The county of San Mateo has now had the first reported case of clade I mpox in the United States, according to the California Department of Public Health (CPDH). What is mpox? Mpox is an infectious disease that can cause a painful rash,

The first known case of a new, more severe strain of mpox in the US has been found in the Bay Area. San Mateo County Health said the patient contracted the new strain, clade I mpox categorized by having more severe illness symptoms and death,

The first case of a new strain of mpox in the United States has been reported in San Mateo County, officials said Saturday.