H3N2 Flu Wave Hits Delhi : Important Prevention Tips To Stay Safe H3N2 is a subtype of the Influenza A virus , which is one of the viruses responsible for seasonal flu outbreaks. The "H" stands for ... A combined effect of polluted air and viral illnesses, particularly H3N2 , has left at least one person unwell in three out of every four households in Delhi -NCR. A recent survey finds that 69% of households in Delhi -NCR are grappling with viral symptoms, as the H3N2 influenza A strain emerges as the dominant virus . H3N2 Influenza Surge: Delhi sees a spike in H3N2 cases, raising concerns over severe complications and longer recovery times.
