The Zika (ZEE'-kuh) virus is a mosquito-borne viral infection that primarily occurs in tropical and subtropical areas of the world. Most people infected with the Zika virus have no signs and symptoms, while others report mild fever, rash and muscle pain. Other signs and symptoms may include headache, red eyes (conjunctivitis) and a general feeling of discomfort. Zika virus is also called Zika or Zika virus disease.
Zika virus infections during pregnancy have been linked to miscarriage and can cause microcephaly, a potentially fatal congenital brain condition. The Zika virus also may cause other neurological disorders such as Guillain-Barre syndrome.
Researchers are working on a Zika virus vaccine. For now the best prevention is to prevent mosquito bites and reduce mosquito habitats.