how long do symptoms last after flu vaccine?
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The most common side effects from flu shots are soreness, redness, tenderness or swelling where the shot was given. Low-grade fever, headache and muscle aches also may occur. If these reactions occur, they usually begin soon after the shot and last 1-2 days.
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There are common side effects associated with the flu shot, but generally they are mild and primarily involve soreness, redness, swelling, and tenderness at the injection site. A low grade fever, headache, and muscle aches may occur. Such side effects last, at most, a couple of days.
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How Long Does the Flu Last? Fever and other flu symptoms often go away after 5 days or so, but kids may still have a cough or feel weak. Children's symptoms are usually all gone in a week or two.
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Most children recover from the flu within a week. But they may still feel very tired for as long as 3 to 4 weeks. A cold is usually mild and often goes away after a few days.
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There is no side-stepping the fact that flu shots can cause side effects, especially in younger children who may be getting their shots for the first time. Most typically last a day or two and are almost always mild. Possible flu shot reactions may include: Fatigue.
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Influenza vaccine side effects are generally mild and go away on their own within a few days. Some side effects that may occur from an influenza shot include soreness, redness, and/or swelling where the shot was given, headache (low grade), fever, nausea, muscle aches, and fatigue.
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Protective immunity doesn't develop until 1–2 weeks after vaccination. Some people who get vaccinated later in the season (December or later) may be infected with influenza virus shortly afterward.
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This vaccine is very safe and effective. There may be some redness, swelling, or pain at the place where the needle went into the arm or leg. Your doctor can tell you how to control the pain. Between 6 to 23 days after the vaccine, some people will have a mild fever and sometimes a mild rash lasting 1-3 days.
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Some possible downsides to flu shots include: only about 40–60% of flu shots are effective in preventing the flu each year. they can take up to 2 weeks to start working. sometimes, they cause mild side effects, such as pain, redness, and swelling at the injection site.
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Shot sites can have swelling, redness and pain. Most often, these symptoms start within 24 hours of the shot. They most often last 2 to 3 days.
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Soreness in your arm after getting a flu vaccine typically lasts no longer than one or two days. The pain and inflammation is your body's natural response to a foreign invader. It's a sign that your immune system is making antibodies, which is what offers you the protection from getting the actual virus.
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It takes up to two weeks to build immunity after a flu shot, but you can benefit from the vaccine even if you don't get it until after the flu season starts. It's usually best for people in the United States to get their flu vaccine by the end of October.
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Protection Doesn't Happen Immediately How long until the flu vaccine is effective can vary from person to person, but generally it takes two weeks after vaccination for the body to develop antibodies that provide protection against flu viruses. This is why it's important to not delay immunization.
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The effects of the vaccine generally only last through one flu season, which is about six months long. That's part of the reason you need one every year. Starting two weeks after you get a flu shot, you should be protected from certain influenza viruses for the remainder of that flu season.
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After the flu vaccination, you may get a mild fever and slight muscle aches for a day or so. Some people may have a sore arm after vaccination. For example, if you're aged 65 or over and having the adjuvanted flu vaccine.
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Flu symptoms may be bad, but they usually get better within a few days. A cold can last up to 10 days. But pneumonia symptoms can stick around up to a month or longer. And bronchitis can last several months in some cases.
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The flu vaccine can't give you the flu. But you might develop flu-like symptoms — despite getting a flu vaccine — for a variety of reasons, including: Reaction to the vaccine. Some people experience muscle aches and a fever for a day or two after receiving a flu vaccine.