Alabama braces for dengue as CDC sounds alarm on record global cases

The Centers for Disease Control and Prevention issued a Health Alert Network advisory in 2024 warning of dramatically increased dengue virus infections across the United States, with global incidence reaching record levels for that calendar year. While Alabama has not reported widespread local transmission, the state's Department of Public Health emphasizes that all documented Alabama dengue cases to date have involved residents who contracted the virus while traveling outside the state before returning home.

Dengue, transmitted by the Aedes mosquito species, presents particular concern as public health officials expect the virus to appear in more temperate regions, including the southern-most portions of the United States. The disease causes fever, thrombocytopenia, leukopenia, aches, pains, and sometimes rash, and can progress to dengue hemorrhagic fever—a potentially fatal form if unrecognized and untreated. Physicians have been urged to maintain high suspicion for dengue among patients presenting with fever and recent travel to endemic areas within 14 days of illness onset.

Alabama Department of Public Health officials stress prevention through EPA-approved mosquito repellents, wearing loose-fitting long-sleeve clothing, using air conditioning and window screens, and eliminating standing water where mosquitoes breed. The CDC has also recommended that healthcare providers order appropriate diagnostic tests—including RT-PCR, IgM antibody tests, or NS1 antigen tests—and report all suspected cases to public health authorities.

Residents who develop symptoms including fever, severe headache, muscle and joint pain, or rash should seek immediate medical care, particularly if they have traveled to dengue-endemic areas. The Alabama Department of Public Health maintains an interactive CDC map showing confirmed dengue presence worldwide and continues surveillance for any locally acquired cases in the state.