As H1N1 cases are surging, senior scientists at the Indian Council of Medical Research (ICMR) have said that no new H1N1 strain is circulating in India and there is no cause for panic. They added that the influenza strains currently circulating are well-matched with the vaccine strains recommended for the Northern Hemisphere.
ICMR scientists clarified on Sunday that the Influenza A (H1N1) pdm09 viruses currently circulating in India are not a new strain, and hence there is no cause for any panic.
The scientists explained that the viruses belong to the A/Missouri/11/2025 (H1N1) pdm09-like virus strain. They belong to clade 6B.1A.5a2a, subclade D.3.1.1, and have been in circulation since 2025. The situation continues to be monitored through regular surveillance, with necessary public health measures being undertaken, the ICMR said.
‘Most H1N1 cases self-limiting’
Most H1N1 cases are self-limiting, like seasonal influenza, however, children, elderly people and those with underlying conditions need caution, said ICMR.
While common symptoms include fever, cough, headache and body ache, most people recover with appropriate care and rest. However, there can be risk of complications among young children, elderly persons and individuals with underlying medical conditions, and hence caution needs to be exercised.
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Timely consultation with a doctor is advised if the symptoms persist, worsen or turn severe.
Delhi govt steps up surveillance
Amid the surge in swine flu cases, the Delhi government has issued a public health advisory urging residents to follow respiratory hygiene, wear masks in crowded places and seek medical attention for flu-like symptoms.
The advisory also urged people to cover their mouth and nose while coughing or sneezing and wash their hands regularly.
Delhi has reported over 1,777 H1N1 cases this year, including 114 new cases on Thursday, while total Influenza-A cases have crossed 2,300.
The government has placed 35 hospitals under special surveillance and designated AIIMS and NCDC as referral laboratories for testing and monitoring.
It has also issued guidelines on treatment, home care, ventilatory support and masks, while directing health authorities to strengthen surveillance and reporting of influenza-like illness, severe respiratory infections, influenza and COVID-19 cases.

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