Every fall we have some version of the same conversation in our exam rooms. A parent sits down, we bring up the flu shot, and there is a pause. Sometimes it is a scheduling question. Sometimes it is "we got it last year, and everyone got sick anyway." Sometimes it is a question about how the vaccine gets made and why it changes every single year.
Those are fair questions, and we felt this month’s blog is the perfect place to answer them. So here is the honest version of what we tell families, including the parts that are a little complicated.
Of the children who died from the flu in the United States last season, roughly 85 percent were not fully vaccinated. Flu deaths in children, thankfully, are rare, on the order of a couple hundred a year nationally, but it happens. The point of sharing this statistic is not to frighten you, but to educate you. When the flu does turn severe, vaccination is the clearest dividing line we can see.
That figure has held steady for years, across good match seasons and bad ones. It is the single most useful thing to know about the flu shot, because it tells you what the vaccine is actually for. It is not primarily a promise that your child will not catch the flu. It protects against the worst version of the flu.
Last year's flu season was bad. It put an estimated 380,000 people in the hospital nationally and caused around 24,000 deaths across all ages. At least 190 of those deaths were children, and that count tends to climb for months afterward as reports come in.
The season before that, 2024-2025, was the deadliest non-pandemic flu season on record for American children, with 280 pediatric deaths.
Two hard seasons back-to-back is not the pattern anyone wants to see, and it is a big part of why we are talking about this earlier than usual this year.
Flu does not spread evenly, and it does not land evenly either.
Hospitalization rates last season tell the story. Children under 5 were hospitalized at a rate of about 98 per 100,000, more than double the rate for kids ages 5 through 17. Within that youngest group, babies under 6 months have the highest rates of hospitalization and death of any children, and they are the one group that cannot be vaccinated at all.
Beyond age, kids at higher risk for severe flu include those with asthma or other chronic lung conditions, heart conditions, diabetes, neurologic or neurodevelopmental conditions, weakened immune systems, and children with obesity. About half of the children who die from flu each year have no underlying condition at all, which is worth sitting with for a second. Healthy kids are not exempt.
School-age kids are the engine of flu transmission in a community. They pick it up, carry it home, and pass it to everyone in the house. When your child gets vaccinated, you are also protecting:
If your family is the kind that spends the holidays with a new baby and a grandmother in the same room, this is the argument. One shot in September or October is a small thing that can affect many other people’s lives.
More than 150 labs around the world watch flu viruses year-round through a surveillance network the World Health Organization has run since 1952. Twice a year, once for each hemisphere, experts look at what is circulating, which versions are gaining ground, and how those viruses have changed since last season. Then they pick the strains.
For our upcoming season, that meeting happened in late February 2026. That timing is not arbitrary. Manufacturers need roughly six months to grow, test, and distribute hundreds of millions of doses. February is the last responsible moment to decide and still have vaccine in our fridge by fall.
The 2026-2027 vaccine in the U.S. is trivalent, meaning it covers three strains:
A fourth strain, influenza B/Yamagata, was dropped from vaccines after it stopped circulating worldwide. There are dozens of flu viruses out there in any given season. The vaccine targets the three expected to cause the most human illness, not all of them. That is by design, and it is also the honest limit of what a flu shot can do.
You may have heard about "subclade K." Here is what happened.
Scientists chose the strains for the 2025-2026 vaccine in February 2025. Sometime after that, an influenza A H3N2 virus mutated, meaning it changed enough to look different to the immune system. The mutated version accounted for a large percentage of the H3N2.
That six-month lead time works against us. It is the tradeoff for having any vaccine ready at all.
But it still makes a difference.
CDC research has found flu vaccination cuts a child's risk of dying from flu by around 80 percent. In the 2024-2025 season alone, vaccination is estimated to have prevented nearly 15,000 hospitalizations and 245 deaths among children and teens.
A partial shield is not the same as no shield.
"My child got the shot and still got the flu. What was the point?"
Two things are usually true. First, no flu vaccine is close to 100 percent, and in a drift season it can be well under half. Second, and more important, we have no way to show you the version of that illness your child did not have. The measurable benefit is in the emergency room visit that did not happen and the pneumonia that did not develop.
"Can the flu shot give my child the flu?"
No. The injectable vaccine contains no live virus. A sore arm, a low fever, or a day of feeling tired means the immune system is doing its job. It takes about two weeks after vaccination to build full protection, which is why a child who gets vaccinated and catches flu three days later was almost certainly already exposed.
"When should we come in?"
Get it done by the end of October if you can. Flu activity in North Carolina usually picks up in the fall and peaks between December and February, and protection takes about two weeks to build. Earlier is better than later, and later is far better than never. We vaccinate all season long.
"Does my child need one dose or two?"
Most kids need one. Children between 6 months and 8 years old who are getting a flu vaccine for the first time, or who have only ever had one dose, need two doses spaced at least four weeks apart. If that is your child, starting early matters more, because both doses need to be in before flu arrives. We will check your child’s record and tell you which applies.
"What about the baby?"
Babies can get their first flu vaccine at 6 months. Before that, the plan is to protect the people around them. Flu vaccination during pregnancy passes antibodies to the baby and is recommended in any trimester. Vaccination while breastfeeding is safe and also helps. Everyone in the household should be up to date.
"Which vaccine should we get?"
The American Academy of Pediatrics recommends annual flu vaccination for every child 6 months and older without a medical reason not to, and does not prefer one licensed product over another. The best flu vaccine is the one your child can get at the visit they are already scheduled for.
When to Come In
Only about half of American children got a flu vaccine last season. For a virus that hospitalized nearly 100 out of every 100,000 children under 5, that is a wide gap between what we can prevent and what we do prevent.
If your child is due for a well visit, we can handle the flu vaccine at the same appointment. If they are not due for anything, we have special flu vaccine appointments built into our schedule. Bring your questions. We would rather spend ten minutes on them in the exam room than have you decide from a headline.
Ready to check flu shots off the list? Call Little Oaks Pediatrics at (919) 720-4876 or schedule online.