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Mpox (Monkeypox)



Mpox information and guidance

San Mateo County Health urges at-risk individuals to protect themselves against the mpox virus. County Health strongly encourages vaccination for those populations likely to be most impacted as mpox increases in the Bay Area.


Information & Guidance

About Mpox

Mpox is a rare disease caused by infection with the mpox virus. Mpox virus is part of the same family of viruses as variola virus, the virus that causes smallpox. Mpox symptoms are similar to smallpox symptoms, but milder, and mpox is rarely fatal. Mpox is not related to chickenpox.