DRR

Dengue Fever risk in Colombo

Prevention Guide

Dengue Fever Prevention Guide for Colombo (Risk Score: 71/100) Dengue fever is a mosquito-borne viral infection caused by the dengue virus, transmitted primarily by Aedes aegypti mosquitoes. Symptoms include high fever, severe headache, joint and muscle pain, rash, and in severe cases, hemorrhagic complications. Specific Local Risk Factors in Colombo: - High mosquito density due to tropical climate and monsoon seasons (May-July and October-January) - Urban environment with abundant breeding sites in discarded tires, water containers, and construction sites - Overcrowded residential areas facilitating rapid transmission - Inadequate waste management in some neighborhoods - Lack of consistent vector control measures Actionable Prevention Steps: 1. Eliminate standing water around your home weekly. Check flower pots, gutters, water storage containers, and discarded items that collect rainwater. Aedes mosquitoes breed in clean, stagnant water in small containers. 2. Use mosquito repellent containing DEET, picaridin, or oil of lemon eucalyptus, especially during early morning and late afternoon when Aedes mosquitoes are most active. 3. Install window screens and use bed nets, particularly for children and during daytime resting hours when these mosquitoes bite. 4. Wear long-sleeved clothing and pants during peak mosquito activity periods, using light-colored fabrics that are less attractive to mosquitoes. 5. Support community efforts by reporting potential breeding sites to local health authorities and participating in neighborhood clean-up campaigns, especially before monsoon seasons. Seek immediate medical attention if you experience high fever with severe headache, pain behind eyes, joint pain, or bleeding, as early detection prevents severe complications.

Last updated: Sat, 16 May 2026 13:18:16 GMT

πŸ“Š Data sourced from WHO/CDC

⚠️ This is an AI-assisted analysis for informational purposes only

βœ… Expert-reviewed by Global Disease Risk Radar Editorial Team