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- According to the Center for Disease Control & Prevention, the influenza vaccine will not actually give you the flu.
- However, people who get the flu shot may experience muscle pain, fever, or nausea.
- The CDC has not updated its recommendations for the 2019-2020 influenza season, but it is usually best to get vaccinated before November.
You are vaccinated against the flu to avoid getting sick, but it is not uncommon to feel miserable after receiving your annual vaccine.
Many people mistakenly believe that the flu vaccine will cause you to catch the flu. In fact, it's one of the biggest myths about the flu shot. In fact, according to a report published in 2015 by 1,000 people in Vaccine, 43% think that being vaccinated against the flu could give you the flu.
"The influenza vaccine is a killed flu virus that is only half of the virus – the part to which you must bring an immune response," Andrew Pekosz, Ph.D., professor of molecular microbiology and immunology at the Bloomberg School of the Johns Hopkins University of Public Health, explained to Mens Health. "It's also given in the muscle of your arm, which is not a place where the flu virus is transmitted normally, so you can not catch the flu with the flu shot."
However, you may feel discomfort with the shot itself, which is very similar to flu symptoms. At present, the CDC does not have up-to-date information on the side effects of the 2019-2020 influenza vaccine. However, the side effects of the 2018-2019 season include:
- Swelling, redness or pain near the shot
- Headache
- Fever
- Nausea
- Sore muscles
"Most people have some redness and pain at the site of inoculation, these are normal symptoms that are due in part to your body's immune system reaction to the vaccine," said Pekosz.
What's new with the 2019-2020 flu vaccine?
There are many types of influenza viruses and everyone is constantly changing. This means that US vaccines are tested every year to prevent influenza viruses currently circulating. The influenza vaccine protects against three or four viruses that, according to the researchers, will be the most prevalent. Trivalent or tri-component vaccines for the coming influenza season will protect against the following:
- A / Brisbane / 02/2018 (pdm09 virus)
- Virus type A / Kansas / 14/2017 (H3N2)
- Virus type B / Colorado / 06/2017 (Victoria lineage)
In addition, some vaccines may also protect against type B / Phuket / 3073/2013 virus (Yamagata lineage).
This is slightly different from the protection of last year, which included:
- A / Michigan / 45/2015 (H1N1) virus related to pdm09
- A / Singapore / INFIMH-16-0019 / 2016 virus type A (H3N2)
- Virus type B / Colorado / 06/2017 (Victoria lineage)
This year's flu season updates are available at https://www.cdc.gov/flu/season/flu-season-2019-2020.htm
How common are the side effects?
About 23% of health care workers who received the H1N1 flu vaccine reported widespread pain or low back pain, according to a 2011 report in Vaccine.
Vaccination is the traditional method of vaccination, but people can opt for the FluMist vaccine, administered by nasal spray.
Side effects of FluMist 2018-2019 vaccine include:
- Runny nose or nasal congestion
- Fever
- Irritated throat
- Sore muscles
- Decreased appetite
- Wheezing
- Cough
- Vomiting
The CDC is a special method, but FluMist is not recommended for pregnant women, people under two years of age or older, people with weakened immune systems or children with asthma.
Fortunately, the symptoms do not last long. "Usually, they do not last more than a day or two," said Pekosz.
In rare cases, some may meet. Symptoms include difficulty breathing, hives, swelling around the eyes or mouth, weakness or dizziness. Generally, these symptoms manifest themselves a few minutes to hours after the administration of the vaccine.
If you really feel sick for a long time, you have probably caught another virus against which the flu vaccine does not protect you.
"The flu vaccine protects against the flu virus, but a number of other viruses can cause an illness resembling the flu," said Pekosz. Viruses such as human parainfluenza virus, respiratory syncytial virus (RSV) and coronaviruses all circulate in the fall and early in the week. In winter, the time for influenza vaccination programs is in full swing. "These viruses and their symptoms usually last two to eight days.
BusinessInsider USA Images
Man sitting in the living room blowing his nose
Conclusion: It is normal to feel pain, redness, tenderness, or even a slight fever or aches during the two days following your vaccination – it's just your immune response, not the influenza illness itself- even.
There is therefore no reason to avoid being vaccinated against the flu because you think it will make you sick. Unless you have serious or life-threatening allergies to the influenza vaccine or any of its ingredients, you should roll up your sleeves each year, the CDC (People with Severe Allergies, Having Guillain Syndrome) -Barr or feeling sick should first talk to his doctor).
A day or two, at most, a slight discomfort is a small price to pay to help prevent getting sick from the flu. Although most people get sick with flu in days to two weeks, some people may develop complications from the virus, including sinus and ear infections, pneumonia and inflammation of the heart (myocarditis), brain ( encephalitis) or muscles. (myositis, rhabdomyolysis). It can even be deadly.
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