Health officials say they have confirmed the first U.S. case of a new form of mpox that was first seen in eastern Congo.

The World Health Organization issued a global health emergency over the spread of the new, more lethal clade I mpox strain.

Over the weekend California reported the first known clade 1 mpox case in the United States, which involves someone who recently returned from an affected African country and sought care in San Mateo ...

The person traveled to eastern Africa and was treated in San Mateo County. California health officials said the new mpox variant isn't spreading in the state.

Health officials have confirmed a U.S. case of an aggressive new form of mpox, detected in northern California in someone who ...

The California Department of Public Health has confirmed the first known case of Clade I mpox in the U.S., following laboratory testing of a patient who recently traveled from East Africa.

Health officials in the United States are on alert following the confirmation of a severe case of mpox, a disease ...

The person had traveled to eastern Africa and was treated in San Mateo upon return, according to the California Department of ...

CDC scientists said a patient in California had tested positive for the Clade I strain, which kills up to one in ten people ...

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 ...

The California Department of Public Health has officially reported the first known case of clade I mpox, formerly known as ...