The seasonal flu vaccine protects against the influenza viruses that research suggests may be most common during the upcoming season. Below are links to more information about the different type of flu vaccines available. The high dose vaccine contains 4 times the amount of antigen the part of the vaccine that helps your body build up protection against flu viruses as a regular flu shot and is licensed specifically for people 65 years and older.
Adjuvanted flu vaccine is made with an ingredient added to a vaccine that helps create a stronger immune response and is licensed specifically for people 65 years and older. Recombinant flu vaccines are produced using a method that does not require an egg-grown vaccine virus. To receive weekly email updates about Seasonal Flu, enter your email address:. Skip directly to site content Skip directly to page options Skip directly to A-Z link. Influenza Flu.
Different influenza shots are licensed for different age groups. These four vaccines are approved for people 6 months of age and older.
Most influenza shots are given in an arm muscle with a needle. One quadrivalent influenza shot Afluria Quadrivalent can be given either with a needle for people aged 6 months and older or with a jet injector for people aged 18 through 64 years only.
A quadrivalent cell-based influenza shot Flucelvax Quadrivalent containing virus grown in cell culture, which is licensed for people 4 years and older. This vaccine is egg-free. Recombinant quadrivalent influenza shot Flublok Quadrivalent , an egg-free vaccine, approved for people 18 years and older. A quadrivalent flu shot using an adjuvant an ingredient that helps create a stronger immune response , Fluad Quadrivalent, approved for people 65 years of age and older.
A quadrivalent high-dose influenza vaccine Fluzone High-Dose, which contains a higher dose of antigen to help create a stronger immune response, licensed for people 65 years and older. A live attenuated influenza vaccine FluMist Quadrivalent , which is given intranasally. This vaccine is approved for people 2 through 49 years of age. Live attenuated influenza vaccine should not be given to people who are pregnant, immunocompromised persons, and some other groups.
There are many flu 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. Influenza Vaccine Products for the Season. Additional considerations concerning the timing of vaccination for certain groups include: Adults, especially those 65 years and older, should generally not get vaccinated early in July or August because protection may decrease over time, but early vaccination can be considered for any person who is unable to return at a later time to be vaccinated.
Children can get vaccinated as soon as vaccine becomes available, even if this is in July or August. Some children need two doses of flu vaccine. For those children it is recommended to get the first dose as soon as vaccine is available, because the second dose needs to given at least 4 weeks after the first.
Early vaccination can also be considered for people who are in the third trimester of pregnancy, because this can help protect their infants during the first months of life when they are too young to be vaccinated. Find flu vaccines in your area. Everyone 6 months of age and older needs a flu vaccine. Flu vaccination can keep you from getting sick with flu. For example, during flu vaccination prevented an estimated 7. During seasons when flu vaccine viruses are similar to circulating flu viruses, flu vaccine has been shown to reduce the risk of having to go to the doctor with flu by 40 percent to 60 percent.
Flu vaccination has been shown in several studies to reduce severity of illness in people who get vaccinated but still get sick. A study external icon showed that among adults hospitalized with flu, vaccinated patients were 59 percent less likely to be admitted to the ICU than those who had not been vaccinated. Among adults in the ICU with flu, vaccinated patients on average spent 4 fewer days in the hospital than those who were not vaccinated.
Flu vaccination can reduce the risk of flu-associated hospitalization. Flu vaccination prevents tens of thousands of hospitalizations each year. For example, during flu vaccination prevented an estimated , flu-related hospitalizations. A study found that during , flu vaccines reduced the risk of flu-associated hospitalization among older adults by about 40 percent on average. A study showed that from to , flu vaccination among adults reduced the risk of being admitted to an intensive care unit ICU with flu by 82 percent.
Flu vaccination is an important preventive tool for people with certain chronic health conditions. There are several reasons why someone might get flu symptoms, even after they have been vaccinated against flu. In adults, studies have not shown a benefit from getting more than one dose of vaccine during the same influenza season, even among elderly persons with weakened immune systems.
Except for children getting vaccinated for the first time , only one dose of flu vaccine is recommended each season. A study external icon that suggested that flu vaccination might make people more susceptible to other respiratory infections. After that study was published, many experts looked into this issue further and conducted additional studies to see if the findings could be replicated.
No other studies have found this effect. There is no evidence that getting a flu vaccination increases your risk of getting sick from a coronavirus, like the one that causes COVID You may have heard about a study external icon published in January that reported an association between flu vaccination and risk of four commonly circulating seasonal coronaviruses, but not the one that causes COVID This report was later found to be incorrect.
The results from that initial study led researchers in Canada to look at their data to see if they could find similar results in their population. The Canadian findings highlighted the protective benefits of flu vaccination. The Canadian researchers also identified a flaw in the methods of the first study, noting that it violated the part of study design that compares vaccination rates among patients with and without flu test negative design. This flaw led to the incorrect association between flu vaccination and seasonal coronavirus risk.
When these researchers reexamined data from the first study using correct methods, they found that flu vaccination did not increase risk for infection with other respiratory viruses, including seasonal coronaviruses. Influenza flu vaccine effectiveness VE can vary. During years when the flu vaccine match is good, it is possible to measure substantial benefits from flu vaccination in terms of preventing flu illness and complications. However, the benefits of flu vaccination will still vary, depending on characteristics of the person being vaccinated for example, their health and age , what influenza viruses are circulating that season and, potentially, which type of flu vaccine was used.
For information specific to this season, visit About the Current Flu Season. There are many reasons to get an influenza flu vaccine each year.
Flu vaccination is the best way to protect yourself and your loved ones against flu and its potentially serious complications. Below is a summary of the benefits of flu vaccination and selected scientific studies that support these benefits. Despite the many benefits offered by flu vaccination, only about half of Americans get an annual flu vaccine and flu continues to cause millions of illnesses, hundreds of thousands of hospitalizations and tens of thousands of deaths.
Many more people could be protected from flu if more people got vaccinated. While delaying getting of vaccine until later in the fall may lead to higher levels of immunity during winter months, this should be balanced against possible risks, such as missed opportunities to receive vaccine and difficulties associated with vaccinating a large number of people within a shorter time period.
If it helps, think of antibodies as the blue ink that explodes if somebody tries to steal something; now we all know who the thief is. You go seek and destroy everybody wearing this. You go beat the hell out of anything and anybody who looks like him. So is the flu vaccine live? It is nothing more than the protein coat of influenza with all of the DNA removed. It is an empty shell of a uniform. Basically, at this time next year, the flu is going to be wearing a different uniform, and getting a flu shot is the best chance you have to avoid influenza.
Trying to anticipate, replicate, and mass produce a flu viruses protein coat over about a four-month period seems to be one of the most difficult and thankless jobs in the United States.
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