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CNN's Dr. Sanjay Gupta says that a vaccine for the Wuhan Coronavirus is being worked on at the National Institute of Health (NIH), and that this vaccine may be expedited through normal phases of testing to be available for treatment sooner.

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CNN's Dr. Sanjay Gupta explains what public health officials are concerned about as they race to contain the spread of the Wuhan coronavirus, a new virus that has killed at least six and sickened almost 300 people in Asia.