![]() ![]() Vaccines can also reduce the risk of severe flu symptoms in people who get vaccinated. A 2018 study showed that flu vaccinations prevent flu-associated admissions to the intensive care unit. People may still get the flu despite having received the vaccine. ![]() If a person develops a low-grade fever after vaccination, this means the immune system is active. Doctors state that a fever after vaccination may be due to the immunization or may occur coincidentally with an infection.Ī body temperature of 38–39☌ helps strengthen the immune system response after vaccination. A fever is common in children and infants after vaccination. Some people may develop flu-like symptoms after immunization. When the needle does not reach or bypasses the muscle, the vaccine may not be as effective, and it may cause unnecessary discomfort. Short needles may only penetrate the skin and inject the vaccine into the subcutaneous fat. Long needles can penetrate the muscle and reach the bone. The most appropriate length of the needle will depend on the size and build of the person receiving the vaccine. Other factors to consider when administering the flu vaccine include the size of the needle. If they do not apply proper technique and inject the vaccine into the shoulder joint, a person may develop a shoulder injury. Trained medical personnel inject the vaccine into the deltoid muscle, in the uppermost part of the arm. The nasal flu vaccine contains processed live viruses, and these cannot transmit the flu either. ![]() Injectable flu vaccines contain inactivated flu viruses that cannot cause the condition. People do not get the flu from the flu vaccine. People with an allergy to a component of the flu shot may experience symptoms within a few minutes to a few hours after vaccination. Sometimes people may develop a serious allergic reaction to the flu vaccine, but this is rare. People who received a placebo experienced similar rates of body aches, fever, cough, runny nose, and sore throat. The CDC report that participants in clinical studies experienced similar side effects if given a placebo or the flu shot except for increases in soreness and redness at the injection site. They are mild and much less intense than the symptoms of the flu. People may report soreness, redness, and tenderness where they received the injection.Īccording to the Centers for Disease Control and Prevention (CDC), other side effects people report may include: The flu shot may give people certain side effects, which are usually mild. Share on Pinterest VioletaStoimenova/Getty Images ![]()
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