First known US case of person infected with new mpox strain reported

Person acquired clade Ib while traveling to east Africa and treated in California for mild illness, said health officials

US health officials reported Saturday the first known case of a person infected with the new mpox strain in the country.

The person acquired mpox while traveling to east Africa and was treated for a mild illness in San Mateo, California, according to health officials. The person is isolating at home and is recovering, and there is no evidence that mpox is spreading in the United States.