India records first 2 H3N2 flu deaths in Haryana, Karnataka

The Union health ministry on Friday advised states to be on alert after two H3N2 deaths were reported from Haryana and Karnataka. There are four types of influenza viruses: A, B, C, and D. Influenza A and B viruses cause seasonal epidemics of disease in people almost every year in January to March and the post-monsoon season in India.