State and federal health officials are trying to locate everyone who came in contact with a northern California woman believed to be the first in the U.S. to contract the coronavirus with no known connection to travel abroad or other known causes.
The woman lives in Solano County, home to the Travis Air Force Base where dozens of people infected in China or on cruise ships have been treated. But Sonia Angell, director of the California Department of Public Health, said there was no evidence the woman had any connection to the base.
Gov. Gavin Newsom declined comment when asked by reporters to name the community in Solano County the woman was from but urged people to take precautions while emphasizing that the risks to public health were low. He said there was no need to declare a public health emergency.