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There's lots of information on the CDC website.
CDC, 2019 Novel Coronavirus: Frequently Asked Questions and Answers: Here are a few:
Q: What is the source of 2019 Novel Coronavirus?
A: Public health officials and partners are working hard to identify the source of the 2019-nCoV. Coronaviruses are a large family of viruses, some causing illness in people and others that circulate among animals, including camels, cats and bats. Early on, many of the patients in the outbreak in Wuhan, China reportedly had some link to a large seafood and animal market, suggesting the virus likely emerged from an animal source. Analysis of the genetic tree of this virus is ongoing to know the specific source of the virus. SARS, another coronavirus that emerged to infect people, came from civit cats, while MERS, another coronavirus that emerged to infect people, came from camels.
Q: Is there a vaccine?
A: Currently, there is no vaccine available to protect against 2019-nCoV.
Q: What are the treatments?
A: There is no specific antiviral treatment recommended for 2019-nCoV infection. People infected with 2019-nCoV should receive supportive care to help relieve symptoms.
Learn about 2019-nCoV Treatment.
Q: Should I be tested for 2019-nCoV?
A: If you develop a fever1 and symptoms of respiratory illness, such as cough or shortness of breath, within 14 days after travel from Wuhan, China, you should call ahead to a healthcare provider and mention your recent travel or close contact. If you have had close contact2 with someone showing these symptoms who has recently traveled from this area, you should call ahead to a healthcare provider and mention your recent travel or close contact. Your healthcare provider will work with your state’s public health department and CDC to determine if you need to be tested for 2019-nCoV.
Q: How do you test a person for 2019-nCoV?
A: At this time, diagnostic testing for 2019-nCoV can be conducted only at CDC.