About 1 in 5 people infected with Zika virus become ill (i.e., develop Zika). The illness is usually mild with symptoms lasting for several days to a week. Zika virus usually remains in the blood of an infected person for a few days but it can be found longer in some people. Severe disease requiring hospitalization is uncommon. Deaths are rare.
The most common symptoms of Zika are fever, rash, joint pain, or conjunctivitis (red eyes). Other common symptoms include muscle pain and headache. The incubation period (the time from exposure to symptoms) for Zika virus disease is not known, but is likely to be a few days to a week.
About video: CNN Chief Medical Correspondent Dr. Sanjay Gupta explains the causes and symptoms of the Zika virus, and how you can protect yourself.
More info: http://www.cdc.gov/zika/index.html
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