Types of Flu Vaccines
The virus that causes flu is constantly changing, so flu vaccines are updated each year to protect against the flu virus that is currently spreading.
There are many types of flu vaccines. Most types are given as a shot in the upper arm. The flu vaccine is also offered as a nasal spray, but the nasal spray is not recommended for people who are pregnant or people with a weakened immune system.
There are a large variety of flu vaccines so that even people with egg allergies, pregnant people, and people with chronic health conditions can get vaccinated with a vaccine that is appropriate for them.
If you have questions about which vaccine is best for you, talk to your doctor or other health care professional.
Vaccine Updates for the 2023-2024 Flu Season
- The 2023-2024 season U.S. flu vaccines will contain an updated influenza A(H1N1)pdm09 component:
- A/Victoria/4897/2022 (H1N1)pdm09-like virus for egg-based vaccines
- A/Wisconsin/67/2022 (H1N1)pdm09-like virus for cell-based or recombinant vaccines.
- Anyone with any history of egg allergy, regardless of severity, may receive any flu vaccine (egg-based or non-egg-based) that is otherwise appropriate for their age and health status.
The best way to prevent flu and its potentially serious complications is by getting a flu vaccine every year.
Possible Side Effects
Some people do experience side effects with the flu vaccine. These generally resolve in a few hours or days. These side effects may include:
- Injection site reactions such as soreness, redness, and swollen arm
Fever
- Muscle Aches
- Headache
- Fatigue
In rare cases, a person should not get the flu shot. If you feel that you might fall into this category you should speak to your health care provider.
Get Vaccinated Today!
- Search for Flu vaccine locations near you at www.vaccines.gov/find-vaccines/
- Find a vaccine provider near you at https://findahealthcenter.hrsa.gov/
- Speak to your healthcare provider
- Call your local or state health department
- Visit your local pharmacy
- Locate a Vaccines For Children provider for free vaccines for children who qualify at https://health.mo.gov/living/wellness/immunizations/vfc-parents.php
Other Resources
Last Reviewed: October 24, 2023