Who Should And Who Should Not Get A Flu Vaccine
Everyone 6 months of age and older should get an influenza vaccine every season with rare exception. CDCs Advisory Committee on Immunization Practices has made this recommendation since the 2010-2011 influenza season.
Vaccination to prevent flu and its potentially serious complications is particularly important for people who are at higher risk of developing serious flu complications. See People at Higher Risk of Developing Flu-Related Complications for a full list of age and health factors that confer increased risk.
More information is available at Who Should Get Vaccinated Against Influenza.
Different influenza vaccines are approved for use in people in different age groups. In addition, some vaccines are not recommended for certain groups of people. Factors that can determine a persons suitability for vaccination, or vaccination with a particular vaccine, include a persons age, health and any allergies to flu vaccine or its components. For more information, visit Who Should and Who Should NOT get a Flu Vaccine.
Signs Of A More Serious Reaction
“A very small percentage of people can have a true allergic reaction to the vaccine, including chest tightness, difficulty breathing, wheezing, facial or throat swelling and redness of the eyes,” Teague says. If you experience these symptoms, you should seek medical attention immediately. Teague says severe allergic reactions usually happen within a few hours of getting the flu shot.
Signs of a severe allergic reaction, according to the CDC, can include:
- Difficulty breathing
- Swelling around the eyes or lips
- Hives
- Weakness
- A fast heartbeat or dizziness
Another possible reaction is an infection where the shot was administered. “Patients can also develop an infection at the injection site, which is manifested as worsening redness, swelling, warmth and tenderness,” Teague says. You should also seek immediate medical attention for this type of reaction.
The information contained in this article is for educational and informational purposes only and is not intended as health or medical advice. Always consult a physician or other qualified health provider regarding any questions you may have about a medical condition or health objectives.
Yes You Can Get A Flu Shot And A Covid Vaccine At The Same Time
If youre eligible for a COVID vaccine, you can absolutely get one at the same time that you get the flu vaccine, according to the Centers for Disease Control and Prevention.
Thats true whether youre getting your first or second shot of either of the mRNA vaccines , or the one-shot Johnson & Johnson vaccine. And its very likely to hold true if and when booster shots roll out as well although the Food and Drug Administration has not yet approved them, and booster shots are not without controversy.
Theres no reason you cannot get both at once. They are not going to counteract each other in any way, Karl Minges, dean of the School of Health Sciences at the University of New Haven, told HuffPost. COVID vaccines are using a very different mechanism to vaccinate an individual than the influenza shot.
In fact, Moderna recently announced it is working to develop a joint flu shot and COVID-19 booster, combining its existing COVID vaccine with an experimental flu vaccine.
The two-for-one approach is really appealing, especially if that becomes available to people who are scared of needles or dont have the time to go to a doctors office or clinic or pharmacy to get two shots, Minges said.
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Factors That Determine Effectiveness
The vaccines effectiveness depends on the following:
- The age of the person vaccinated
- The state of the persons immune system, meaning the system that allows their body to defend itself against infections
- The degree of kinship between the virus strains circulating and those contained in the vaccine
The vaccine therefore does not offer 100% protection against the flu. The vaccine prevents the flu in about 40 to 60% of healthy people when the strains of viruses it contains correspond to strains circulating.
A strain of the virus included in the vaccine may not match the circulating strains. Indeed, the virus can evolve differently from what was predicted. As a result, the vaccine will be less effective against this strain. Nonetheless, the annual flu vaccine is still recommended, since it protects against the other strains included the vaccine that might be circulating.
For people aged 75 and over and those with chronic illnesses, the vaccine especially help reduce the risks of complications from the flu, hospitalisation and death.
Why Are Pregnant Women Advised To Have The Flu Vaccine

The flu jab will help protect both you and your baby.
There is good evidence that pregnant women have a higher chance of developing complications if they get flu, particularly in the later stages of pregnancy.
One of the most common complications of flu is bronchitis, a chest infection that can become serious and develop into pneumonia.
If you have flu while you’re pregnant, it could cause your baby to be born prematurely or have a low birthweight, and may even lead to stillbirth or death.
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How Do I Get The Flu Vaccine
Contact your midwife or GP surgery to find out where you can get the flu vaccine. It’s a good idea to get vaccinated as soon as possible after the vaccine becomes available in September.
In some areas, midwives can give the flu vaccine at the antenatal clinic. In others, you will need an appointment at a GP surgery.
Some community pharmacies now offer the flu vaccine on the NHS.
Who Should Not Get A Flu Vaccine
Children younger than 6 months cannot get a flu shot. Those who’ve had a severe allergic reaction to a flu vaccine in the past should not get that type of flu shot again, and should speak with their health care provider about whether they can receive another type of flu shot, the CDC says. Similarly, people who’ve had a life-threatening reaction to ingredients in flu vaccines besides egg proteins shouldn’t get flu vaccines with those ingredients, and should speak with their health care provider about whether there is a flu vaccine that’s right for them, the CDC says.
People with egg allergies can still receive any type of flu shot that’s recommend for their age group, even if the flu shot is made with egg-based technology , the CDC says. Studies have found that people with egg allergies are very unlikely to experience a severe reaction to flu vaccines. People who’ve had a severe allergic reaction to egg should get their flu shot under the supervision of a health care provider who can treat severe allergic reactions, the CDC says. In addition, several types of flu shots are egg-free, including recombinant flu vaccines and cell-based flu vaccines.
You should not get the flu vaccine if you have a high fever.
However, if you have minor illness, like a mild cold or a headache, you can still get a flu shot, Schaffner said. “The vaccine does perfectly well in those folks.”
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Reaction At The Injection Site
The most common side effect of the flu shot is a reaction at the injection site, which is typically on the upper arm. After the shot is given, you may have soreness, redness, warmth, and in some cases, slight swelling. These effects usually last less than two days.
To help reduce discomfort, try taking some ibuprofen before getting your shot.
Southern Hemisphere Influenza Season
The composition of virus vaccines for use in the 2018 Southern Hemisphere influenza season recommended by the World Health Organization on September 28, 2017, was:
- an A/Michigan/45/2015 pdm09-like virus
- an A/Singapore/INFIMH-16-0019/2016 -like virus
- a B/Phuket/3073/2013-like virus
The WHO recommended that quadrivalent vaccines containing two influenza B viruses should contain the above three viruses and a B/Brisbane/60/2008-like virus.
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Seasonal Flu: Vaccine And Prevention
Everyone 6 months and older should get a seasonal flu vaccination each year. Seasonal flu vaccines are safe and the most effective way to protect yourself against getting sick.
To maintain your protection, you need a flu vaccine each year. It is best to get vaccinated in the fall, but you can be vaccinated through late spring.
Flu vaccines are widely available at doctors offices, pharmacies, community health clinics and through employer-sponsored programs. Most health insurance plans cover flu vaccination without a co-pay. There are also many ways for New Yorkers without health insurance to get low-cost vaccines, including at NYC H+H sites.
Be sure to call ahead to check for vaccine availability.
Influenza germs are highly contagious and easily transmitted through contact with an infected person who is coughing and sneezing. In addition to getting vaccinated, you can prevent the flu by washing your hands often with soap and water and avoid touching your mouth, nose and eyes with unwashed hands.
High-Risk Groups
Everyone should get the flu vaccine every year. People in the following groups are more likely to get severely sick and have complications from seasonal flu, so it is especially important for them to get vaccinated.
Flu Vaccine and COVID-19
Essential workers should also receive a seasonal flu vaccine. This includes:
Are Flu Vaccines Effective Against All Types Of Flu And Cold Viruses
Seasonal flu vaccines are designed to protect against infection and illness caused by the four flu viruses that research indicates will be most common during the upcoming flu season. Flu vaccines do not protect against infection and illness caused by other viruses that also can cause flu-like symptoms. There are many other viruses besides flu viruses that can result in flu-like illness* that spread during the flu season. These non-flu viruses include rhinovirus and respiratory syncytial virus , which is the most common cause of severe respiratory illness in young children, and a major cause of severe respiratory illness in adults 65 years and older.
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Who Should Get The Flu Vaccine
According to the CDC, almost everyone at least 6 months old should get the flu vaccine every year ideally . The flu vaccine helps keep you from getting sick with the flu. And while its still possible to catch the flu after getting vaccinated, youre less likely to end up in the hospital or dying from the disease.
Its particularly important for people who are at higher risk of serious illness from the flu to get the flu shot. Those at higher risk for flu complications include but are not limited to:
- People at least 65 years old
- Children under 2 years old
- People with certain underlying conditions
- People who have weakened immune systems
- Pregnant people or people who were recently pregnant
Children under 6 months old have the highest flu hospitalization risk compared with children of other ages. But at 6 months, theyre too young to get vaccinated. Because of this, getting vaccinated during and after pregnancy and ensuring that others in contact with your child are vaccinated as well is important in protecting your babys health.
There are many flu vaccine options available. Depending on your age, underlying conditions, and allergies, you may be advised to get one option instead of another. Talk to your healthcare provider about which flu vaccine is right for you.
Click or tap here to learn more about the options available for the 20212022 flu season.
What’s Flu Activity Like This Season

Currently, flu activity remains low in most of the U.S. As of Oct. 2, 2021, all states were reporting minimal or low flu activity except for Mississippi, which reported moderate flu activity, according to the CDC.
But that could change soon after the country experienced historically low levels of flu during the 2020-2021 season , several studies have predicted that the flu could come roaring back this fall and winter, Live Science previously reported.
That’s because the U.S. population “missed the opportunity to establish or boost their immunity ” last season, which raises the concern that the flu could make a comeback as preventive measures for COVID-19 are lifted, according to the authors of a recent study on predicting flu activity, posted Aug. 30 to the preprint database medrXiv.
Even if flu activity is currently low in your community, you shouldn’t wait to get your flu shot. Flu activity could begin to increase at any time, and it takes about two weeks for people to develop antibodies against flu viruses after receiving their shot, the CDC says.
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What Kinds Of Flu Vaccines Are Available
CDC recommends use of any licensed, age-appropriate influenza vaccine during the 2021-2022 influenza season. Available influenza vaccines include including quadrivalent inactivated influenza vaccines , recombinant influenza vaccine , or live attenuated influenza vaccine . No preference is expressed for any influenza vaccine over another.
Quadrivalent flu vaccines include:
Are any of the available flu vaccines recommended over others?
For the 2021-2022 flu season, the Advisory Committee on Immunization Practices recommends annual influenza vaccination for everyone 6 months and older with any licensed, influenza vaccine that is appropriate for the recipients age and health status, including inactivated influenza vaccine , recombinant influenza vaccine , or live attenuated nasal spray influenza vaccine with no preference expressed for any one vaccine over another.
There are many vaccine options to choose from, but the most important thing is for all people 6 months and older to get a flu vaccine every year. If you have questions about which vaccine is best for you, talk to your doctor or other health care professional.
Who Should Vaccinate?
Everyone 6 months of age and older should get an influenza vaccine every season with rare exception. CDCs Advisory Committee on Immunization Practices has made this recommendation since the 2010-2011 influenza season.
More information is available at Who Should Get Vaccinated Against Influenza.
Who Should Not Be Vaccinated?
Evergreen Flu Vaccine Ingredients: The Preservatives And Additives
Beyond the three to four viral components, a number of additives and preservatives are required to make vaccines effective and to keep them from going bad. These ingredients, sometimes covered as trade secrets by drug companies in less public drugs, have led to many a conspiracy theory that anti-vaxxers would have you latch onto. Its really much more boring than that.
Here are some of the ingredients you will find in the 2021-2022 flu vaccine and why theyre there.
The Ingredient: Aluminum Salts
Use: Boosts bodys response to the vaccine
The Ingredient: Sugar or gelatin
In: Most vaccines
In: Few flu vaccines only multi-dose vials
Use: Preservative
The CDC says: Thimerosal has a different form of mercury than the kind that causes mercury poisoning . Its safe to use ethylmercury in vaccines because its processed differently in the body and its less likely to build up in the body and because its used in tiny amounts. Even so, most vaccines do not have any thimerosal in them.
The Ingredient: Egg proteins
In: Some vaccines
Use: Growing the vaccine
The CDC says: Because influenza and yellow fever vaccines are both made in eggs, egg proteins are present in the final products. However, there are two new flu vaccines now available for people with egg allergies.
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Delivery Of The Flu Shot In 2021
Not all flu shots are the same. Some arent even shots. Here are your 2021 flu vaccine options:
Nasal Spray: The nasal spray vaccine is the only kind to include a live attenuated influenza vaccine. Although it cant give you the flu, it does have a higher likelihood of inducing flu-like symptoms. This vaccine does not contain thimerosal or other preservatives. Its available only for patients aged 2 to 49.
For: People who cant stand the needle or jet spray or who want to avoid preservatives.
Inactivated shots are usually given with a needle, but Afluria Quadrivalent can be given to adults with a jet injector, which is basically a high-powered spray that penetrates the skin.
For: Needles can be used for everyone aged 6 months and older. The jet spray is approved for adults aged 18 to 64.
Influenza Immunization: Myths And Facts
Influenza vaccines are a safe and effective way to help people stay healthy, prevent illness and even save lives. The influenza virus can cause serious illness and even death in people with certain chronic health conditions.
The influenza vaccines available in B.C. are either inactivated or live attenuated vaccines. The inactivated influenza vaccine, or flu shot, is made of killed influenza viruses and is given by injection. The live attenuated influenza vaccine is made from weakened influenza viruses and is given as a nasal spray.
Many people use the term flu to refer to any illness caused by a virus, such as stomach flu or the common cold. However, the influenza virus causes illness that tends to be more severe than these viruses.
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Worried About Flu Season Vaccines And Those Breakthrough Cases Your Questions Answered
Remember that awful flu season last year? Of course you don’t. Thanks to lockdowns, closed borders, masking and other measures brought in to curb the COVID-19 pandemic, last year’s flu season was basically non-existent.
That’s likely to change this year.
Public health authorities are warning that influenza is set to make a comeback, and are urging Canadians to get their flu shot as soon as possible.
But with a number of New Brunswickers still lining up for or having recently received their first or second dose of the COVID vaccine, some are asking: Is it safe to get two shots in such quick succession? If I’m wearing a mask everywhere I go, do I even need to worry about catching the flu?
And what about all those breakthrough cases of COVID-19 doesn’t that suggest the vaccines aren’t as effective as we’d hoped?
In an interview with CBC News, Memorial University immunology professor Rodney Russell answers all of these “good questions” and more.
This interview has been edited for length and clarity.
Q: We’re still wearing masks, we’re not hugging or shaking hands as much, we’re practising physical distancing. So why are health authorities expecting this year’s flu season to be so much worse than last year’s?
Q: Since we’ve gone pretty much a whole year without the flu, will our immune response be weaker this season?
Q: How do researchers know which strains of flu we’ll be up against this year?
Q: How effective is the flu vaccine?
Where, when and how to get your flu shot