Diseases and Conditions

Zika virus


As many as 4 out of 5 people infected with the Zika virus have no signs or symptoms. When symptoms do occur, they usually begin two to seven days after a person is bitten by an infected mosquito. Signs and symptoms of the Zika virus most commonly include:

  • Mild fever
  • Rash
  • Joint or muscle pain

Other signs and symptoms may include:

  • Headache
  • Red eyes (conjunctivitis)

Most people recover fully, with symptoms resolving in about a week.

When to see a doctor

See your doctor if you think you or a family member may have the Zika virus, especially if you have recently traveled to an area where there's an ongoing outbreak. The Centers for Disease Control and Prevention (CDC) has blood tests to look for the Zika virus or similar diseases such as dengue or chikungunya viruses, which are spread by the same type of mosquitoes.