Sri Lanka National Dengue Control Unit: Weekly Dengue Update, Week 40 (28th – 04th October 2026)

Please refer to the attached file. DENGUE CASE REPORTING During the 40th week, 1240 suspected dengue cases were reported across 24 districts/regions, compared to 1216 cases in the previous week, reflecting 2% increase. The Western Province accounted for 43. 2% of total cases, with the Colombo Municipal Council (CMC) contributing 5. 4%, the rest of Colombo District 14. 8%, Gampaha District 17. 3%, and Kalutara District 5. 6%. Outside the Western Province, notable case contributions were reported from Kandy (12. 6%), Galle (5. 6%), Ratnapura (4. 4%), Matale (4. 2%), Kalmunai (4. 2%), Kegalle (3. 8%), Kurunegala (3. 5%), Matara (3. 1%), Jaffna (2. 7%), Hambantota (2. 3%), Batticaloa (2%) and Anuradhapura (2%) (see Table 1) (compared to the previous week, colour of %: red=increase, green=decrease, blue=no change).

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