The BBC's online health editor on what we know about the virus
The Chinese government has accused the US of causing "panic" in its response to the deadly coronavirus outbreak.
It follows the US decision to declare a public health emergency and deny entry to foreign nationals who had visited China in the past two weeks.
There are more than 17,000 confirmed cases of the virus in China. Some 361 people have died there.
Outside China, there are more than 150 confirmed cases of the virus - and one death, in the Philippines.
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