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Dengue viruses are spread by the bites of infected Aedes species mosquitoes. In the United States, public health authorities in Puerto Rico and US Virgin Islands have declared dengue outbreaks. Local transmission of dengue has also been reported in 2024 in California, Florida, and Texas.
About facts and statistics related to dengue cases reported in the United States. Areas with Risk About areas around the world with risk of dengue and resources for travelers.
Current Dengue Outbreak How It Spreads Prevention Treatment Areas with Risk Dengue in the United States View all
Learn about dengue viruses, how dengue spreads, how to prevent dengue, and the areas with risk of dengue. View All
Seek medical care if you have a fever or have dengue symptoms and live in or traveled to an area with dengue outbreaks. If you plan international travel to a an area with frequent or continuous dengue transmission, protect yourself from mosquito bites during and after your trip. For More Information . Healthcare Providers
Most dengue cases reported in the 49 continental US states occur in travelers infected in areas with risk of dengue. Because of the types of mosquitoes that spread dengue are common throughout many areas of the United States, local spread of dengue is possible.
Almost half of the world's population, about 4 billion people, live in areas with a risk of dengue. Dengue is often a leading cause of febrile illness in areas with risk. Dengue outbreaks are reported frequently in these regions, including many popular tourist destinations in: the Caribbean. Central America. South America. Southeast Asia ...
All four dengue viruses are spread to people primarily through the bite of an infected Aedes species mosquito. A dengue vaccine is recommended for U.S. territories and freely associated states. Protect yourself from dengue by avoiding mosquito bites.
CDC supports laboratory testing and research to help identify and prevent dengue. Dengue cases have risen at an alarming rate in recent years. In 2023, there were more than 5 million cases reported from 80 countries, with at least 23 countries reporting dengue outbreaks.
About 1 in 20 people who get sick with dengue will develop severe dengue. Severe dengue can result in shock, internal bleeding, and death. Immediately go to a local clinic or emergency room if you or a family member has any of the following symptoms: