Influenza is an acute communicable disease that spreads from one individual to another. Influenza virus is also known as Flu and it is responsible for affecting Upper Respiratory Tract Infections (URTI). Influenza virus is different from common cold and sometimes it may cause death. It spreads rapidly in seasonal epidemic conditions. It occurs every autumn and winter season. It affects all the age groups, but it is chronic in pregnant women, children under 5 months, aged persons, whose immunity is very low. This study focused on the types, signs and symptoms, complications, treatment and preventive measures of Influenza Virus.
