Complains of fever, cough, itchy throat and flu-like symptoms have ignited discussions around H3N2 flu. According to a recent study conducted by LocalCircles, around 69% of households in Delhi, Gurugram, Noida, Faridabad and Ghaziabad reported at least one individual with symptoms such as high fever, cough, sore throat and fatigue, primarily attributed to H3N2. The survey, which covered around 11,000 respondents, compared the results of September 2025 to their last survey conducted in March 2025.

Let's find out what is it, how is spreads and what are its symptoms. Later we will shed light on its diagnosis and treatment.

What is H3N2 flu?

It is a respiratory viral infection which primarily affects people over 50 years and under the age of 15, according to Apollo Hospitals. A subtype of t

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