The Los Angeles County Department of Public Health Friday confirmed another case of a more severe strain of mpox in a local patient with no known history of travel to areas where the virus is usually found — the third such case in the county and the only known non-travel infections in the United States.

The latest patient with clade I mpox was described only as an adult who was hospitalized but is no recovering at home. County health officials on Thursday verified the agency’s first case of clade I mpox. Long Beach, which has its own health department separate from the county, announced that city’s first case on Tuesday. Thus far, no link has been found between any of the patients.

“The confirmation of a third case with no travel history raises concerns about possible local spread in Los

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