Study Finds Elderly Indians Face Sharply Higher Disease Risk After Floods

A new study published in the journal Discover Public Health has found that older adults in India exposed to floods and cyclones face significantly elevated risks of contracting diarrhoea, cholera, typhoid, dengue and malaria. The research analysed health data from flood and cyclone-prone regions across India, examining disease outcomes among adults aged 45 and above.

The study provides quantitative evidence for risks that communities have long observed but that disaster management frameworks have largely ignored. Weakened immune systems, chronic conditions and reduced mobility make older adults less able to cope with contaminated water, crowded shelters and disrupted medication access. The Sundarbans delta in West Bengal, already facing rising sea levels, erratic rainfall and cyclones, exemplifies the compounding vulnerabilities facing elderly residents in climate-exposed coastal areas. Relief camps rarely provide age-appropriate sanitation, medical teams frequently lack geriatric training, and early warning systems often fail to reach isolated elderly residents.

The study places elderly health risk within a broader context of age-stratified climate vulnerability. While older adults, newborns and infants face higher mortality risk from flood-related causes, the youth, females, those in poverty and coastal residents also carry elevated exposure. Healthcare utilisation patterns shift significantly during flood events, with increased demand for emergency services coinciding with reduced access to routine care due to infrastructure disruption and financial constraints. India's disaster management framework continues to treat the elderly as an afterthought, according to the study's authors.

The study calls for integrating geriatric health into disaster preparedness, recommending age-specific disease surveillance during disasters, priority access to clean water for elderly evacuees, mobile health units for managing chronic conditions and community health worker training on elderly vulnerability. With India's elderly population projected to nearly triple by 2050 and climate change intensifying flood and cyclone frequency, the authors argue that targeted planning can no longer be deferred. Community and social support systems in rural and remote areas, alongside accessible primary healthcare services, are identified as essential components of an effective response.

Key figure — India's elderly population set to nearly triple by 2050