Adverse outcomes occurred in 94% of pregnancies during the first trimester.
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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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.
Recent cases in two US kids underscore close household contact as a transmission risk, as federal officials weigh declaring a national public health emergency.
Many had a single lesion or sore in their mouth or on their genitals, which is not typical.
"It is clear that the US was not prepared for an outbreak of a virus such as monkeypox."
Also, a report details a case in a child who had no known contact with a case-patient.
"Without the widespread availability of vaccine it can't be contained."
Tomorrow experts will meet to decide whether the outbreak is a public health emergency of international concern.
Over the past 5 days, monkeypox cases have doubled in New York, to 490 cases, while Washington, DC, has the highest per capita rate.
