New coronavirus case escalates US response

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Donald Trump, Mike Pence

President Donald Trump with Vice President Mike Pence, left, and members of the president’s coronavirus task force speaks during a news conference at the Brady press briefing room of the White House, Wednesday, Feb. 26, 2020, in Washington. (AP Photo/Manuel Balce Ceneta)

VACAVILLE, Calif. (AP) — Public health officials were retracing the steps of a Northern California woman on Thursday believed to be the first person in the U.S. to contract the highly contagious coronavirus without traveling internationally or being in close contact with anyone who had it.

The diagnosis, confirmed Wednesday, marks an escalation of the worldwide outbreakin the U.S. because it means the virus could now spread beyond the reach of quarantines and other preventative measures. But state health officials were quick to reassure the public on Thursday that such a scenario was inevitable and the risk of widespread transmission remained low.

Solano County Public Health Officer Dr. Bela Matyas said public health officials have identified dozens of people — but less than 100 — who had close contact with the woman. Those people are quarantined in their homes. A few have shown symptoms and are in isolation, Matyas said.

The case raised questions about how quickly public health officials are moving to diagnose and treat new cases. State and federal health officials disagreed about when doctors first requested the woman be tested.

Doctors at the UC Davis Medical Center said they asked the U.S. Centers for Disease Control and Prevention to test the woman for the virus on Feb. 19. But they said the CDC did not approve the testing until Sunday “since the patient did not fit the existing CDC criteria” for the virus, according to a memo posted to the hospital’s website.

CDC spokesman Richard Quartarone said a preliminary review of agency records indicates the agency did not know about the woman until Sunday, the same day the woman was first tested.

Quartarone said the agency is concerned about reports of delayed testing and is “investigating this carefully.” He said the CDC can test about 400 specimens per day.

California Gov. Gavin Newsom said the state was limited in how many people it could test because it only had 200 testing kits. But he said federal officials have promised to send many more in the coming days.

“I’m not going to politicize this moment And I’m not going to point fingers,” Newsom said. “We have had a very strong working relationship with the (Trump) administration.”

Investigators were focused on tracing the woman’s movements to figure out how she got the virus and who else she may have unwittingly infected. The woman first sought treatment at NorthBay VacaValley Hospital in Vacaville, a city of more than 100,000 people about 59 miles (95 kilometers) from San Francisco.

Ten experts from the CDC arrived Thursday and were heading to Vacaville to help with the search, said Dr. James Watt, interim state epidemiologist at the California Department of Public Health.

With the patient as ground zero, they are interviewing immediate family members. Then, as with any similar case, they are expanding the net to include more distant family members who may have been in contact, social gatherings like church that the patient may have attended, and any possible time spent at work or events like a concert.

They are not too worried, for now, about casual contact, because federal officials think the coronavirus is spread only through “close contact, being within six feet of somebody for what they’re calling a prolonged period of time,” said Watt, who was the state’s deputy epidemiologist for 10 years before he took the interim post two months ago.

“That’s more than casual contact at a grocery store,” Watt said. “That’s where our focus is going to be. … What was the pattern of disease transmission?”

All of the 59 other cases in the U.S. have been for people who had traveled abroad or had close contact with others who traveled.

Earlier U.S. cases included 14 in people who returned from outbreak areas in China, or their spouses; three people who were evacuated from the central China city of Wuhan; and 42 American passengers on the Diamond Princess cruise ship who were evacuated by the federal government to the U.S. from where the ship was docked in Japan.

Some of those people have been treated at Travis Air Force Base, located in Solano County where the Northern California woman lives. But there is no evidence the woman has any connection to the base, said Sonia Angell, director of the California Department of Public Health.

The global count of those sickened by the virus hovered Thursday around 82,000, with 433 new cases reported in China and another 505 in South Korea.

The new virus is a member of the coronavirus family that can cause colds or more serious illnesses such as SARS and MERS.

The virus can cause fever, coughing, wheezing and pneumonia. Health officials think it spreads mainly from droplets when an infected person coughs or sneezes, similar to how the flu spreads.

Officials are advising people to take steps to avoid infection with coronavirus or other respiratory infections like colds or the flu, including washing hands with soap and water and avoiding close contact with people who are sick.

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Beam reported from Sacramento, California.

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