At eight months of follow-up, Jynneos recipients not vaccinated against smallpox had lower binding antibody concentrations than those with infection.
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.
Receive the latest infectious disease information.
The plan sets out a strategy for the next 6 months, with an estimated $135 million needed for support.
More than 25% said they had misdiagnosed someone initially.
In an update, the WHO notes widespread activity across Burundi, including in an urban area.
The patient is a 66-year-old European man who had arrived in Thailand last week from an unspecified African country.
The new funding brings US support for the outbreak response to $55 million.
As more groups offer vaccine donations, cases are spiking in Burundi, one of the newly affected countries.
The report contains temporary recommendations, such as regulatory consideration of mpox vaccine approval and planning for vaccine campaigns.
The ECDC said the risk is high for those who have close contact with affected communities and moderate for people who are contacts of imported clade 1 cases.
The patient sought medical attention in Stockholm but had recently visited Africa.
Twelve percent of animal swabs and 25% of environmental samples from 4 households tested positive for mpox DNA, but blood samples showed no viable mpox or orthopoxvirus antibodies that would indicate previous infection.
