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Health authorities warn of potential dengue spike as rains approach

Sri Lankan health officials are urging heightened vigilance against dengue fever as the country enters a season of increased rainfall, conditions that favour mosquito breeding.

LSN Sri Lanka · 15 September 2026

Health authorities warn of potential dengue spike as rains approach

The National Dengue Control Unit has cautioned the public to prepare for a possible resurgence of dengue cases in the coming months, citing the anticipated onset of heavy rains as a significant risk factor.

According to health authorities, the seasonal rainfall creates ideal breeding conditions for Aedes mosquitoes, the primary vectors responsible for transmitting the dengue virus. Such environmental conditions have historically correlated with spikes in dengue infections across the island.

Health officials are emphasizing the importance of community-level preventive measures, including the removal of stagnant water from households, proper waste management, and the use of protective clothing and insect repellents. Residents are being advised to remain vigilant for dengue symptoms, which include fever, headache, muscle and joint pain, and rash.

The warning comes as part of a broader public health strategy to minimize dengue transmission during the high-risk monsoon season. Authorities have indicated that continued surveillance and early detection of cases will be critical in containing any potential outbreak.

Citizens are encouraged to seek immediate medical attention if they develop symptoms consistent with dengue and to report any suspected cases to health authorities.