FDA authorizes second booster dose of Pfizer and Moderna’s Covid vaccine for people over 50 years of age

Estas son las condiciones para recibir el segundo refuerzo de la vacuna.


These are the conditions to receive the second booster of the vaccine.

Photo: HOTLI SIMANJUNTAK / EFE

Although in recent days the health authorities of the United States have ruled out that a great wave of Covid infections like those that have recently been registered in other nations such as China and the United Kingdom can be experienced again, new measures are being taken to put a stop to it. to the pandemic.

That is why this Tuesday, the US Food and Drug Administration (FDA, for its acronym in English) authorized the application of the second booster dose of the Pfizer/BioNTech and Moderna vaccines for those over 50 years of age and some immunosuppressed.

This second booster dose It can be applied 4 months after the first booster has been placed. In the case of the immunosuppressed, the FDA indicated that Pfizer’s vaccine will be available in the population over 12 years of age and who have undergone an organ transplant, while Moderna’s will be available in those over 18, with the same level of immunosuppression.

According to the FDA, there is scientific evidence that there is a decrease in the protection of vaccines over time, so “a second reinforcement would help increase the levels of protection of people at higher risk.”

In addition, the agency stated that “the benefits” of a second booster dose “outweigh the risks” of its application.

In making this decision, the FDA relied on data provided by the Israeli Ministry of Health, which already administers second Pfizer booster doses to adults, and independent studies on Moderna, among other analyses.

The United States began applying the first booster doses in September of last year for people at higher risk, and currently everyone over 12 years of age who has completed their vaccination schedule can receive it.

65.5% of the US population has the complete vaccination schedule and, of them, 44.8% have applied the first booster dose, according to data from the Centers for Disease Control and Prevention (CDC).

Last February, the CDC concluded in a study that the effectiveness of the reinforcements decreased after four months of supply.

The United States is the country hardest hit by the pandemic in absolute numbers, with 80 million infections and 944,000 deaths, according to a count by Johns Hopkins University.

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