More than a year after Covid-19 touched off the worst pandemic in more than a century, scientists have yet to determine its origins. Initially, cases were tied to a fresh food market and possibly the wildlife sold there. What’s known about the earliest Covid-19 cases? What role did that food market in Wuhan play? Of Covid-19 cases linked to the market, the first person became unwell on Dec. 12, 2019.

Source: Mint May 27, 2021 03:33 UTC