The Chinese national recently spent time in Wuhan, the city which is believed to be the source of the deadly SARS-like virus, which has infected over 1,200 people and killed at least 41.
The nationwide death toll rose to 56 after 15 new deaths, a lot of them in Hubei.
The California case was initially confirmed by the Saturday by the federal Centers for Disease Control and Prevention, which contacted Orange County officials. "But, if there are other people that were exposed to them, then we will check in with those people and monitor them for symptoms, and hopefully we won't see any more spread".
"There are more than 100 Ethiopian students who are studying in Wuhan, and 300 in Hubei province", said the student, who spoke on condition of anonymity for his safety.
A woman wearing a face mask walks out of a supermarket in Beijing on Sunday.
According to Xinhua, ten confirmed cases had been reported in Hong Kong and Macao special administrative regions and Taiwan, with five in Hong Kong, two in Macao and three in Taiwan. Small numbers of cases have been found in Thailand, Japan, South Korea, France, the US, Vietnam, Singapore, Malaysia, Nepal and Australia.
On Sunday, China confirmed 1,975 cases of patients infected with the new coronavirus as of January 25, while the death toll from the virus has risen to 56, state broadcaster CCTV reported.
The U.S. Consulate in Wuhan will evacuate its personnel and some private citizens aboard a charter flight on Tuesday.
The streets of stricken Wuhan were even more deserted on Sunday after new restrictions went into effect banning most cars from roads in the metropolis of 11 million.
Passengers arrive in Sydney on a flight from China on Thursday
Despite her fears and perceived lack of information about Wuhan coronavirus, she does not plan to leave the city in an evacuation flight organized by the State Department.
China's foreign ministry said in a statement issued on Saturday it is making arrangements and providing assistance to the United States government to facilitate the evacuation.
At the end of Saturday in China, there were 1975 cases and a further 2,684 suspected cases, China's National Health Commission said. The city will assign 6,000 taxis to neighborhoods to help people get around if they need to.
Transport bans have been placed in many other cities in Hubei, affecting some 56 million people.
Applications of Chinese citizens from Chinese provinces other than Hubei "on account of tourism, social exchanges, professional exchanges, aesthetic medical checkups" will be temporarily suspended. He was hospitalized on January 18 and died a week later.
Medical staff will be sent out shortly, adding that authorities are also coordinating supplies urgently needed to control the outbreak, he said.
The new virus comes from a large family of what are known as coronaviruses, some causing nothing worse than a cold.
The virus can cause fever, coughing, wheezing and pneumonia. It can worsen to pneumonia, which can be fatal.
Reflecting the concerns raised by the coronavirus, airports across South Korea have set up checkpoints to screen passengers from China and other countries for signs of illness, with local authorities accelerating quarantine efforts to contain the virus as people visit relatives at home or travel overseas.
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