Mumbai: The city has witnessed a sharp surge in dengue and leptospirosis (Lepto) cases over the past fortnight, with an average of 28 new dengue cases reported daily. Overall, dengue infections rose by 58%, while leptospirosis saw a 79% spike during this period. Health officials attribute the rise to a break in rainfall followed by sudden showers, which created favourable conditions for mosquito breeding.
Mumbai Reports 1,160 Dengue Cases This Year, 426 in Last Fortnight Alone
According to the Health Department of the Brihanmumbai Municipal Corporation (BMC), a total of 1,160 dengue cases have been reported so far this year, with 426 of them recorded in the last 15 days alone—an average of at least 28 new cases daily. Compared to the same period last year, the city has recorded 194 more dengue cases, marking a 20% increase.
Leptospirosis cases have also surged in the last two weeks. Of the 244 cases reported from January to July 2025, 108 were recorded between July 16 and July 31. While this marks a 79% increase in just 15 days, the overall figure remains slightly lower than the same period last year, when 281 cases were reported.
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Malaria has also shown a notable rise. As of July-end, Mumbai has recorded 4,151 cases, compared to 2,852 during the same period in 2024. Of these, 664 new cases were registered in the last fortnight alone. On July 15, the total stood at 3,490 cases.
Malaria, Chikungunya Cases Also Spike; Gastroenteritis Sees Slight Dip
Chikungunya, too, has seen a sharp increase. The city reported 265 cases from January to July 2025, up from just 46 cases in the same period last year. In the last 15 days alone, 86 new cases were recorded.
On a positive note, gastroenteritis cases have declined slightly. This year, 5,128 cases have been reported till July, compared to 5,439 during the same period last year.
In response to the surge, the BMC has launched a citywide “Zero Mosquito Breeding Campaign,” following a recent visit from officials of the National Center for Vector Borne Disease Control (NCVBDC), Delhi. The campaign focuses on eliminating mosquito breeding sites in municipal hospitals, government offices, and residential areas.
BMC Surveys Over 14 Lakh Homes, Screens Nearly 70 Lakh Residents
Between July 1 and 31, the civic body carried out intensive fieldwork, surveying over 14.39 lakh homes and screening 69.89 lakh people for fever. Approximately 2.31 lakh blood samples were collected for contact tracing, and several health camps and workplace interventions were conducted to raise awareness.
Over 29,000 Dengue Breeding Spots Found; 86,915 Items Removed
Since dengue is classified as a “notified disease,” vector control teams inspected over 5,000 premises and detected 29,841 Aedes mosquito breeding spots. They removed around 86,915 potential breeding items, including discarded containers and tyres. Fogging operations covered 52,593 buildings and over 8.16 lakh hutments across the city.
The BMC has urged citizens to eliminate stagnant water around their homes, avoid storing old tyres or open containers, and use mosquito repellents or nets. People experiencing fever are advised to visit the nearest civic clinic instead of self-medicating.
Additional precautions include drinking boiled water, avoiding uncovered street food, and continuing to follow COVID-19 safety protocols—especially important for vulnerable groups. The BMC has emphasized that active community participation is crucial to controlling the spread of monsoon-related diseases.
