Then how’d it get here at all?
There’s a simpler, if less flashy, explanation for the emergence of a new SARS. A study, published in 2018, of four rural villages in Yunnan province located near caves containing bats known to carry coronaviruses found that 2.7 percent of those surveyed had antibodies for close relatives of SARS. Thousands, if not millions, of people are exposed to wild coronaviruses every year. Most of them aren’t dangerous, but “if you roll the dice enough times,” Goldstein said, you’ll see a bad one.