Microbial alert on metro rail: The invisible threats accompanying you

India Today · Sonali Acharjee · 2026-11-05 14:39 UTC

Studies have revealed the invisible microbial world on Chennai Metro and at Delhi’s railway stations. How to stay safe

Studies have revealed the invisible microbial world on Chennai Metro and at Delhi's railway stations. How to stay safe

For 32-year-old Priya Raman, a software professional from Chennai who travels on the city’s metro rail every day, the discovery of antibiotic resistant genes (ARGs) on surfaces used by commuters has come as a shocker.

Like thousands of office-goers, Priya frequently touches handrails, ticket machines and station counters without giving it much thought. But a recent web article caught her attention and since then, she says, she has become more careful of hand hygiene after metro rail rides.

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