Find facts about flu (influenza) here, including how to recognize flu symptoms in babies and kids. Flu can cause children under 4 years old to get very sick. Everyone age 6 months and older should get annual flu shots. The best time to get the influenza vaccine is before Halloween, but kids can get a flu shot at any time during flu season. (Adults need annual flu shots, too!)
Read on to learn more about influenza, how immunization helps prevent severe illness, vaccine safety, possible flu shot side effects, common questions and why pediatricians recommend flu vaccines for babies, children and teens.