The flu sends hundreds of thousands of people to the hospital in a typical year in the U.S. An annual flu vaccine is one of the best ways to lower your risk of getting sick and, if you do get the flu, of having a severe illness. Here’s what to know about getting vaccinated this season.
Who should get a flu vaccine?
Flu vaccines are available for people 6 months and older, and annual vaccination has long been recommended for nearly everyone in that age group. It’s especially important for people at higher risk of complications, including:
- Adults 65 and older
- Young children, especially those under 5
- Pregnant people
- People with chronic conditions such as asthma, heart disease, diabetes, kidney or liver disease
- People with weakened immune systems
- Residents of nursing homes and long-term care facilities
Vaccinating caregivers and household members also helps protect babies too young to be vaccinated and others at high risk.
A note on changing guidance: U.S. federal vaccine recommendations have changed several times since 2025, and some changes have been challenged in court. In 2026, a federal court order kept earlier recommendations in place while the case continues. Medical groups such as the American Academy of Pediatrics (AAP), the American College of Obstetricians and Gynecologists (ACOG) and the American Academy of Family Physicians (AAFP) also publish their own recommendations. Because guidance may change, check with your doctor or pharmacist about what’s recommended for you.
When to get vaccinated
September and October are generally good times to get vaccinated, so you’re protected before flu activity peaks. But getting vaccinated later is still worthwhile as long as flu is spreading, often into spring. Children who need two doses (some children 6 months through 8 years old) should start early.
What’s new for 2026-2027
According to the CDC, this season’s vaccines have been updated to better match circulating viruses, including an updated H3N2 component. All projected supply is trivalent (protecting against three flu strains), and nearly all of it is thimerosal-free.
Options for different groups
- Adults 65 and older: higher-dose, adjuvanted or recombinant flu vaccines are generally preferred because they produce a stronger immune response in older adults. If those aren’t available, a standard vaccine is better than none.
- Nasal spray vaccine: an option for many healthy, non-pregnant people ages 2 through 49. Some nasal spray vaccine can now be given at home.
- Egg allergy: people with egg allergy can receive any age-appropriate flu vaccine.
Side effects
Most side effects are mild and short-lived, such as a sore arm, low-grade fever, headache or muscle aches. The flu shot can’t give you the flu because it doesn’t contain live virus. Serious allergic reactions are rare.
How well does it work?
Effectiveness varies from year to year depending on how well the vaccine matches circulating viruses. Even when it doesn’t prevent infection, vaccination can reduce the severity of illness and the risk of hospitalization. People with asthma should read about asthma and the flu.
What this means for you
Ask your doctor or pharmacist which flu vaccine is right for you and when to get it. Many pharmacies offer flu shots without an appointment. Check with your insurance plan about coverage.
The bottom line
An annual flu vaccine is one of the best ways to protect yourself and your community. Aim to get vaccinated in early fall, and ask about the best option for your age and health.
Common questions
Can I get the flu shot and COVID-19 vaccine at the same time?
Yes. They can be given at the same visit, which many people find convenient.
Why do I need a flu shot every year?
Flu viruses change, and protection from the vaccine fades over time, so an updated vaccine is needed each season.
This article is for general information and isn’t medical advice. Talk with your healthcare provider about your individual needs.
