America may be reopening, but the new coronavirus hasn’t gone away — indeed, many U.S. states have seen worrisome rises in COVID-19 cases in recent weeks. But is there a point at which these rises...

(HealthDay)—Sometime in the late fall of 2019, probably in a live-animal “wet market” in Wuhan, China, a strain of coronavirus previously harbored only by animals made the leap to humans. There...

Millions more people have been ordered to stay indoors as China battles to curb the spread of a new virus that authorities said Wednesday has already killed nearly 500 people. With more than 24,000 cases...