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Flu Vaccine Not Up To Date (Overview)

The Centers for Disease Control and Prevention (CDC) recommends that everyone 6 months and older should receive the flu vaccine. The flu shot is for people age 6 months and older. Some people are more likely to get the flu or to have a severe infection if they catch it. People at risk for more serious flu infections should always get a flu vaccine every year. Older children and adults only require a single shot each year. However, children under age 9 need two shots 1 month apart the first time they receive flu vaccine or if they have not previously received two doses during one flu season.


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My baby isn't up to date on vaccines, can she still get a flu shot?

My baby isn't up to date on vaccines, can she still get a flu shot?

Yes: No problem getting the influenza vaccine (flu shot) after 6 months of age. If first timer, she will receive a 1/2 dose and repeat again 1 month later. You can still get the other catch up vaccines at the same time! ...Read more

Flu Vaccine Not Up To Date (Overview)

The Centers for Disease Control and Prevention (CDC) recommends that everyone 6 months and older should receive the flu vaccine. The flu shot is for people age 6 months and older. Some people are more likely to get the flu or to have a severe infection if they catch it. People at risk for more serious flu infections should always get a flu vaccine every year. Older children and adults only require a single shot each year. However, children under age 9 need two shots 1 month apart the first time they receive flu vaccine or if they have not previously received two doses during one flu season.


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I'm 100% up to date with all vaccines other than flu shot. Are their any vaccines I must have repeated or do most last a lifetime?

I'm 100% up to date with all vaccines other than flu shot. Are their any vaccines I must have repeated or do most last a lifetime?

Depends: Some vaccines provide time limited benefit (whooping cough, tetanus, diphtheria, meningitis, flu) while others may last a lifetime (hepatitis B series, measles, HPV series). Some of the newer vaccines have not been used long enough to know if their benefit is lifetime or a booster is needed. All adults should review their vaccine status with their doc at their regular checkups. ...Read more

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What exactly makes up a flu shot vaccine?

What exactly makes up a flu shot vaccine?

Not live...: The flu vaccine does not have any live flu virus. Rather, it consists of killed virus or protein from the virus. Your immune system then reacts against the virus protein and makes antibodies so that if your body then is exposed to the actual virus, the antibodies needed to kill it are already there. This prevents you from getting sick from the virus since the antibodies kill it first! ...Read more

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With activated vaccine can you get flu from flu shot?

With activated vaccine can you get flu from flu shot?

Nasal vs injected: What you mean by activated is unclear. There is no activated vaccine I am aware of. The injected vaccine is prepared from inactivated (killed) virus & cannot give you the flu. You can develop a shot reaction (mild) but it is not the flu. The nasal mist is a much weakened but live virus & rarely causes a mild flu like illness, but far less intense than a regular flu would be. ...Read more

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Does the flu shot an other vaccines increase histamine levels in the body?

Does the flu shot an other vaccines increase histamine levels in the body?

Flu shot: Though rare, one can develop an allergic reaction to a vaccine which causes high levels of histamine. Typically, histamine levels remain low or minimally increased after receiving a vaccine. ...Read more

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If flu shot vaccines are created from last year's flu, how can it protect against a different stem of the flu?

If flu shot vaccines are created from last year's flu, how can it protect against a different stem of the flu?

There are 3 strains: Every year a bunch of experts meet and decide what strains to put in the flu vaccine for the next season. They usually put in 3 different types, almost always one from the preceding year, and then two others that they decide on based on many factors. There is talk that they may start trying to use 5 strains in the next few years. Anyway, you should get a flu shot every year! ...Read more

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What flu vaccine should I use?

What flu vaccine should I use?

Depends: For an average healthy person, either injectable quadrivalent flu vaccine or inhaled quadrivalent flu vaccine would be reasonable choices. But if there is an egg allergy, any immune problems, or certain other complicating factors, that would impact which vaccine is used. This should be discussed between you and your doctor. ...Read more

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What are the negatives of getting a flu vaccine?

Flu shots are GOOD.: 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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Is there a swine flu vaccine?

Which one?: The general label "swine flu" has been applied to several strains of flu. A vaccine was developed to the H1N1 that circulated in 2009, and included in several seasonal flu shots since that time. Since other strains have also carried this non-specific label, you need to be more specific for a firm answer. ...Read more

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What are some vaccines that contain thermasol besides the flu shot?

Few if any: Thimerosal was removed from all routine childhood immunizations by 2002. It remains in multi-dose flu vaccine (not single dose). ...Read more

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Why are vaccines more painful than a normal yearly shot like the flu shot?

Why are vaccines more painful than a normal yearly shot like the flu shot?

I'm not sure what: Vaccines you are referring to. One vaccine that patients often say hurts more than the others is Gardasil. The Flu vaccine actually does often cause pain, as does a tetanus vaccine. The soreness is from the body's immune response to the vaccine, which means it is starting to work. Some of the pain is also from the needlestick, itself, especially those vaccines which go into the muscle. ...Read more

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Why do I have to get a flu shot every year when other vaccines I can just get once?

Why do I have to get a flu shot every year when other vaccines I can just get once?

Flu changes: The influenza virus mutates as it travels around the world each year. It arrives back changed enough that our immune system does not recognize it from the last round (or shot) this means we have to get vaccinated each year for the new "strains" of flu since our body perceives it as a new virus. Some years the virus changes more than others, leading to worse epidemics if the shot is rigged wrong. ...Read more

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How long is flu vaccine effective?

For one: Flu season. The viral strains protected against - change each year. ...Read more

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Do you know which flu vaccine should I use?

Do you know which flu vaccine should I use?

Quadrivalent flu vac: Quadrivalent flu vaccine covers most strains for influenza virus and would give protection against more strains of virus. ...Read more

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Is the 2nd shot of flu vaccine still effective?

2 dose flu vaccine: When 2 dose vaccination is used for children – the second dose should be administered 28 days after the first. Dose #1 “primes the immune system" & dose #2 provides the actual protection. ...Read more

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Could the 2nd shot of flu vaccine still effective?

Could the 2nd shot of flu vaccine still effective?

Yes: When 2 dose vaccination is used for children – the second dose should be administered 28 days after the first. Dose #1 “primes the immune system” & dose #2 provides the actual protection. ...Read more

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What foriegn countries supply flu vaccine for the usa?

What foriegn countries supply flu vaccine for the usa?

Several!: According to their package info, Fluzone and FluMist are made in the US. Fluvirin is made in the UK, Flulaval in Canada, Fluarix in Germany, and Afluria in Australia. ...Read more

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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


Dr. Mark Diamond
1,098 Doctors shared insights

Vaccinations (Definition)

Latin word for cow, vacca, because of the smallpox/cowpox work of edward jenner, vaccination is the administration of a substance, live organism or otherwise, that stimulates the immune response to prevent a specific disease. Primarily a preventative procedure, some vaccines can ...Read more