October 8, 2025

H3N2 Flu

Current Context: The H3N2 flu virus has triggered a major epidemic throughout the entire Delhi-NCR region.

About H3N2 

  • It is a subtype of the Influenza A virus, affecting mainly those over 50 and under 15.
  • It spreads through respiratory droplets and contaminated surfaces, with higher risk in crowded spaces like schools and nursing homes.
  • H3N2 infection symptoms typically begin with sudden high fever, chills, sore throat, headaches, muscle, body aches, fatigue, abdominal pain and sometimes gastrointestinal symptoms like nausea and diarrhoea.
  • H3N2 flu is usually treated at home with rest, hydration, and symptomatic care like steam inhalation and warm saline gargles.
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