SARS-CoV-2 could be lurking in animal hidey-holes

In the field of epidemiology, a “spillover” is a virus that has made the leap from one host species to another. The spillovers of most concern to people are those from other animals to Homo sapiens. These may then go on to create “zoonotic” human diseases—of which covid-19 is believed to be one (the original…

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