ABC News medical contributor Dr. Alok Patel discusses the CDC alert, as risk to the public remains low, according to the Centers for Disease Control and Prevention.

The first case in the U.S. of a more severe strain of mpox 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,