As Utah County families prepare for autumn, health officials emphasise the importance of early influenza shots for children to prevent severe illness and complications during the upcoming flu season.
As autumn settles in Utah County, families are often focused on school routines, colder weather and more time indoors. It is also the point in the year when doctors begin urging parents to think ahead about influenza, which remains one of the most common and disruptive respiratory illnesses in children. Utah Valley Pediatrics says the best time to act is before the season begins in earnest, when a vaccine can still build protection in time for the months ahead.
The American Academy of Pediatrics recommends annual flu vaccination for everyone aged six months and older who does not have a medical reason to avoid it. The CDC likewise advises yearly vaccination for most children, noting that flu shots can prevent millions of illnesses and medical visits. During the 2024-25 season alone, the CDC says vaccination prevented about 10 million illnesses, 5 million doctor visits, 180,000 hospitalisations and 12,000 deaths in the United States.
Doctors say the flu should never be dismissed as a routine winter bug. The CDC warns that children younger than 5 are at greater risk of serious illness, with those under 2 facing the highest risk among young children. Children with asthma, diabetes and other chronic conditions are also more vulnerable to complications. Utah Valley Pediatrics notes that warning signs can include breathing difficulty, dehydration, extreme weakness, unusual sleepiness or a return of symptoms after initial improvement.
Timing matters because protection is not immediate. According to the CDC, it takes roughly two weeks after vaccination for the body to develop a useful immune response. That is one reason health officials encourage families to vaccinate in September or October, and the AAP advises that children who need two doses should start early enough to finish the series at least four weeks apart before flu activity rises. The academy’s 2025-26 guidance says any age-appropriate licensed influenza vaccine may be used, depending on the child’s age and health status.
Some children between 6 months and 8 years old need two doses, depending on their past vaccination history. Older children generally need one dose each season. The CDC says the need for two doses depends on previous flu shots, which is why paediatricians often review immunisation records before giving advice. Babies younger than 6 months are too young to be vaccinated, so public health agencies recommend protecting them indirectly by vaccinating parents, siblings and caregivers.
The vaccine is updated each year because influenza viruses change and protection fades over time. That is why last year’s shot is not enough for the current season. Both the CDC and the AAP say annual vaccination remains the best defence against flu and its complications, and Utah Valley Pediatrics argues that getting the shot in a child’s regular medical home can make it easier to confirm the right dose, discuss side effects and keep the immunisation record complete.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
