Virginie Riva, edited by Solène Leroux 6:17 am, November 23, 2021

The Scientific Council and the Orientation Council for the Vaccine Strategy now recommend the third dose for all.

For the moment, only people 65 years and over as well as people at risk of severe forms are eligible for a booster dose.

Can we have a third injection if we do not meet these criteria?

TO ANALYSE

It is a dilemma that plagues many French people, especially before the Christmas holidays and family gatherings ... Should we be injected a third dose?

For the time being, only those over 65 are in theory eligible for a booster dose, as well as people at risk of severe forms.

Those over 50 will be eligible as of December 1.

Should we go for a third dose now if we are under 65?

And if you want to do it, do you have to go see your doctor?

Should we do a serological test?

Europe 1 takes stock.

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Six months of waiting after the last injection

If you plan to have a third dose injected, it is sufficient to wait six months from the injection of your second dose or from your contamination if you have had Covid-19.

This is the only criterion.

The caregiver may not even want to take responsibility for vaccinating you if you come too early.

No need to make an appointment with your doctor to have a serological test prescribed.

Serology will not help you know if you are still protected by the vaccine.

"It is of scientific interest to know what your antibody level is and how far it goes after a vaccination", explains Alexandre Bleibtreu, infectious disease specialist.

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47% protection after five months

"But for everyone, it is not necessary. It is not because I will have 260 antibody levels that I have no risk of catching Covid-19, even if I am vaccinated ", insists the infectious disease specialist.

As we now know, the vaccine has a decrease in effectiveness against contamination over time, according to the recent study published by the medical journal

The Lancet

conducted on more than three million Americans.

Pfizer's vaccine protects 90% against infection, but that rate drops to 47% only after five months.

On the other hand, the efficacy against the risk of hospitalization remains at 93% for at least six months.