Climate Change and Dengue Dynamics in South Indian States: A Decade of Evidence (2013–2022)

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Longitudinal study reveals significant influence of climatic variables on dengue dynamics in South India, indicating urgent public health needs.

Dengue cases increased by 15-25% with every 100mm rise in rainfall, highlighting the impact of climate on disease dynamics.
From 2013-2022, over 892,456 dengue cases and 2,847 deaths highlighted pressing public health concerns in six states.
Strong correlations between humidity and rainfall (r=0.90-0.98, p<0.001) were observed, indicating interdependencies among climate factors.
Non-linear temperature relationships showed peak dengue transmission at 26-30℃, underscoring the complexity of climatic influences.

Balasubramaniyan et al. (2025) studied this question.

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Longitudinal study reveals significant influence of climatic variables on dengue dynamics in South India, indicating urgent public health needs.