Tricity records 160 dengue cases from Jan to Oct, 95% decline from 3,173 in same period last year

Dengue is usually spread by the Aedes mosquito, which breeds in stagnant water.

Every year, cases usually rise during and after the monsoon season, but this year, the situation is different. Experts believe the change in rainfall patterns and the preventive measures taken by the Health Department are the main reasons for the steep decline.

Between June and September 2025, the city received 836 mm of rainfall, compared to 776.2 mm last year. Despite the heavier rain, dengue cases did not increase as the administration successfully prevented water stagnation and destroyed mosquito breeding sites.

“Haryana and Punjab have several cases, so we should not be off guard. We really can’t attribute one reason to the steep decline in the number of cases. It can be the weather and a change in the rain pattern. Due to the heavy rainfall, rainwater did not stagnate but flowed. September and October are the peak months for dengue, but until the temperature drops, we cannot be complacent. This year, the breeding is less, and sometimes there is a mutant variation as well, so we urge residents to remain cautious. We take extensive preventive measures every year, so these certainly help,” Dr Suman Singh, Director of Health Services, said.

Officials also see public awareness as a major factor in the steep decline of dengue cases.

Messages urging people not to let water collect in flowerpots, buckets, discarded tyres, and open containers have shown good results. According to the Health Department, if this level of cleanliness and alertness continues, dengue will remain under control in the coming months.

Usually, September and October are considered the peak dengue months. But as we are in the last week of October, the situation remains under control. According to Health Department officials, due to continuous heavy rainfall, water did not collect, disrupting the mosquito breeding cycle. Still, the department has advised people to remain alert, as October is not yet over and remains a crucial time for dengue risk.

Besides awareness campaigns, the Health Department teams are visiting homes to check for larvae, while joint teams from the Municipal Corporation and the Health Department are issuing notices, show-cause letters, and fines to violators. Officials say while the situation is under control, taking it lightly can be dangerous, and continued vigilance is necessary to keep dengue cases low.

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