Here are the 5 most common side effects of the third dose of the Covid-19 vaccine

Will the French all soon be able to receive a third dose of vaccine? The Minister of Health Olivier Véran should answer this question this Thursday, November 25 during a press conference. It should more widely present the new measures that will be taken to fight against the fifth wave of Covid-19. Three avenues are being studied according to the government spokesperson: “the acceleration of the vaccination campaign”, “the strengthening of the health pass” and the “strengthening of barrier measures and the wearing of masks”.

As a reminder, the recall campaign began last September in France. People over 65, the immunocompromised and their relatives, people at risk as well as caregivers are concerned. In the United States, all adults already vaccinated against Covid-19 can now receive a booster. They should wait at least six months after vaccination with the Pfizer or Moderna vaccine, or at least two months after the single injection vaccine from Johnson & Johnson.

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If you do decide to have a booster shot, be prepared not to overdo it for at least a day. This is because the mild side effects of the booster shot usually begin several hours after vaccination and then last for a day or two. So it is good to be ready to rest.

In the United States, more than 36 million fully vaccinated people have already received a booster shot. According to the US Federal Government’s VAERS Database (a watchdog body for tracking vaccine side effects), the most common problems people complain about after a booster shot are headaches, fatigue and fever.

Here are the top five post-vaccine symptoms, based on a sample of over 11,000 people who voluntarily entered their data into VAERS:

In the order of the table: headache, fever, fatigue, pain and chills. CDC ACIP

People who have reported symptoms related to booster shots in VAERS so far tend to be older (46% were 65 or older) and are more likely to be female (67%). But their symptoms mirror what other studies have shown more widely in people who get vaccinated, regardless of age and gender, and who complement the much larger v-safe SMS database that contains already have information on vaccine side effects for more than 725,900 booster doses in the United States.

Generally speaking, people who have received mRNA vaccines (Pfizer, Moderna) say that side effects after a third dose tend to be milder than after a second. The most common complaint, regardless of the vaccine used, is pain at the injection site. This complaint is so common, in fact, that people who enter their information into the VAERS system, which describes its symptoms, are much less likely to report it than other side effects.

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Less than 10% of v-safe program participants reported being unable to work after a recall. Absences from school or work tended to be more common in people who opted for the Moderna booster after the Pfizer vaccine, as the former is a higher dose vaccine which tends to have some effect. higher secondary levels, which may be linked to slightly better immune protection, at least according to some preliminary studies.

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“The reminders hopefully provide stronger and longer protection.”

Although it is more important for the elderly to get vaccinated, health experts point out that as the holiday season approaches and the increase in Covid-19 cases and hospitalizations, the reminders will help all adults stay healthy. In France, the Haute Autorité de santé recommends injecting a booster dose from the age of 40.

The extra immune protection offered by boosters against infection may not be permanent, nor perfect without broader immunization coverage, but the extra layer of immune confidence during the winter months, when people congregate in the city. inside, is a measure of many experts consider prudent at the community level.

At the individual level, receiving a booster several months after a series of primary vaccinations may also provide a stronger and longer lasting form of protection against coronavirus infections.

At least that’s what Dr. Anthony Fauci, director of the infectious diseases branch of the National Institute of Health in the United States, hopes. “This is an immunological phenomenon called affinity maturation, which means that the B cells that will make the antibodies have the opportunity to gain greater strength and – hopefully – greater durability,” a- he explained on November 22, during the White House Covid-19 briefing, explaining the advantage of the six-month interval between the second and third doses of mRNA vaccines. “I hope, and I think there is a reasonable chance, that the durability of the protection after the third dose will be longer,” he concluded.

Version originale : Hilary Brueck / Insider

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