What is Zika virus?

Also known as: Zika, Zika virus disease.

Zika virus is an illness caused by infected mosquitoes. It occurs mostly in tropical areas but has recently made some appearances in the United States. It often causes no symptoms or mild symptoms but can be dangerous if pregnant women become infected.

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Reviewed by: Carolina Sanchez-Vegas, MD

This page was last updated on: 1/29/2019 3:21:13 PM