respiratory tract, not incidental contamination.

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