When Should My Child Get a Flu Shot?
Every year, the flu vaccine is one of the most important things you can do to protect your child — and your family — from a potentially serious illness. Here’s everything you need to know about timing, eligibility, and why it matters.
The Ideal Timing: September or October
The CDC recommends that everyone 6 months and older receive a flu vaccine by the end of October. September and early October are ideal because it takes about two weeks after vaccination for full protection to develop — and flu season can begin as early as October, with peak activity typically between December and February.
If you miss the October window, it’s still worth vaccinating in November, December, or even later in the season. Late vaccination is far better than no vaccination.
Who Needs It?
Every child 6 months and older should receive an annual flu vaccine. Children under 9 years receiving a flu vaccine for the first time need two doses given 4 weeks apart — plan accordingly.
Children with underlying health conditions — including asthma, diabetes, neurological conditions, and compromised immune systems — are at higher risk for serious flu complications and should be vaccinated as a priority.
Flu Vaccine Myths Worth Addressing
- “The flu shot gives you the flu” — False. The injectable flu vaccine contains inactivated virus and cannot cause flu infection. Post-vaccination arm soreness and mild fatigue are not flu.
- “We got the flu last year after the shot” — A different respiratory virus caused those symptoms, not the flu vaccine. Flu-like illnesses from other viruses are common in fall and winter.
- “It’s not worth it if the strain match isn’t perfect” — Even in years of imperfect strain matching, the vaccine reduces severity, hospitalization, and death.
Schedule flu vaccines for your whole family. Call (702) 457-5437 or visit our vaccines page.
