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Dengue viruses are spread to people through mosquito bites. A person can be infected with dengue multiple times in their life. Each year, up to 400 million people are infected by a dengue virus.
About how dengue spreads through mosquito bites and other routes. Dengue Learn about dengue viruses, how dengue spreads, how to prevent dengue, and the areas with risk of dengue.
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 ...
The most common symptom of dengue is fever with any of the following: Aches and pains (eye pain, typically behind the eyes, muscle, joint, or bone pain) Nausea, vomiting
Dengue viruses are usually spread to people through the bites of infected Aedes species mosquitoes. A person infected with dengue during pregnancy can pass the virus to their fetus. Rarely, dengue can be spread through other routes.
Clinicians should consider dengue in patients with fever, who live in or recently traveled to areas with risk of dengue. In addition to fever, common dengue symptoms include severe headache, retro-orbital pain, myalgia and arthralgia, macular or maculopapular rash.
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.
The vaccine prevents dengue caused by all four dengue virus serotypes. Since 2022, Dengvaxia has been available for use in children and adolescents 9–16 years old who have laboratory-confirmed previous dengue virus infection and are living in an area where dengue is endemic.
Dengue is a viral disease that can cause severe illness in some people. Reported dengue cases have doubled in 2024. It's spread by mosquitoes, so protect yourself by preventing insect bites and dumping out standing water where mosquitoes lay eggs.
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.