New coronavirus case in California is second of unknown origin
An older adult woman from California is the second case of unknown origin of the novel coronavirus, health officials in Santa Clara County said Friday.
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(CNN)An older adult woman from California is the second case of unknown origin of the
novel coronavirus, health officials in Santa Clara County said Friday.
The patient didn't have any relevant travel history, exposure to another known patient and wasn't one of the evacuees repatriated from China, said Dr. Sara Cody, director of the county's public health department.
The patient is a resident of the county, officials said.
"This new case indicates that there is evidence of community transmission, but the extent is still not clear," Cody said. "I understand this may be concerning to hear, but this is what we have been preparing for. Now we need to start taking additional actions to slow down the spread of the disease."
The woman had been hospitalized for a respiratory illness and her infectious disease doctor on Wednesday requested a coronavirus test. The case is not related to two others in the county, officials said.

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"The virus is here present at some level, but we still don't know to what degree," Cody told reporters.
The CDC this week updated its testing criteria after a
Solano County, California, woman wasn't tested for days after being hospitalized. The patient is in serious condition and has been intubated, according to California Rep. John Garamendi.
The Solano County case has puzzled health officials, who say they have not been able to trace where she contracted the virus.
"This does appear to be a person who genuinely did acquire their illness in the community," Solano County Public Health Officer Dr. Bela Matyas said in a news conference Thursday.
Solano County and Santa Clara County are about 90 miles apart. The new patient has not traveled to Solano County, officials said.
The Solano County patient, who is being treated at UC Davis Medical Center, could be the first instance of "community spread" of the virus, the CDC said Wednesday.
The patient was transferred to UC Davis from a Northern California hospital last Wednesday but wasn't tested until Sunday, after doctors at UC Davis persisted in the request. Both hospitals said there was no initial testing administered because the patient didn't fit existing CDC criteria for coronavirus.

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That guidance has now changed, CDC Director Dr. Robert Redfield said.
"As soon as that case was recognized, we met and we revised our case definition for persons under investigation," Redfield said. "Today, that has been posted (to the CDC website) along with a new health advisory that the recommendation should be when a clinician or individual suspects coronavirus, then we should be able to get a test for coronavirus."
There are 62 other confirmed cases of coronavirus in the US, according to the US Centers for Disease Control and Prevention.
• 44 are former passengers on the Diamond Princess cruise ship that docked in Japan after an outbreak and quarantine. Two of those cases were newly reported Friday.
• 3 are
Americans recently repatriated from Wuhan, China, the center of the outbreak
• 1 patient at UC Davis Medical Center contracted the illness through unknown means
• Most of the other 14 patients had recently been to China or are spouses of someone who recently returned from China
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