Synopsis: South India now accounts for 61.8% of India’s dengue cases in 2025, with 30,628 cases and 95.2% of deaths, driven by Karnataka, Tamil Nadu, and Kerala. Climate, erratic monsoons, and rapid urbanisation fuel mosquito breeding, amplifying transmission. Kerala’s high mortality contrasts with Karnataka’s effective case management, highlighting regional disparities in healthcare response.

In 2021, if you picked 20 dengue patients randomly across India, only three would have been from the southern states. Fast forward to 2025, the ratio has dramatically shifted—now three out of every five dengue cases in the country originate from South India.

The latest data from the National Center for Vector Borne Diseases Control (NCVBDC) accessed through RTI by South First reveals a startli

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