Delhi recorded 98 fresh dengue cases in the first week of October, taking the city’s cumulative tally for 2026 to 695, according to the Municipal Corporation of Delhi’s weekly vector-borne disease report for the week ending October 3.
The latest increase follows the city’s highest monthly dengue count of the year in September, when Delhi reported 286 cases. The city recorded 90 cases in August, indicating a sharp rise in reported infections as the mosquito-breeding season continues.
The MCD report also recorded 23 malaria cases in October so far, taking Delhi’s cumulative malaria tally for the year to 266. September was also the worst month for malaria in 2026, with 124 cases, compared with 53 cases in August.
No deaths due to dengue or malaria have been reported in Delhi so far this year, the report said. The city recorded two fresh chikungunya cases in the first week of October, taking the monthly count to two. Delhi reported eight chikungunya cases in August and five in September, while the cumulative tally for the year has reached 29. No chikungunya deaths have been reported.
The figures place the civic body’s mosquito-control operations under continuing pressure across Delhi. The MCD said vector-control and enforcement measures were being carried out in all civic zones to check the spread of dengue, malaria and chikungunya.
The scale of the response is reflected in the number of inspections conducted by the civic body. Domestic breeding checkers have carried out more than 3.18 crore house visits so far this year and detected mosquito breeding in over 1.89 lakh households, according to the report. These visits are intended to identify conditions where mosquitoes can breed, including stagnant water in and around residential premises.
The MCD has issued 1,32,172 legal notices for conditions conducive to mosquito breeding during the year. It has also launched 20,882 prosecutions and collected Rs 29.70 lakh in penalties, the report said.
The enforcement figures show that Delhi’s response involves both household-level inspections and legal action. However, the latest case numbers also underline the continuing difficulty of controlling mosquito-borne disease across a large and densely settled urban area, where breeding sites can emerge in homes, institutions, construction areas and other locations.
The MCD’s next weekly disease report will indicate whether the rise recorded in September and the first week of October continues. For now, the civic data shows dengue as the most prominent of the three reported mosquito-borne diseases in the capital, with 695 cases recorded in 2026 and no reported deaths.
