2019 flu shot side effect11/22/2023 ![]() ![]() Muscle aches: You might feel sore all around (similar to how you might feel after a new workout).Nausea: Feeling nauseous is another normal and common immune system response to the flu vaccine.(A low-grade fever is roughly 99.9 to 100.4 degrees Fahrenheit, according to the CDC.) Fever: Some people have a mild, low-grade fever within the first 24 hours or so after getting their flu shot.Like other side effects, this should let up within a couple of days. Mild headache: A mild headache may set in the day of your flu shot.Dizziness or fainting: Needles can be scary, and some people might become lightheaded or even faint due to anxiety or nerves about getting poked.Redness or swelling near the injection site: Your arm might be reddened and look larger or puffier than normal due to inflammation.Soreness near the injection site: You might have a dull ache and some mild swelling due to inflammation in the area where you received your flu shot.Here are the most common ones you might experience: Sometimes your immune system does this without causing noticeable symptoms, but other times, you’ll experience a few minor side effects as a result. It usually takes about two weeks for those to kick in and offer you protection, per the CDC. “Your immune system will start to rev up in response.” These dead, partial, and weakened viruses are enough to provoke your immune system to develop antibodies to guard you against live and threatening flu viruses. Adalja, M.D., senior scholar at the Johns Hopkins Center for Health Security, tells SELF. “When you get any type of vaccine, the whole purpose is to expose your immune system to the virus,” infectious disease expert Amesh A. Neither form of the vaccine contains live flu viruses that can thrive in your body. Here’s how it works: The flu shot contains inactivated (completely dead) or incomplete strains of the influenza virus, while the nasal spray contains live attenuated (weakened) strains. You might think that side effects are a bad thing, but they’re actually signs that your immune system is responding and getting ready to protect you. Anyone who might transmit flu to someone at risk.What are common flu vaccine side effects to expect?Īccording to the CDC, you may experience short-lived, minor side effects of the flu shot or nasal spray vaccine-as is the case with any vaccination or medication.People who live in nursing homes and other long term care facilities.Children aged 6 months through 18 years on long-term aspirin therapy.People with muscle and nerve disorders that make it difficult to breath or swallow. ![]() People of any age with certain chronic medical conditions like asthma, diabetes, heart disease, kidney disease, neurologic and neuromuscular conditions and weakened immune systems.Children aged 6 months through 18 years.More information is available at Flu & People 65 Years and Older. If none of these three preferred vaccines are available, any age-appropriate flu vaccine may be used. People 65 years of age or older are recommended to receive the following three preferential flu vaccines: Fluzone High-Dose Quadrivalent vaccine, Flublok Quadrivalent recombinant flu vaccine and Fluad Quadrivalent adjuvanted flu vaccine. It is especially important that the people in one of the groups listed below get a flu shot every year as they are more likely to get severely ill with flu. ![]() Everyone 6 months of age and older should be vaccinated for flu. ![]()
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