COVID-19 stress in Beijing outbreak could have reach from Southeast Asia: Harvard look

SHANGHAI (Reuters) – A stress of COVID-19 that has contaminated greater than 300 of us in Beijing since early June could have originated in South or Southeast Asia, in accordance with a look by Harvard University researchers. FILE PHOTO: Folks wearing face masks are viewed on the Sanlitun hunting location, following the outbreak of the coronavirus illness (COVID-19), in Beijing, China July 1, 2020. REUTERS/Tingshu Wang/File PhotoThe outbreak in Beijing has raised concerns about China’s vulnerability to a “2d wave” of infections. The virus stumbled on in Beijing circumstances is an imported stress of COVID-19, in accordance with the China Centre for Disease Alter and Prevention. The Harvard look, published on the preprint web page online medRxiv.org on Tuesday and which has serene to be peek-reviewed, took three of the SARS-CoV-2 genome sequences aloof in Beijing final month and when compared them to 7,643 samples worldwide. The three genomes confirmed the ideal resemblance to circumstances in Europe from February to May per chance well, and to circumstances in South and Southeast Asia from May per chance well to June. They were also the same to a diminutive want of infections viewed in China in March, suggesting the stress could have seemed first in China after which returned to the country three months later, the authors said. “Because the most aloof circumstances in these branches are practically exclusively from South(east) Asia, this is able to imply that the new circumstances in Beijing were re-presented by transmissions from South(east) Asia,” they wrote. The outbreak traced to Beijing’s colossal Xinfadi wholesale market on June 11 had contaminated 329 of us by the discontinue of Wednesday. Quarantine restrictions and glorious-scale testing of residents started soon after the first circumstances were known, and China also required all shipments of imported meat to be examined for COVID-19 before they’re going to whisk away its ports. The SARS-CoV-2 virus become as soon as believed to have originated in a market in the central Chinese metropolis of Wuhan in December final year and has now contaminated greater than 10 million of us and killed greater than 500,000 worldwide. On the alternative hand, a shrimp evaluation imply it can were circulating a lot earlier after crossing the species barrier from horseshoe bats native no longer handiest to southwest China, nonetheless also Laos and Myanmar. Reporting by David Stanway; Enhancing by Simon Cameron-Moore

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