Sri Lanka has reported over 82,000 dengue cases in 2026 with 61 deaths, as the outbreak accelerates with July accounting for more than 26,000 infections. The Western Province, particularly Gampaha and Colombo districts, remains the hardest-hit region.
Sri Lanka's dengue epidemic has intensified significantly, with case numbers exceeding 82,000 as of late July 2026, according to the National Dengue Control Unit. The outbreak has claimed 61 lives, reflecting a case fatality rate of 0.07 percent. July has emerged as the most severely affected month, with over 26,000 infections recorded during the month alone—nearly a third of the year's total cases to date.
The Western Province continues to bear the heaviest burden, accounting for more than half of all cases nationwide. Within the province, Gampaha District has recorded approximately 17,400 cases, while Colombo District has reported around 16,300 cases. Both districts together represent a substantial portion of the national caseload. Other significantly affected areas include the Southern Province with over 12,000 cases, and the Central and Sabaragamuwa provinces, each recording several thousand infections.
Health authorities have identified 175 high-risk Medical Officer of Health areas during the surveillance period, with an average of 2,391 new cases reported daily. Districts such as Matara, Kandy, Kalutara, and Ratnapura have all recorded substantial infection numbers, while northern districts including Kilinochchi and Mullaitivu report comparatively lower figures.
The National Dengue Control Unit has urged residents in affected areas to intensify mosquito control measures, eliminate breeding sites, and seek immediate medical attention when symptoms appear. Officials have warned that continued vigilance and preventive action are essential to arrest the spread of the disease across the country.
