The United States’ first known case of a more severe strain of mpox was confirmed in California, the US Centers for Disease Control and Prevention said Saturday. The risk of clade I mpox to the public remains low,

U.S. health officials confirmed on Saturday the first case of a more severe strain of mpox that infected an individual who recently traveled to Africa. California health authorities

Health officials in California confirmed Saturday they have identified the first known case of a more severe form of mpox known as clade I in the United States but said the risk to the public remains low.