The Indian Council of Medical Research (ICMR) has clarified that Influenza A (H1N1) viruses currently circulating in India belong to the A/Missouri/11/2025 (H1N1) pdm09-like strain, with no new H1N1 strain detected. The viruses belong to clade, subclade, and have circulated since 2025. ICMR said the circulating strains remain well matched with vaccine strains recommended for the Northern Hemisphere and stressed that seasonal influenza is mostly self-limiting. Common symptoms include fever, cough, headache and body ache, while children, older adults and people with underlying conditions may face greater risks of complications. Medical advice is recommended if symptoms persist or worsen.

DES-- India has nevertheless reported increased seasonal H1N1 activity during the monsoon, particularly in major cities. Delhi has recorded 1,777 confirmed cases this year, including 114 on August 20, while Karnataka has reported more than 4,000 cases. The Union Health Ministry is monitoring the situation through surveillance and public health measures. Authorities continue to recommend seasonal vaccination, particularly for high-risk groups, alongside timely medical consultation for severe symptoms, according to The Hindu report.

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Anshika Mishra

Anshika Mishra is a Biotechnology postgraduate with nearly three years of professional experience in medical journalism. Since joining Medical Dialogues in 2023, she has been reporting on healthcare, medical education, public health, and medical research. With a strong interest in science communication, she focuses on translating complex medical and scientific developments into accurate, clear, and accessible content for a wider audience.

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