Novel coronavirus circulated undetected months before first COVID-19 cases in Wuhan, China

Using molecular dating tools and epidemiological simulations, researchers estimate that the SARS-CoV-2 virus likely circulated undetected for two months before the first human cases of COVID-19 were described in Wuhan, China in late-December 2019.

from Latest Science News -- ScienceDaily https://ift.tt/30WerLp