There are over 30 to 50 lakh cases of severe episodes (8 lakh being children under the age of 5 years) of influenza with nearly 2.9 – 6.5 lakh people dying of this disease every single year. The infection tends to be worse in countries like ours that have tropical climates, often present throughout the year. The good news for parents is that vaccines are already available for the flu. As per WHO, India is categorised under Southern Hemisphere Tropical Asia Vaccination zone. The best time to vaccinate is during the monsoon.