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The CDC counted 5,182 confirmed US measles cases through November 5, more than twice the 2025 total and the highest annual tally since 1991. A Pan American Health Organization review this week will examine whether the United States still meets the criteria for measles elimination.
Two children in Deir-ez-Zor have developed paralysis from VDPV1. Vaccination has begun, but surveillance and the extent of transmission remain under investigation.
WHO's November 6 bulletin records 67 confirmed yellow fever cases and 18 deaths across nine African countries through October 12. Border-area exposure and population movement raise concern, but links between the reported events have not been established.