Flu season rolls around every year, and every year the flu shot is the easy thing to put off. There’s always something more pressing, and it rarely feels urgent until the flu is already moving through the house.
However, the 2025–2026 flu season was one of the most severe for kids in over a decade, with the highest flu hospitalization rate ever recorded for school-age children. Most children who catch flu are miserable for a week and then fine, so this isn’t cause for panic. But a flu shot is what protects your child from those more severe cases, which is why it’s worth a spot on your to-do list.
The AAP’s technical report on flu in children notes that, historically, up to 80% of children who died of flu were unvaccinated or only partly vaccinated. And plenty of the children who get seriously ill were healthy beforehand, with no underlying condition at all.
So there’s no doubt that every child needs the flu vaccine. The question most parents ask is where – and while one stop at the drug store sounds convenient, here’s a few reasons it may be more helpful to bring your kids to your pediatrician instead.
Most reactions are small and short. A sore arm for a day or two is the most common one, and it eases faster with normal movement than with rest. Some kids run a low-grade fever, feel achy, or want a long nap in the first 24 hours. All of that means the immune system is doing its job, not that something went wrong.
Serious reactions are genuinely rare, but those instances are when the setting matters most. A severe allergic reaction, called anaphylaxis, usually starts within minutes and needs epinephrine and trained hands right away. Pediatric clinics keep those medications stocked and dosed for children’s weights, and your child is watched for a short while afterward. If your child has had an odd reaction before, an egg allergy, or a history of Guillain-Barre syndrome, your clinician can also weigh that against their chart before anything is decided.
Timing matters as much as the shot itself. Aim for September or October, before flu spreads through classrooms, with all doses ideally done by the end of October. Protection takes about two weeks to build after a shot, so an earlier appointment means your child is covered before flu peaks, which is usually December through February.
Children 6 months through 8 years getting a flu vaccine for the first time need two doses four weeks apart: the first primes the immune system, the second locks in protection. One dose alone leaves them with much less protection. Because those two doses span a month, book the first as soon as the vaccine arrives in late summer. A baby who turns 6 months mid-season doesn't need to wait for next year either – the first dose can be given at the 6-month checkup.
Missed the October window? Still don’t skip it. Flu often circulates well into spring, so a November, December, or even January shot still protects. A late shot beats no shot.
Let’s Get Your Child Protected
The flu shot can be given during a regular visit with your child’s pediatrician. So, if they already have an upcoming appointment, just let the office know that you’d like your child to get the flu vaccine.
No upcoming appointment? No problem. You can also book a short, separate visit with our team specifically for the flu vaccine.
References
1. American Academy of Pediatrics, Committee on Infectious Diseases. (2025). Recommendations for prevention and control of influenza in children, 2025–2026: Technical report. Pediatrics, 156(6), e2025073622. https://publications.aap.org/pediatrics/article/156/6/e2025073622/202846/Recommendations-for-Prevention-and-Control-of
2. American Academy of Pediatrics, Committee on Infectious Diseases. (2026). Recommendations for prevention and control of influenza in children, 2026–2027: Policy statement. Pediatrics. https://publications.aap.org/pediatrics/article/doi/10.1542/peds.2026-078778/208572/Recommendations-for-Prevention-and-Control-of
3. American Academy of Pediatrics. (2026, August). AAP updates flu guidance, adds detailed recommendations for immunocompromised children. AAP News. https://publications.aap.org/aapnews/news/35699/AAP-updates-flu-guidance-adds-detailed
4. Kressly, S. J. (2019, December 19). Flu vaccinations: No place like the medical home. AAP Voices, American Academy of Pediatrics. https://www.aap.org/en/news-room/aap-voices/flu-vaccinations/
5. Taddio, A., Ipp, M., Thivakaran, S., Jamal, A., Parikh, C., Smart, S., Sovran, J., … Katz, J. (2012). Survey of the prevalence of immunization non-compliance due to needle fears in children and adults. Vaccine, 30(32), 4807–4812. https://pubmed.ncbi.nlm.nih.gov/22617633/