China has reported its first cluster of mpox cases caused by the clade 1b variant. The initial case involved a foreign national with a history of residence in the Democratic Republic of the Congo (DRC), who subsequently transmitted the virus to four close contacts. These individuals exhibited mild symptoms, primarily rashes, and are currently under treatment and monitoring. No further infections have been detected among their general contacts. This marks the twelfth instance of clade 1 mpox being identified outside of Africa, with most cases linked to travel from affected African nations. The clade 1b variant is noted for its increased transmissibility among close contacts, including within households.

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