
Delhi recorded 1,344 H1N1 cases this monsoon season, marking a six-fold increase compared to the 229 infections reported during the same period last year.
Mumbai reported 309 cases between 1 June and 15 August, while Kerala recorded 5,475 cases and 63 deaths between May and July due to influenza A.
Doctors advise early testing within 24 to 48 hours of symptom onset, noting that children with asthma and elderly patients require extra precautions during this spike.