The Delhi-NCR region is experiencing a sharp rise in H3N2 influenza cases. While seasonal flu is not uncommon during weather transitions, doctors note that this year’s outbreak is particularly intense. What makes H3N2 concerning is its longer recovery period, higher complication risks, and its impact on vulnerable groups such as children, the elderly, and people with chronic illnesses. On the surface, H3N2 looks like regular flu: fever, cough, sore throat, and runny nose. But the difference lies in the duration and intensity of symptoms. Unlike seasonal flu, which usually subsides in three to four days, H3N2 often lingers for over a week, leaving behind prolonged weakness even after the fever comes down. Many patients report persistent cough and fatigue, which delays recovery. Dr

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