An influenza vaccine, commonly called a flu shot, is produced each year and released in the United States in September. Getting a flu shot can help prevent a child from getting the influenza virus, also called the flu, or having serious complications from the flu.

The flu shot is different every year, so children need to receive a flu shot yearly. The effectiveness of the vaccine depends on the degree of similarity of the strains of flu included in the vaccine and the strains circulating in a community. Flu shot effectiveness also can vary from one person to another, depending on factors such as age and current health. The flu shot is available to children ages 6 months and older.

The Centers for Disease Control and Prevention (CDC) recommends annual flu vaccines for children starting at 6 months old. Children between age 6 month and 8 years who are getting the flu shot for the first time should get two doses of the vaccine, according to the CDC.

“It’s important to have children protected against the flu virus before flu season starts, because building antibodies typically takes a couple of weeks after vaccination,” said Kristina K. Bryant, M.D., pediatric infectious diseases specialist with Norton Children’s Infectious Diseases, affiliated with the UofL School of Medicine. “Flu vaccines are safe and offer protection against the most common strains of the virus.”

Where to Get Your Child a Flu Shot

Flu Shots for Children Ages 6 Months and Older

Flu Shots for Children Over Age 2 Years