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Covid-19 circulated months before the first detected case in China: study

Mar 19, 2021 19:12 IST | By PTI

The novel coronavirus was likely circulating undetected for nearly two months before the first human cases were described in china's Wuhan in late-December 2019, according to a study.

The research, published in the journal Science, used molecular dating tools and epidemiological simulations to date the emergence of the virus to as early as October 2019.

The researchers have put an upper limit of mid-October 2019 for when SARS-CoV-2 started circulating in the Hubei province. 

Covid-19 circulated months before the first detected case in China: study

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