COVID-19 At-Home Antigen Test Kits

When to Use At-Home Tests

COVID-19 testing is not required. SFDPH recommends use of at-home tests when:

  • Returning to schools if exhibiting symptoms
  • Returning to school from isolation on or after 5 days, and 
  • Screening after holidays, even if you are not symptomatic
  • If your student gets sick with symptoms (like cough and fever), stay home and use your tests to see if it is COVID-19.
  • If your student is exposed to someone with COVID-19, use your tests within 3-5 days after last exposure. 

You can also access testing at locations throughout San Francisco, which includes your primary health care provider and community and public testing sites. 

For more information about COVID-19 testing, or to find a testing site near you, visit or call SFDPH’s COVID Resource Center at 628-652-2700.

Additional Resources

This page was last updated on August 29, 2023