The U.S. is the sixth country outside of Africa to confirm a case of the strain, called clade I, since August.

The first case of a new strain of mpox in the United States has been reported in San Mateo County, officials said Saturday.

The first U.S. case of a new form of mpox that was first seen in eastern Congo has been confirmed, health officials said. The ...

There is no evidence that the strain is spreading in California or the U.S., and the risk of contracting Clade I mpox in the ...

The first known case of clade I mpox in the U.S. was recently discovered in a person in California, the Centers for Disease ...

Earlier this month, the UK Health Security Agency reported its first case of clade 1 mpox in someone who had traveled to an ...

San Mateo County health officials said on Saturday they have reported the first known case of clade I mpox in California and ...

U.S. health officials confirmed on Saturday the first case of a more severe strain of mpox that infected an individual who ...

Health officials in California have confirmed the first domestic case of a more severe strain of mpox in a traveler from ...

The unidentified patient had recently returned from Africa, where the virus has caused a deadly epidemic, health officials ...

The first case in the U.S. of a more severe strain of monkeypox was reported in San Mateo County, the California Department ...