![]() ![]() Sometimes the local reaction is a response to the adjuvant in the formulation, Dr. “For example, local reactions like pain and swelling at the site of the injection, which is caused by inflammation from injection itself, may occur just as you would get pain and swelling from a bruise or a penetrating injury such as a piece of glass or a nail,” he says. There are different reasons for reactions to vaccines, says Eugene Shapiro, MD, a pediatric infectious diseases specialist at Yale Medicine. Why Do Some Vaccines Make Us Feel Worse Than Others? The good news: Most common side effects are a sign that the body is starting to build immunity against a disease. Vaccines work by helping the body learn how to fight against a disease without the dangers of full-blown infection, according to the Centers for Disease Control and Prevention (CDC).Ī vaccine contains weakened or inactive parts of the disease-causing organism (called an antigen), or a blueprint for producing the antigen that prompts the immune system to respond. Soreness, redness, or swelling where the shot was givenįainting is less common but can happen after any medical procedure, including vaccinations.The most common side effects of vaccines include: In general, most side effects are mild and temporary, lasting only a few days. The specific type and frequency of side effects can vary depending on the type of vaccine, the individual's age, and their overall health. ![]() Most people don’t have serious side effects from vaccines, according to the U.S. These effects can range from mild, such as soreness at the injection site or low-grade fever, to less common but potentially serious reactions. Vaccine side effects are any observable changes or reactions that occur after receiving a vaccine. Here’s what you need to know about vaccine side effects and expert tips in reducing their impact - while keeping all the protective benefits. While it is true that vaccines may be associated with certain side effects (as with any medical intervention), it’s important to emphasize that the benefits of vaccination far outweigh the risks, and most side effects are mild and go away in a day or two.īut why do some people get hit harder than others by the aftereffects of a jab? And are there ways to minimize side effect symptoms of getting a vaccine without impacting the efficacy? Let’s be real: The thought of having a sore arm, fatigue, or just feeling lousy all over can make many of us put off scheduling a vaccine. ![]()
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