ICMR Clarifies: No New H1N1 Strain in India
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Senior scientists at the Indian Council of Medical Research (ICMR) have reassured the public that the Influenza A (H1N1) pdm09 viruses currently circulating in India are not a new strain and there is no cause for panic. The viruses belong to the A/Missouri/11/2025 (H1N1) pdm09-like virus strain, clade 6B.1A.5a2a, subclade D.3.1.1, which has been in circulation since 2025. These viruses are well matched with the vaccine strains recommended for the Northern Hemisphere. Seasonal influenza, including H1N1, is mostly self-limiting, but young children, elderly persons, and individuals with underlying medical conditions may be at greater risk of complications.
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