Dengue Fever

Transmitted by Aedes aegypti and Aedes albopictus mosquitoes, which bite primarily during the day.

Symptoms

High fever, severe headache, pain behind the eyes, joint/muscle pain, rash, mild bleeding. Severe dengue can cause hemorrhage and shock.

Treatment

No specific antiviral treatment. Supportive care with hydration and pain management (avoid aspirin/NSAIDs). Hospitalization for severe cases.

Endemic regions

Tropical and subtropical regions worldwide, especially Southeast Asia, Latin America, the Caribbean, and the Pacific Islands.

Prevention & prophylaxis

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Dengvaxia (limited use)

Only for individuals aged 9–45 with prior confirmed dengue infection. Not recommended for dengue-naive travelers. Available in select endemic countries. Requires proof of previous infection.

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Daytime mosquito avoidance

Aedes mosquitoes bite primarily during the day, especially early morning and late afternoon. Use DEET or Picaridin repellent during daytime. Wear protective clothing. Use screens and air conditioning where available.

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Eliminate breeding sites

Aedes breed in small containers of standing water. Empty flower pots, water containers, and other receptacles near your accommodation if possible.