CDC Declares Level 3 Emergency for Florida Dengue Outbreak; France Confirms First Shamonda Virus Case

The CDC has issued a Level 3 emergency for a record dengue outbreak in Florida, with 745 cases reported in 2026, including 425 locally acquired infections, marking the largest U.S. outbreak since 1935. Concurrently, France confirmed its initial human case of the fly bite-transmitted Shamonda virus. These developments highlight escalating public health challenges and the emergence of new pathogen threats requiring close monitoring.