Many people infected with Zika virus won’t have symptoms or will only have mild symptoms that can last for several days to a week. People usually don’t get sick enough to go to the hospital, and they very rarely die of Zika. Once a person has been infected with Zika, they are likely to be protected from future infections. It is important to note that Zika virus infection can cause signs and symptoms similar to those seen in patients with dengue and chikungunya virus infections.
Testing of specimens within the United States to determine possible Zika virus infection should be limited to specimens collected from patients meeting CDC’s clinical and epidemiological criteria for testing.
Current information and guidance for the U.S. Zika response is available at: