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Influenza (Flu)


Flu Facts

Learn more about the flu and how to prevent its spread. 


Flu Season Update

Click here for our weekly report.


What to Do if You are Sick

Information for people who think they may be infected with the flu


Guidance for Health Care Providers

Treatment, vaccine, reporting, lab testing, and other guidance for clinicians.


Wash Hands

Prevention Measures

Learn healthy habits that prevent the spread of flu and other infectious diseases.

School Bus

Guidance for Specific Settings

Information and guidance for schools, businesses, organizations, and shelters.



Vaccine Shot

Flu Vaccines

Flu vaccine information for the public
Flu vaccine information for health care providers                    


Materials for Print

Download flu materials for San Francisco. 



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