Dr Zafar Nowshad Wani Flu is a respiratory (i.e., nose, throat, and lung) infection that can be caused by a variety of influenza viruses. Many people use the word “flu” when they actually have a cold. Although common cold is also caused by viruses, flu and common cold differ in several ways .In  India, including … Continue reading Know what flu is and if you need a vaccine shot before winter sets in Kashmir