Can You Get the Flu Shot When Sick

Note: Prevention and Control of Seasonal Flu with Vaccines: Recommendations of the Advisory Commission on Immunization Practices — United States, 2021-2022 Influenza Season" has been published. More than data on the 2021-2022 flavor is also bachelor.

• Misconceptions nigh Flu Vaccines
• Misconceptions about Influenza Vaccine Effectiveness
• Misconceptions about the Timing of Seasonal Influenza Vaccination
• Misconceptions about Physician Consent for Vaccination
• Misconceptions almost "Stomach Influenza"

Misconceptions most Influenza Vaccines

Can a flu vaccine give you flu?

No, influenza vaccines cannot cause flu illness. Flu vaccines given with a needle (i.e., flu shots) are made with either inactivated (killed) viruses, or with simply a unmarried protein from the influenza virus.  The nasal spray vaccine contains live viruses that are attenuated (weakened) so that they will not cause disease.

Are whatever of the available flu vaccines recommended over the others?

For the 2021-2022 flu season, the Informational Commission on Immunization Practices (ACIP) recommends almanac flu (influenza) vaccination for everyone 6 months and older with any licensed, influenza vaccine that is appropriate for the recipient's historic period and health status, including inactivated influenza vaccine (IIV4), recombinant influenza vaccine (RIV4), or alive attenuated nasal spray flu vaccine (LAIV4) with no preference expressed for whatever 1 vaccine over some other.

There are many vaccine options to choose from, only the virtually important matter is for all people half-dozen months and older to get a flu vaccine every twelvemonth. If you have questions near which vaccine is all-time for you, talk to your medico or other health intendance professional.

Is it meliorate to get sick with influenza than to go a flu vaccine?

No. Flu can be a serious disease, especially amid immature children, older adults, and people with sure chronic health conditions, such as asthma, centre disease or diabetes. Any influenza infection tin can conduct a take chances of serious complications, hospitalization or death, even among otherwise good for you children and adults. Therefore, getting vaccinated is a safer choice than risking illness to obtain immune protection.

Do I really need a flu vaccine every yr?

Yes. CDC recommends a yearly flu vaccine for everyone vi months of age and older with rare exception. The reason for this is that a person'southward immune protection from vaccination declines over fourth dimension, and then an annual vaccination is needed to get the "optimal" or all-time protection against the flu. Additionally, influenza viruses are constantly changing, so the vaccine composition is reviewed each twelvemonth and updated every bit needed based on which influenza viruses are making people ill.

Why do some people not experience well afterward getting a seasonal flu vaccine?

Some people report having mild side effects after flu vaccination. The well-nigh common side furnishings from flu shots are soreness, redness, tenderness or swelling where the shot was given. Low-course fever, headache and musculus aches also may occur. If these reactions occur, they usually brainstorm presently after vaccination and last 1-2 days. In randomized, blinded studies, where some people got inactivated flu shots and others got common salt-h2o shots, the only differences in symptoms was increased soreness in the arm and redness at the injection site amongst people who got a influenza shot. There were no differences in terms of body aches, fever, cough, runny nose or sore throat.

Side furnishings from the nasal spray flu vaccine may include: runny nose, wheezing, headache, vomiting, muscle aches, fever, sore throat and cough. If these problems occur, they commonly begin before long later vaccination and are mild and brusk-lived. The almost common reactions people have to flu vaccines are considerably less astringent than the symptoms caused by actual flu illness.

• Carolyn Bridges et al. (2000). Effectiveness and cost-benefit of influenza vaccination of healthy working adults: A randomized controlled trialexternal icon .

What about serious reactions to flu vaccine?

Serious allergic reactions to influenza vaccines are very rare. If they practise occur, it is commonly within a few minutes to a few hours after vaccination. While these reactions tin can exist life-threatening, constructive treatments are bachelor.

What about people who go a seasonal flu vaccine and still become ill with influenza symptoms?

At that place are several reasons why someone might get flu symptoms, fifty-fifty after they have been vaccinated against flu.

1. Ane reason is that some people tin can get ill from other respiratory viruses besides flu such as rhinoviruses, which are associated with the mutual cold.  These viruses can cause symptoms similar to flu, and also spread and crusade illness during flu season. Flu vaccines only protect against flu and its complications, non other illnesses.
2. Another caption is that information technology is possible to be exposed to flu viruses, before long earlier getting vaccinated or during the two-week menstruation later on vaccination that it takes the torso to develop allowed protection. This exposure may result in a person becoming sick with flu earlier protection from vaccination takes effect.
3. A third reason why some people may experience flu symptoms despite getting vaccinated is that they may have been exposed to a flu virus that is very different from the vaccine viruses. The ability of a flu vaccine to protect a person depends largely on the similarity or "match" between the vaccine viruses chosen to make vaccine and those spreading and causing illness. In that location are many different influenza viruses that spread and cause illness amid people. For more than information, meet Influenza (Influenza) Viruses.
4. The last explanation for experiencing flu symptoms later vaccination is that flu vaccines  vary in how well they work and some people who get vaccinated all the same go sick with influenza. When that happens, though, vaccination has been shown in several studies to reduce severity of affliction in those people who get vaccinated but still go sick.

Can vaccinating someone twice provide added immunity?

In adults, studies have not shown a benefit from getting more than than one dose of vaccine during the same influenza season, fifty-fifty among elderly persons with weakened immune systems. Except for children getting vaccinated for the first fourth dimension, only one dose of flu vaccine is recommended each season.

Is it true that getting a influenza vaccine can make you more susceptible to other respiratory viruses?

Flu vaccines are non thought to make people more susceptible to other respiratory infections.

A 2012 written reportexternal icon that suggested that flu vaccination might brand people more susceptible to other respiratory infections. Afterward that report was published, many experts looked into this event further and conducted boosted studies to see if the findings could be replicated. No other studies take found this effect. It'southward not articulate why this finding was detected in the one study, just the bulk of bear witness suggests that this is not a common or regular occurrence and that influenza vaccination does non, in fact, make people more susceptible to other respiratory infections.

• Maria Sundaram et al. (2013). Influenza Vaccination Is Non Associated With Detection of Noninfluenza Respiratory Viruses in Seasonal Studies of Influenza Vaccine Effectivenessexternal icon.

Does a flu vaccination increase your run a risk of getting COVID-xix?

There is no evidence that getting a flu vaccination increases your risk of getting sick from a coronavirus, similar the i that causes COVID-xix.

You may have heard about a studyexternal icon published in Jan 2022 that reported an association between flu vaccination and take a chance of four commonly circulating seasonal coronaviruses, but not the i that causes COVID-19. This report was subsequently found to be incorrect.

The results from that initial written report led researchers in Canada to await at their data to see if they could find similar results in their population. The results from Canada's studyexternal icon showed that flu vaccination did non increment take a chance for these seasonal coronaviruses. The Canadian findings highlighted the protective benefits of flu vaccination.

The Canadian researchers besides identified a flaw in the methods of the outset written report, noting that it violated the function of study design that compares vaccination rates amongst patients with and without flu (examination negative blueprint). This flaw led to the incorrect clan between flu vaccination and seasonal coronavirus risk. When these researchers reexamined data from the first study using correct methods, they found that influenza vaccination did not increase risk for infection with other respiratory viruses, including seasonal coronaviruses.

Misconceptions about Flu Vaccine Effectiveness

Influenza (flu) vaccine effectiveness (VE) can vary. The protection provided past a flu vaccine varies from season to flavor and depends in part on the age and health status of the person getting the vaccine and the similarity or "match" between the viruses in the vaccine and those in circulation. During years when the influenza vaccine friction match is adept, information technology is possible to mensurate substantial benefits from influenza vaccination in terms of preventing flu illness and complications. However, the benefits of flu vaccination volition 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 more than information, see Vaccine Effectiveness – How well does the Flu Vaccine Work. For data specific to this flavour, visit About the Current Flu Season.

In that location are many reasons to get an influenza (influenza) vaccine each yr. 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 back up these benefits.

• Flu vaccination tin keep you from getting sick with flu.

• • Flu vaccination prevents millions of illnesses and influenza-related doc's visits each year. For example, during  2019-2020 flu vaccination prevented an estimated vii.5 million influenza illnesses, 3.7 million influenza-associated medical visits, 105,000 influenza-associated hospitalizations, and 6,300 influenza-associated deaths.
  • During seasons when influenza vaccine viruses are similar to circulating flu viruses, flu vaccine has been shown to reduce the risk of having to get to the doc with flu past forty percent to threescore percentage.

• Flu vaccination has been shown in several studies to reduce severity of disease in people who get vaccinated but nevertheless get sick.
  • A 2022 studyexternal icon showed that amid adults, influenza vaccination was associated with a 26% lower risk of ICU admission and a 31% lower risk of death from influenza compared to those who were unvaccinated.
  • A 2022 studyexternal 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 influenza, vaccinated patients on average spent 4 fewer days in the hospital than those who were non vaccinated.

• Flu vaccination can reduce the chance of influenza-associated hospitalization.
  • Influenza vaccination prevents tens of thousands of hospitalizations each year. For case, during 2019-2020 influenza vaccination prevented an estimated 105,000 flu-related hospitalizations.
  • A 2022 written reportexternal icon showed that influenza vaccination reduced children'southward risk of flu-related pediatric intensive care unit (PICU) access by 74 percent during influenza seasons from 2010-2012. A 2022 written report found that during 2009-2016, flu vaccines reduced the hazard of flu-associated hospitalization among older adults by about 40 percent on average.
  • A 2022 study showed that from 2012 to 2015, flu vaccination among adults reduced the risk of being admitted to an intensive care unit (ICU) with flu past 82 percent.

• Flu vaccination is an important preventive tool for people with certain chronic wellness conditions.
  • Flu vaccination has been associated with lower rates of some cardiac eventsexternal icon amid people with centre affliction, especially among those who have had a cardiac result in the past year.
  • Influenza vaccination can reduce the take chances of a flu-related worsening of chronic lung disease (for case, chronic obstructive pulmonary illness (COPDexternal icon) requiring hospitalization.
  • Amid people with diabetesexternal icon and chronic lung illnessexternal icon ,flu vaccination as well has been shown in separate studies to exist associated with reduced hospitalizations from a worsening of their chronic condition.

• Flu vaccination helps protect pregnant people during and afterwards pregnancy.
  • Vaccination reduces the risk of influenza-associated acute respiratory infection in pregnant people past about one-half.
  • A 2022 studyexternal icon showed that getting a flu shot reduced a pregnant person'south risk of existence hospitalized with flu past an average of twoscore pct from 2010-2016.
  • A number of studies accept shown that in addition to helping to protect significant people from flu, a influenza vaccine given during pregnancy helps protect the baby from flu for several months after birth, when he or she is as well immature to be vaccinated.

• Influenza vaccine tin exist lifesaving in children.
  • A 2022 study was the first of its kind to show that flu vaccination can significantly reduce a kid's risk of dying from flu.

• Getting vaccinated yourself may as well protect people around you, including those who are more than vulnerable to serious influenza illness, similar babies and immature children, older people, and people with certain chronic health weather.

Despite the many benefits offered by flu vaccination, merely nigh half of Americans get an almanac influenza vaccine and influenza continues to crusade millions of illnesses, hundreds of thousands of hospitalizations and tens of thousands of deaths. Many more than people could be protected from flu if more people got vaccinated.

*References for the studies listed above can be institute at Publications on Influenza Vaccine Benefits. Too, see the A Strong Defense Against Influenza: Get Vaccinatedpdf icon ! fact sheet.

Misconceptions about the Timing of Seasonal Influenza Vaccination

Should I wait to go vaccinated so that my immunity lasts through the end of the flavour?

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Everyone 6 months of age and older needs a flu vaccine.

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How long yous are immune or your "duration of immunity" is discussed in the ACIP recommendations. While delaying getting of vaccine until after in the autumn may lead to higher levels of amnesty 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 inside a shorter time menses.

Is information technology too belatedly to become vaccinated after Thanksgiving (or the end of November)?

No. Vaccination can still be beneficial every bit long as flu viruses are circulating. If y'all have not been vaccinated past Thanksgiving (or the end of November), it can still exist protective to get vaccinated in December or subsequently. Influenza is unpredictable and seasons can vary. Seasonal flu disease usually peaks between December and March most years, simply disease can occur as late as May.

Misconceptions almost Medico Consent for Vaccination

Do pregnant women or people with pre-existing medical conditions need special permission or written consent from their doctor to get a flu vaccine?

No. There is no recommendation for pregnant women or people with pre-existing medical weather to seek special permission or secure written consent from their physician for vaccination if they become vaccinated at a worksite clinic, chemist's shop or other location outside of their physician'due south office. With rare exception, CDC recommends an almanac flu vaccine for everyone 6 months of age and older, including pregnant women and people with medical conditions.

A variety of flu vaccine products are bachelor (Table 1). Vaccine providers should exist aware of the approved age indications of the vaccine they are using and of any contraindications or precautions. Providers also should accordingly screen all people getting vaccinated for allergies to vaccine components or other contraindications. People who have previously had a severe allergic reaction to influenza vaccine or whatsoever of its ingredients should generally non be vaccinated.

There are some people who should not become a flu vaccine without showtime speaking with their doctor. These include:

• People who have a moderate-to-astringent illness with or without a fever (they should wait until they recover to become vaccinated), and
• People with a history of Guillain-Barré Syndrome (a severe paralytic affliction, also chosen GBS) that occurred later on receiving influenza vaccine and who are not at adventure for severe illness from influenza should generally non receive vaccine. Tell your doctor if you ever had Guillain-Barré Syndrome. Your doctor will assistance you decide whether the vaccine is recommended for you.

Pregnant women or people with pre-existing medical atmospheric condition who get vaccinated should get a influenza shot.

If a person is vaccinated by someone other than their principal health care provider, the vaccinating provider should ensure that the patient and, if possible, the patient's medical provider have documentation of vaccination.

For a complete listing of people who should not go a flu vaccine before speaking with their doctor, please review the influenza Vaccine Information Argument for the inactivated or recombinant influenza vaccine or live, intranasal influenza vaccine.

Misconceptions about "Breadbasket Flu"

Is the "breadbasket flu" really flu?

No. Many people apply the term "stomach flu" to describe illnesses with nausea, vomiting or diarrhea. These symptoms can exist caused by many different viruses, bacteria or even parasites. While vomiting, diarrhea, and being nauseous or "sick to your breadbasket" can sometimes exist related to flu — more commonly in children than adults — these problems are rarely the main symptoms of flu. Flu is a respiratory illness and non a tum or intestinal disease.

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Source: https://www.cdc.gov/flu/prevent/misconceptions.htm

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