The country has recorded 27,754 dengue cases and 14 deaths so far this year, with infections reported from all 25 districts, health officials said.
The National Dengue Control Unit said on Tuesday the number of confirmed cases had increased compared with 2025.
The highest number of infections has been reported from the Western Province, while Matara, Galle, Ratnapura, Kalutara and Kandy have also recorded significant case numbers during the first four months of 2026.
Community Medical Specialist Priscilla Samaraweera of the National Dengue Control Unit said at a media briefing held at the health ministry that the start of monsoon rains could further increase transmission.
Officials said breeding has increased more in schools, workplaces, religious institutions and government and private institutions than in households. — Xinhua
