Zika virus: Signs, symptoms and how to protect yourself

(AP Photo/Leo Correa)

(CNN) – The CDC warns of an outbreak of the Zika virus.  Officials say there have been 31 documented cases in the U.S. related to travel, meaning people contracted the virus in other countries and brought it back to the United States.

CNN chief medical correspondent Dr. Sanjay Gupta takes a look at some of the signs and symptoms and at how people can protect themselves from the virus.

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