Sri Lanka's dengue outbreak: 47,530 cases, 29 deaths, military deployed
The Sri Lankan government has appointed a military-led monitoring unit to address a major dengue outbreak that has seen 47,530 cases and 29 deaths as of June 22, 2026. The decision, announced by the President's Office, reflects the severity of the situation as hospitals across the country face mounting pressure.
The National Dengue Control Unit reports that cases are being recorded across the island, with the capital Colombo accounting for nearly 10,000 cases — the highest among all districts.
Health officials attribute the surge to seasonal monsoons and the aftermath of Cyclone Ditwah, which struck the island in December 2025. Dr. Prashila Samaraweera, a consultant community physician at the National Dengue Control Unit, told Reuters: 'We noticed this increase after the cyclone. A lot of debris was in our environment, so we noticed a lot of mosquito breeding places, and our entomological indices were high from that time.'
Sri Lanka has experienced large dengue outbreaks in recent years, notably in 2017 (186,101 cases and 440 deaths), 2019, and 2023. The authorities launched a 'National Strategic Plan' for prevention and control after previous outbreaks.
The current outbreak is straining the healthcare system. The Health Ministry has said several hospitals are operating beyond capacity due to rising admissions. Health Minister Dr. Jayatissa has warned that the hospital system could face significant strain if case numbers continue to increase.
While Sri Lanka successfully eradicated malaria in 2016, earning international praise, it continues to face periodic dengue and chikungunya outbreaks, particularly around monsoon cycles that are now shifting in timing, duration, and intensity.
The deployment of the military for public health emergencies is not unprecedented. The tri-forces were involved during the COVID-19 pandemic and in disaster management after Cyclone Ditwah. However, the use of armed forces in civic roles has drawn mixed reactions from citizens. In the Tamil-majority north and east — areas that were war zones during the civil war that ended in 2009 — there is long-standing discomfort with military presence, with many calling for demilitarisation.
