First known U.S. case of new type of mpox found in San Mateo County

San Mateo County health officials have announced the nation’s first known case of a severe form of mpox that has fueled an outbreak of the disease across Eastern and Central Africa.

The county’s health department said Saturday they are working with state and local health officials in responding to the case of clade I mpox, which a person in the county contracted while traveling to Africa. The person appeared to have “mild” symptoms, and is isolating and recovering at home, the health agency said.