The dry and warm conditions in Feb /Mar probably drove the drop - still it is at past epidemic levels for March. Colombo (653) has the highest number of cases, followed by Jaffna (377) and Gampaha (298). The highest incidences were in Jaffna, Batticaloa, Colombo, and Kalutara for 10,000 persons.

 

Epi Curve of COVID 19 Patients, Sri Lanka