What’s Being Done to Limit the Spread of the China Virus

The World Health Organization hasn’t declared the virus spreading from Wuhan in China an international emergency, but the effort to contain it spans the globe. The Chinese government has implemented the most ambitious quarantine in modern times, as health care workers knock on doors in search of infected people and travelers are scanned for signs of fever. The effort is complicated by a stealthy incubation period of up to two weeks — during which time the infected person may have no symptoms bu