Colombo district saw the most cases in 2019 with nearly 20,000, followed by Gampaha district and the Kandy district.With the ongoing rainy condition, the Epidemiology Unit has identified five high-risk districts: Colombo, Gampaha, Kalutara, Ratnapura and Galle districts.
Health officials has reminded the public to be vigilant on mosquito breeding sites and destroy them on a regular basis. Sri Lanka saw its worst year with dengue fever in 2017 when a record 186,000 cases were reported.