Dengue
Understand dengue through a concise source-checked overview, clear reporting context and direct links to official public-health information.
What it is
Dengue is a viral disease associated with four closely related dengue viruses. People can be infected more than once during their lives.
Transmission and recognition
Transmission to people mainly occurs through bites from infected Aedes mosquitoes. Fever with aches, nausea, vomiting or rash can occur. Illness can be severe, and clinical assessment is important when symptoms or warning signs develop.
Prevention and care context
Reducing mosquito bites is an important preventive measure. Vaccine availability and eligibility are specific to the setting and person; a general reference page cannot establish whether a vaccine is appropriate for an individual.
How to read outbreak reporting
A dengue notice does not establish the same risk throughout a whole country. Season, local transmission, surveillance coverage and travel history matter. This page links disease context to source reports without converting reports into an individual risk score.
Sources & Verification
AI-assisted research and writing. Source checks do not represent clinical review.
- CDC: Dengue Verify original (opens in a new tab)
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