Who Should Get a Flu Shot
The Centers for Disease Control and Prevention (CDC) says everyone over 6 months old should get one. It’s even more important if you’re at high risk for serious complications from the flu, if you have frequent exposure to the general public (healthcare workers, emergency personnel, etc.), or if you are a caregiver in close contact with high-risk individuals.
For seasonal flu, high-risk groups include:
Children aged 2 and younger Adults over age 65 People living in a long-term care facility People with weakened immune systems Pregnant women or those who gave birth in the past two weeks
People with chronic health conditions are also considered high risk. Conditions and circumstances that are known to increase your risk of serious flu complications include:
AsthmaNeurological/neurodevelopmental conditionsBlood disorders, including sickle cell diseaseChronic lung disease, including cystic fibrosis and chronic obstructive pulmonary disease (COPD)Endocrine disorders, including diabetesHeart diseaseKidney or liver disordersMetabolic disordersObesityAnyone with a weakened or suppressed immune system due to illness or medicationPeople under 19 who are on long-term salicylate-containing medications, including aspirin
Who Shouldn’t Get a Flu Shot
The flu vaccine is not right for everyone. You should not get a flu shot if you have:
Fever or moderate to severe illness at the time of vaccination History of previous severe or life-threatening allergic reaction to a flu shot
Infants under 6 months old should also not receive the flu shot. Additionally, if you have a history of Guillain-Barré syndrome after previous flu vaccinations, talk to your healthcare provider before getting a flu shot again.
Egg Allergy: Important Changes
If you have an egg allergy, talk to your healthcare provider about whether the flu shot is right for you. Egg allergies used to be a reason to avoid flu shots, but newer research has indicated that even people with severe egg allergies may be able to safely get the flu vaccine under proper supervision.
Some flu vaccines are now available that aren’t grown in eggs, so the threat of a reaction for people with egg allergies is eliminated.
When You Should Get Vaccinated
The seasonal flu vaccine is different every year. The formula is based on what experts believe are the strains most likely to cause illness the following season. Therefore, it is important to get a flu shot every year.
The flu shot takes two weeks to become effective after it is given, so it’s best not to wait until people around you start getting the flu before you’re vaccinated.
If you’re at high risk for the flu and related complications, you should get your vaccine as soon as it becomes available.
Some people think that if they get the flu, there’s no reason to get the flu vaccine. However, that’s not the safest approach. Typically, multiple strains of the flu virus go around each year. While the flu shot can protect against three strains of flu (trivalent) or four strains (quadrivalent), just because you get a strain of influenza A in December doesn’t mean you can’t get a different strain of influenza B later in the season.
Is It Ever Too Late?
Flu shots are typically given in the early fall through March or April. CDC recommends getting a flu shot by the end of October. However, as long as the flu virus is making people sick in your community, it’s worth getting vaccinated against it. It won’t provide full protection immediately, but it could still prevent you from getting sick.
Where to Get a Flu Shot
You have many options for where to get a flu shot, including:
Your healthcare provider’s office Pharmacies Walk-in clinics Grocery store clinics Hospitals Local health department Flu clinics (Use the CDC’s Flu Clinic Locator for locations. )
Many employers and schools often offer flu shots on-site during special vaccination events as well.
If you have significant health issues or an egg allergy, your healthcare provider’s office is the best place to get your flu shot. Your practitioner should know your medical history and will know if there is any reason you should not have a flu vaccine or if one type is better for you than another. They can also monitor for adverse reactions, if necessary.
Administration of the Vaccine
In adults, the flu vaccine is typically injected into an arm muscle. However, the vaccine is also available in several forms for which administration differs:
In children, it’s generally given as a shot in the upper arm or thigh. It’s also available as a nasal spray vaccine; however, the inhaled form is not for use in children under 2 years old, pregnant people, adults over 49, people with weakened immune systems, or anyone age 2 to 4 with asthma. There is a precaution for those age 5 and up who have asthma, but this doesn’t mean the vaccine is contraindicated for this group. Talk to your healthcare provider if you have asthma. The Fluzone intradermal flu vaccine is available and administered using a much smaller needle than the traditional flu shot. A high-dose vaccine is available for older adults age 65 and up.
Talk to your healthcare provider to determine what type of vaccination is available in your area and which one is right for you.
Side Effects
Most flu vaccine side effects are minor. Some of the more common side effects include:
Low-grade feverSoreness at the injection siteDecreased energy
Contrary to rumor, you cannot get the flu from the flu shot.
Contact your healthcare provider immediately or go to the emergency room if you experience:
Severe swellingDifficulty breathingNumbness
These are signs of allergy or serious complications and could be fatal.
A Word From Verywell
Nearly everyone should get a seasonal flu vaccine. It’s important for preventing the flu in yourself and others. Although flu shots aren’t perfect and won’t always prevent illness completely, those who are vaccinated have significantly milder symptoms if infected and are less likely to be hospitalized or have serious complications as a result of the virus.
If you are unsure whether the flu vaccine is right for you or your family, talk to your healthcare provider.
