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Doctor insights on: Flu Shot Vs. Flu Mist

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Is a flu shot or flu mist more effective?

Is a flu shot or flu mist more effective?

Same effectiveness: A flu shot or flu mist are both just as effective. The flu mist has some age restrictions, and persons with some medical conditions (such as ongoing asthma symptoms) should not get the flu mist. A few years ago, a study suggested that younger children may get more protection from the flu mist, but in any one individual patient, there's no way to tell if there is a difference between shot and mist. ...Read more

Flu Shot (Definition)

Also known as influenza vaccines, flu shots are given out once a year to protect against the flu. The flu shot stimulates the immune system to build antibodies to three or four strains of flu viruses in the hopes that it will offer protection from the current strains present in the community. Each year the Centers for Disease Control (CDC) monitors the strains of Influenza globally and incorporates the appropriate antigens in the new vaccine. For best protection the vaccine ...Read more


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How many months does a flu shot provide effective protection?

How many months does a flu shot provide effective protection?

Depends: The antibody produced may last a very long time, but the particular strain of influenza encountered may have changed so that those antibodies are not effective against it. That is one reason to ensure that you receive the new vaccine yearly. It is made to protect against the most likely type of influenza to hit the community that year. Stay safe. ...Read more

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How long do I need to wait to get the tdap shot after getting a flu shot? Also when are they effective?

How long do I need to wait to get the tdap shot after getting a flu shot?  Also when are they effective?

You don't need to wt: Tdap can be given on the same day or in days prior to and after a flu shot. They do not interfere with each other so they can be given any time they are available. ...Read more

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Why can people over 50 only get a flu shot and not the mist in the nose?

Why can people over 50 only get a flu shot and not the mist  in the nose?

Testing requirements: The FluMist was tested only to 49, and was able to get approval for that. The question is whether it is effective enough compared to the shot, and whether there can be unintended consequences, such as giving the mist to a child with asthma. There would need to be further testing before the mist could be used in an older age group. ...Read more

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How can a flu shot be effective if it bypasses your iga immune system? Isn't contracting and fighting always better than introducing. Never Had a flu

How can a flu shot be effective if it bypasses your iga immune system? Isn't contracting and fighting always better than introducing. Never Had a flu

Bypass IgA?: The flu vaccine induces cellular production of IgA, IgG, & IgM. Moreover, increasing herd immunity through vaccines protects those who are unable to be vaccinated. You can check out this article from the academic journal, Immune for more info. Hope that helps! Vaccine. 2012 Aug 31;30(40):5893-900. doi: 10.1016/j.vaccine.2012.04.109. Epub 2012 Jul 24. ...Read more

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How safe is a flu shot?

How safe is a flu shot?

Very!!: Although side effects can occur, such as fever, soreness, occasional achiness, and theoretically very rare more serious problems, it is much safer than being infected with the potential side effects of the infection, up to and including death! immunize, immunize, immunize. ...Read more

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How do you give a flu shot?

Needle size: Good point on the length of the needle. I have seen offices use the 5/8" needle which is way too short to get into the muscle. You must use at least a 1" needle depending on the person you are injecting. ...Read more

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Should I get my baby a flu shot?

Should I get my baby a flu shot?

Yes: If there's no specific reason your child shouldn't receive the shot, like an allergy, then, yes, most definitely. Flu shots can be given yearly after 6 months of age. Not giving the shot is not the same as not taking a risk; you're just accepting the much larger risk of getting the illness and a serious complication. Besides hygiene/clean water, nothing compares with vaccines for health value. ...Read more

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What is the half life of a flu shot?

What is the half life of a flu shot?

Lasts through season: I'm not sure if you're asking when it will kick in, or how long it lasts... Flu shots are good for the season, since they're geared to the expected strains. They don't "wear off" so much as fail to cover the strains coming out the next fall. It takes a couple weeks for the immunity to kick in, but they should last a long while; new shot needed every fall due to new strains. ...Read more

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Why is it important to get a flu shot?

Flu isn't innocent: The flu shot is highly effective at preventing not only you from getting the flu, but from you spreading it about. Most who get the flu have high fevers, coughing, and vomiting and misery. A large group get pneumonia, and about 36k die in this country every year. Those with infants under 6mo have to get the shot so baby doesn't get it. Infants are especially susceptible to bad consequences. ...Read more

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Any side affects of getting a flu shot?

Potentially: Flu shot side effects may include: slight swelling, redness or pain at vaccination site. If headache, nausea, fever or muscular pain occur they usually resolve within one to two days. You won't get the flu from a flu shot because the virus either contains inactivated virus or doesn't have virus particles in it. Severe side effects are rare. ...Read more

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Could someone get sick from a flu shot?

Could someone get sick from a flu shot?

Flu Shots: The flu shot has inactivated virus- so it will not infect you with the flu. If you have reactions to the shot they usually resolve within one to two days. Side effects can include a low grade fever, aches & pain, and localized swelling, redness and pain at the shot site. Some people have had allergic reactions to the flu vaccine. ...Read more

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Does a flu shot have mercury in it?

Does a flu shot have mercury in it?

Multi-dose vial, yes: Thimerosal is a mercury based preservative that is in some vaccines, including flu shots packaged as a multi-dose vial. Individually packaged single-dose shots do not have preservatives. The nasal spray flu vaccine also does not contain thimerosal. The thimerosal in shots was a tiny amount, and has been removed from children's vaccines, but was not shown to be harmful to people receiving vaccines. ...Read more

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Is there side effects from a flu shot?

Is there side effects from a flu shot?

Yes, but unless you: Have a specific allergy or another reason to avoid it, you should get the shot. Every medical procedure has side effects. ...Read more

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What are the side effects of a flu shot?

What are the side effects of a flu shot?

Depends: Vast majority of the people have no side effects, other than minor soreness at the site. If you are allergic to something in the vaccine, you could have local swelling redness, pain, itching etc and in rare cases a life threatening anaphylactic reaction. There may be the usual effects of a needle stick. It is important to mention all your allergies to the person giving the shot. ...Read more

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I have diabetes. Should I get a flu shot?

I have diabetes. Should I get a flu shot?

Yes: Diabetes decreases your immune system's ability to fight infection. If you were to get the flu you could get sick enough to be hospitalized. You should get the flu shot. ...Read more

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If a person has had a pericardectomy, should they be getting a flu shot?

If a person has had a pericardectomy, should they be getting a flu shot?

Pericardectomy-when?: If Pericardectomy was long ago(manymonths) should not be a problem. There is data that older folks do not get robust antibody response, so topic of flu shots in elderly controversial. The heart muscle is coverd by 2 layers w fluid between. Inflammation between layers (poss viral cause) painful, & occas outer layer removed if antiinflam meds unsuccessful. If recently done your Internist must decide ...Read more

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Can I have a flu shot in the thigh?

Yes.: It may not be as effective though. The shot is meant to be delivered into muscle, and depending on your fat distribution, the thigh may have a thicker layer of fat that prevents the needle from reaching the muscle. ...Read more

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Dr. Mark Diamond
2,227 doctors shared insights

Fever (Definition)

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