Zika Virus Disease Updated Advisory

Zika virus transmission continues in Latin America, the Caribbean, Oceania/Pacific Islands and Cape Verde in Africa. New information on Zika infection continues to emerge and guidelines for Zika virus testing have been revised, including the addition of more testing capabilities of the California Department of Public Health (CDPH) Viral and Rickettsial Disease Laboratory (VRDL). This health advisory summarizes key updates since the last Zika health advisory on 2/11/16 and includes new information and guidance for Zika virus testing in Alameda County. As of 3/11/16, one Alameda County resident has been confirmed by laboratory testing to have had travel-associated Zika virus infection. Health care providers should consider testing for Zika virus infection in the following persons  with a potential Zika virus exposure:

  • Zika Virus symptoms within two weeks of exposure
  • Asymptomatic pregnant women
  • Infants born to a mother with a potential Zika virus exposure
  • Patients with Guillain-Barre Syndrome

Potential Zika virus exposure is defined as (a) travel to areas with active Zika Virus transmission in the 2 weeks before symptoms onset; or (b) condomless sexual contact with a male partner who traveled to an area of active Zika virus transmission and had symptoms of Zika disease during travel or within 2 weeks of return.

For travelers:

For health care providers:


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