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The story so far: India’s dengue epidemic is entering a more complex phase, with multiple virus strains now circulating simultaneously across much of the country, notes a two-year nationwide surveillance study by the Indian Council of Medical Research’s (ICMR) Virus Research and Diagnostic Laboratory (VRDL). Experts warn that this pattern, known as hyperendemic transmission, can increase the risk of severe illness, make outbreaks more difficult to predict and complicate future vaccination strategies.
The findings offer a clear picture of how dengue is evolving in India and why these matters for outbreaks, severe disease, and future vaccination policy.
