Why do younger people have more side effects from the vaccine?

Unlike older adults, the mild side effects of the COVID-19 vaccine are more intense in young people, although they subside after a few hours.

First is the euphoria. After months of isolation, extreme hygiene measures and one shared hysteria at home to prevent a COVID-19 infection from reaching someone, it seems that receiving a vaccine is the best thing that could have happened to us. And to a large extent it is: at the broadest level, it is a mighty step to see the end of the pandemic. In the most immediate, a few hours later the side effects begin — and the initial ecstasy becomes questionable.

Do all side effects hit the same?


Despite the fact that a priori it would be normal for side effects to manifest more severely in older people, young people around the world have suffered diarrhea, confusion, headaches, fever, joint pain, and even vomiting they are among the most common. A recent study published in The Lancet even assures that the younger people, women and recovered COVID-19 patients they are much more likely to have these symptoms after either dose — or both.

According to Stephanie Gras, an immunologist at La Trobe University, these reactions are “really normal” and don’t last long:

“We know that side effects are not very pleasant, but they are actually a very good sign that your immune system is working,” explains the expert.

The study considered more than 627 thousand people who received the first or second dose in the United Kingdom. All participants received the Pfizer or AstraZeneca alternatives. According to the survey, most of the side effects appeared within 24 hours of application, and they became milder in the following 48 hours.

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Every body is different

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The immune response of each organism defines the severity of the symptoms. In general, the researchers divided the side effects into two categories: local and systematic. The first correspond to the reactions that occur near where the vaccine was applied. The second refer to those that affect the whole body.

Among the local symptoms, the reddening of the skin, the arm pain and swelling Are frequent. Also, it can cause itching and swelling of the lymph nodes in the armpits. In the case of systematicians, the fatigue, migraine, chills, diarrhea, and nausea. Finally, even in the youngest, the body is defending itself against a mild COVID-19 infection.

In the case of the Astra Zeneca vaccine, it is much more common to feel symptoms after the first dose. In the case of Pfizer, however, side effects are likely after both doses. Furthermore, serious consequences are very rare, such as Guillain-Barré syndrome and inflammation of the heart. Despite this, according to National Geographic coverage, medical attention should only be sought if these symptoms continue after two days of receiving any doses.

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