Скачать или смотреть New Evidence: Live Animals at Huanan Market at Early COVID-19 Pandemic

This video examines new genetic evidence published in the journal Cell linking live animals and viruses to the Huanan Seafood Wholesale Market at the start of the COVID-19 pandemic. Researchers recovered near-complete SARS-CoV-2 genomes, animal viruses, and mitochondrial DNA from samples collected at the market in January 2020. The evidence is consistent with a zoonotic origin of SARS-CoV-2 at this location, with the common ancestor of the virus at the market matching the common ancestor of the global pandemic. Raccoon dogs, civets, bamboo rats, and other wildlife species were detected, several of which were confirmed to be susceptible to SARS-CoV-2. Further, the mitochondrial genotypes of raccoon dogs suggest they originated in central or southern China, consistent with a viral transmission chain arising from a bat reservoir south of Wuhan.
The scientific article presents several limitations. The samples can’t directly link viruses to their hosts. In addition, it’s impossible to know the exact timing of viral shedding in the market. Further, although sampling occurred in January 2020, it’s possible that the virus was deposited weeks prior.

🔍 Source:
Genetic tracing of market wildlife and viruses at the epicenter of the COVID-19 pandemic

Author: Alexander Crits-Christoph,Joshua I. Levy,Jonathan E. Pekar,Stephen A. Goldstein,Reema Singh,Zach Hensel,Karthik Gangavarapu,Matthew B. Rogers,Niema Moshiri,Robert F. Garry,Edward C. Holmes,Marion P.G. Koopmans,Philippe Lemey,Thomas P. Peacock et al.
Publication: Cell
Publisher: Elsevier
Date: 19 September 2024

https://www.cell.com/cell/fulltext/S0...

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