First US case of clade I mpox variant diagnosed in San Mateo County, patient isolating

A San Mateo County resident was diagnosed with the first known case in the United States of a certain variation of mpox, known as clade I mpox, the county’s health department and California Department of Public Health said on Saturday. 

The CDPH and San Mateo County Health said in dual press releases that the person was isolating at home with mild illness and recovering. It said health officials did not believe clade I mpox was spreading in the community and close contacts were being notified with help from the U.S. Centers for Disease Control and Prevention.