US confirms first case of more aggressive mpox strain

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 identified the first known case of clade I mpox in the U.S. through laboratory testing. The person was treated in San Mateo County, according to the California Department of Public Health (CDPH). The individual is at home and recovering. 

“People who had close contact with this individual are being contacted by public health workers...