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Sri Lanka Dengue Cases Rise to Over 33,800, Deaths Remain at 19
The Pulse
HealthEnvironmentGeneralHOTTuesday, May 12, 2026

Sri Lanka Dengue Cases Rise to Over 33,800, Deaths Remain at 19

TLDR

  • Sri Lanka: 33,864 dengue cases, 19 deaths in 2026.

  • Western Province leads cases; Sabaragamuwa, Southern provinces also high.

  • 72 high-risk MOH divisions identified amidst rainy season.

  • Special mosquito control program planned for June.

Sri Lanka has recorded 27,754 dengue cases and 14 deaths so far in 2026, according to the National Dengue Control Unit (NDCU). The highest numbers of infections are reported from districts including Colombo, Gampaha, Matara, Galle, Ratnapura, and Kalutara, with the Western Province accounting for approximately 50% of all cases. Health officials attribute the rising trend to active monsoon conditions and ongoing rains, warning of potential further increases. The NDCU advises the public to seek immediate medical attention if a fever persists for over two days and to use only Paracetamol until consulting a doctor.

7 Updates

Update #8\u00b7 Jun 2 · 2:45 AM

Sri Lanka has recorded 33,864 dengue cases so far in 2026, with the death toll remaining at 19. The Ministry of Health reports a rapid rise in dengue patient reporting, with the highest numbers coming from the Western, Sabaragamuwa, and Southern provinces.

Update #7\u00b7 Jun 1 · 3:16 PM

Sri Lanka has recorded 33,572 dengue cases and 19 deaths so far in 2026, according to health authorities. Community Health Specialist Dr. Thushani Dabrera reported that 8,321 dengue cases were identified in May alone. The Western Province accounts for 50% of the total cases, with Colombo, Gampaha, and Kurunegala districts reporting the highest numbers. Authorities have identified 72 high-risk Medical Officer of Health (MOH) divisions across the country.

Update #6\u00b7 May 27 · 10:02 AM

Sri Lanka has recorded 32,071 dengue cases and 17 deaths so far in 2026, as of May 27. Among the deceased are two young children, aged nine and two and a half years. In response to the prevailing rainy weather, the National Dengue Control Unit has announced a three-day special mosquito control program scheduled for June 8, 9, and 10 in high-risk dengue areas.

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