Health officials on Saturday said they've identified the first person in the U.S. infected with an mpox strain that has recently prompted global health alerts over concerns about its spread, severity and transmissibility.

Health officials say they have confirmed the first U.S. case of a new form of mpox that was first seen in eastern Congo

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

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,

The U.S. has reported its first case of a more aggressive strain of mpox. The WHO declared the virus' spread a public health emergency in August.

Public health officials have reported the first case of clade I mpox in the United States in a person who traveled to California. Clade I mpox is different than clade II mpox, which has been circulating in Southern California,

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