The infected person exposed 17 people at 2 group homes to the disease.
The test the US Centers for Disease Control and Prevention uses to identify clade I mpox cases is 'most likely not reliable' for detection of the substrain identified in the study, the authors say.
Another mpox study today showed that dose-sparing vaccine administration of the Jynneos vaccine appeared to have worked.
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As part of the push, the CDC began sending clinicians educational materials on how to administer intradermal vaccines.
In other new developments, a preprint study found a low percentage of breakthrough infections in vaccinated people, and Israel reported an apparent infection from healthcare exposure.
Meanwhile, the CDC published a clinical and epidemiological snapshot of US cases, revealing that 42% didn't report prodrome symptoms.
The announcement paves the way for increased funds for tests, vaccines, and treatments.
Sexual contact is the likely transmission event for 92% of patients, and 98% of cases involve men who have sex with men.
A FEMA administrator and a CDC director of HIV prevention now lead the federal monkeypox response.
Also, Alaska reports its first case, leaving only 3 states without known illnesses.
Officials from the two hot spots declared the emergencies to help free up more resources and streamline the monkeypox response.
CDC today also provided a racial and symptom profile of US cases, which are quickly nearing 5,000 infections.
The head of the WHO today urged men who have sex with men to cut their risk by reducing their number of sexual partners and exposure to new partners.
