In a chikungunya genotype shift, detection of ECSA in at least 4 countries is concerning, because cocirculation enhances the risk of adaptation.
Officials have confirmed five Oropouche virus-related deaths this year, all in Brazil.
So far 40 states have reported measles cases, with 88% of infections part of 29 outbreaks.
Of two reassortant lineages, one circulates in Brazil and Cuba and the other in Peru and Ecuador. Colombia reported both lineages.
Since a large outbreak began in 2023, more case reports of severe complications of infection in pregnant women and at least two deaths have been reported.
Six Americas countries reported cases in the first 4 weeks of the year, with most of them in Brazil.
Oropouche virus activity continues its geographic expansion in the Americas region.
Hepatitis A virus and vaccinia virus showed evidence for sexual transmission but no evidence for detection in the semen.
Sierra Leone's campaign focuses on frontline responders including healthcare workers, traditional healers, community health groups, lab teams, and taxi drivers.
The case resulted in the stillbirth of the baby.
