Delhi has witnessed a notable decline in dengue infections this year, while malaria cases have shown only a marginal decrease compared to 2024, according to the latest data released by the Municipal Corporation of Delhi (MCD).

Dengue Cases Fall Sharply
As of November 15, 2025, Delhi has reported 1,257 dengue cases, marking a significant drop from 4,533 cases reported during the same period last year. The decline is even more pronounced when compared with 6,523 cases recorded by mid-November 2023.

This reduction is also reflected in dengue-related fatalities. Only two deaths have been reported so far this year, compared to 11 deaths in 2024 and 19 deaths in 2023, indicating improved management and prevention measures.

Monthly data highlights that dengue cases have remained subdued throughout the monsoon and post-monsoon period, historically the peak season for mosquito-borne infections. For instance, in October 2025, the city reported 208 cases, a considerable decrease from 377 cases in October 2024 and 2,003 cases in 2023.

Malaria Cases Remain Steady
In contrast, malaria infections have shown a more stable pattern. Till mid-November, Delhi recorded 671 malaria cases, only slightly lower than the 728 cases reported in the same period last year. While this marginal dip breaks the upward trend seen in 2024, malaria infections remain significantly higher than the period between 2021 and 2023, when annual infections ranged between 166 and 366 cases. Notably, no deaths from malaria have been reported so far this year.

Geographical Distribution
The distribution of cases across Delhi shows that certain zones remain hotspots for these vector-borne diseases:

• Dengue: Shahdara (South) continues to report the highest number of cases, followed by Rohini and Shahdara (North).
• Malaria: Shahdara (North), Shahdara (South), and West Delhi have recorded the maximum caseloads.

Chikungunya Trends
The city has also reported 17 chikungunya cases in 2025, a substantial reduction from 75 cases recorded during the entire month of November last year. For context, there were 15 cases in November 2023 and four cases in 2022, suggesting that chikungunya infections have remained relatively low in recent years.

Key Takeaways

• The sharp decline in dengue cases and deaths is a positive indicator of the effectiveness of public health interventions, vector control measures, and awareness campaigns.
• Malaria, although slightly reduced, continues to require sustained monitoring, especially in high-risk zones.
• The overall reduction in chikungunya cases suggests improvements in mosquito-borne disease management in the city.

While dengue numbers have come down significantly, the persistence of malaria cases highlights the need for continued vigilance, vector control, and public awareness to curb mosquito-borne diseases in Delhi.