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We prevent the spread of disease in San Francisco by investigating cases and outbreaks, promoting vaccination, and planning for infectious disease emergencies.

Learn more about what we do.

Flu Season 2016-2017


Influenza season is here. All people age 6 months and older should get a flu vaccine every year. Most health care providers and clinics have vaccine available in their offices. Contact your doctor now to schedule your flu vaccine appointment. If you do not have a health care provider, many pharmacies and drop-in clinics have flu vaccine available.

For more information about influenza, including prevention measures, where to find a flu vaccine in San Francisco, and what to do if you are sick, visit the San Francisco Department of Public Health (SFDPH) Flu webpage.

Medical providers:

Zika Virus Information

mosquito on skin

Zika is an infectious disease caused by the Zika virus. It is most commonly transmitted to people by mosquito bites. Symptoms of Zika typically include fever, rash, joint pain, and/or red eyes. Zika is currently circulating in countries in Latin America and the Caribbean, as well as Puerto Rico. It is not circulating in the continental United States. In response to concerns regarding a potential role of Zika virus in causing birth defects, the Centers for Disease Control and Prevention (CDC) has issued a travel alert for people traveling to regions and certain countries where Zika virus transmission is ongoing.

For more information about Zika, visit our Zika Virus Information Webpage.

CDC Zika Testing Recommendations and Timeframe to Wait Before Trying to Conceive by Geographic Location.

Medical providers:

  • Read SFDPH Health Alerts for Zika Virus   
    • SFDPH Health Advisory: Zika Virus, dated March 29, 2017
    • SFDPH Health Update: Zika Virus, dated September 20, 2016
    • SFDPH Updated Health Advisory: Zika Virus, dated July 28, 2016
    • SFDPH Updated Health Advisory: Zika Virus, dated March 31, 2016
    • SFDPH Updated Health Advisory: Zika Virus, dated March 8, 2016
    • SFDPH Updated Health Advisory: Zika Virus, dated February 12, 2016
    • SFDPH Health Advisory for Zika Virus, dated January 22, 2016
  • Visit the SFDPH Zika Page for Healthcare Providers


Promoting Healthier International Travel


Many travelers head overseas without the protection of effective vaccines or medications to prevent common, debilitating, and life-threatening diseases such as malaria and viral hepatitis. The San Francisco Department of Public Health encourages international travelers to visit a travel medicine specialist prior to departure. 

If your health system does not offer a travel medicine specialist, the AITC Immunization & Travel Clinic is open to the public.




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