Flu Shots for Kids (2026 Guide)

A flu shot for kids is recommended every year for children 6 months and older because flu viruses change and protection decreases over time. Annual vaccination can lower a child’s risk of getting influenza and developing serious complications, especially when combined with everyday habits such as handwashing and staying home when sick.

Why do kids need a flu shot every year?

Children need yearly flu vaccination for two main reasons:

• Flu viruses constantly change, so the vaccine is reviewed and updated to provide protection against the strains expected during the upcoming season.
• Protection from vaccination decreases over time, making a new dose important each year.

A yearly flu vaccine is part of routine preventive care, much like scheduled well-child visits and other recommended immunizations. It is not a guarantee that a child will never become sick, but it can reduce the risk of influenza and may make illness less severe.

Parents can review their child’s broader vaccine needs on our Immunizations page or discuss them during a well-child visit .

How serious can flu be for children?

Flu can cause fever, cough, sore throat, tiredness, muscle aches, headache, and other symptoms. Many children recover without complications, but some children are more likely to become seriously ill. Young children and children with certain underlying health conditions may face a higher risk of complications.

Potential complications can include dehydration, worsening of existing medical conditions, pneumonia, or the need for hospital care. Infants younger than 6 months are too young to receive a flu vaccine, so vaccination of eligible family members and caregivers can be especially important for household protection.

Seek medical advice promptly if your child has trouble breathing, signs of dehydration, unusual sleepiness, persistent or worsening symptoms, or another symptom that concerns you. For general guidance, visit Is Your Child Sick?® .

Who should get a flu shot for kids?

Most children 6 months and older should receive a flu vaccine each year unless their healthcare professional recommends otherwise. A pediatrician can consider a child’s age, health history, previous vaccination, and the timing of the current flu season.

Children who are 6 months to 8 years old may need two doses during their first vaccination season, depending on their previous flu vaccination history. These doses are given several weeks apart. A child who has received enough previous seasonal flu vaccine may need only one dose.

Because recommendations can depend on individual circumstances, ask your child’s healthcare professional how many doses are appropriate. Do not assume that one dose is enough for a young child who is receiving flu vaccination for the first time.

Why do some kids under 9 need two doses?

Younger children may need two doses to build an initial level of protection when they have not previously received enough flu vaccine. The second dose gives the immune system another opportunity to respond before or during the flu season.

Your pediatrician can review your child’s records and help you plan the timing. Keeping immunization records available can make this conversation easier, especially if your child received vaccines at more than one location.

What are common flu vaccine side effects?

Most side effects are mild and short-lived. Common reactions can include soreness, redness, or swelling where the shot was given. Some children may also have a low-grade fever, tiredness, headache, or muscle aches for a short time.

These reactions generally resolve on their own. The injected flu vaccine cannot give your child influenza. If you are unsure whether a symptom is an expected reaction or a sign of illness, contact your child’s healthcare professional for advice.

Flu shot myths parents often hear

Myth: The flu shot causes the flu.

The injected flu vaccine does not cause influenza. A child may have mild, temporary side effects as the immune system responds, or may be exposed to a flu virus before protection develops.

Myth: Healthy children do not need flu vaccination.

Healthy children can still catch and spread influenza. Vaccination helps reduce their risk and may help protect babies, older adults, and people with health conditions in the same household or community.

Myth: One flu shot protects a child forever.

Annual vaccination is recommended because circulating viruses change and vaccine protection decreases over time.

How can parents prepare for vaccination?

A simple plan can make the appointment more comfortable:

1. Bring your child’s immunization record if available. Our staff can also help with this.
2. Tell the pediatrician about allergies, previous vaccine reactions, current illness, or ongoing health conditions.
3. Explain honestly that the shot may pinch, but it will be quick.
4. Offer comfort, a favorite toy, or age-appropriate distraction.
5. Ask when your child should receive the next dose, if two doses are recommended.

Frequently asked questions about flu shots for kids

Book your child’s flu vaccine visit

A yearly flu shot is a practical way to support your child’s health and help reduce the risk of influenza complications. Children 6 months and older should be evaluated for seasonal vaccination, and some children under 9 may need two doses based on their previous vaccination history. If you have questions about side effects, timing, or your child’s individual needs, contact Chapel Hill Children & Adolescents’ Clinic. Book an appointment with our pediatric care team in Chapel Hill, NC.

Chapel Hill Children & Adolescents’ Clinic provides personalized pediatric care in a welcoming, family-friendly setting. The clinic serves families in Chapel Hill and surrounding communities, including Pittsboro/Siler City, Durham, Hillsborough, and Mebane/Graham.