Outbreak Watch: September 18, 2026

This week on Outbreak Watch, we’re tracking signs that Ebola transmission may be stopping in some parts of the DRC while continuing elsewhere; what still hasn’t happened with New World screwworm in the U.S.; Florida’s growing locally acquired dengue outbreak; an unusual increase in rabies exposures and preventive treatment; Pennsylvania’s four measles-associated deaths and request for CDC assistance; anthrax moving from wildlife into humans in Zambia; and a strange cluster of falciparum malaria cases near Frankfurt Airport. Plus: what should we actually watch for next to know when each of these situations has changed? Full citations, transcript, and other resources can be found in the companion blog post at the Infectious Dose website.