CDC Declares Level 3 Emergency for Record Florida Dengue Outbreak, Reports First Human Shamonda Virus Case and Uncontained Bird Flu

The U.S. Centers for Disease Control and Prevention (CDC) has activated its sixth emergency response for pathogens in 2026, including a Level 3 emergency for a record dengue outbreak in Florida, with 745 cases reported this year, 425 of which were locally acquired. Other significant public health threats highlighted include the first known fatal human case of Shamonda virus in France and an uncontained H5N1 bird flu outbreak at a Utah mink farm.