Record Dengue Cases Reported in the U.S. in 2024, Driven by Travel-Associated Infections
Record Dengue Cases Reported in the U.S. in 2024, Driven by Travel-Associated Infections
US · Published May 15, 2026
The United States experienced a significant surge in dengue cases in 2024, with a 359% increase compared to the annual average from 2010 to 2023, according to the CDC.
A total of 3,798 cases were reported, with 97.2% being travel-associated.
The rise aligns with a global increase in dengue cases, particularly in the Americas, where 13 million cases were recorded.

Why It's Important?

The increase in dengue cases poses significant public health risks, particularly for travelers to endemic regions and residents in areas with competent mosquito vectors. Approximately one-third of travelers with dengue required hospitalization, and 105 cases progressed to severe dengue, which can lead to life-threatening complications such as severe bleeding and organ impairment. Older adults, especially those aged 50–69, faced higher fatality rates due to underlying health conditions. Locally acquired cases in Florida, California, and Texas highlight the potential for dengue to establish in new areas, emphasizing the need for enhanced surveillance and vector control. The disproportionate impact on Hispanic communities underscores the importance of culturally tailored public health messaging.

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