USA evaluates dose booster plan for vaccinated 0:52
(CNN Spanish) -
It is possible that the application of a booster dose of the vaccine against covid-19 is part of the scheme to complete the immunization and is not an annual requirement, said on Tuesday Dr. Peter Marks, director of the Food and Drug Administration (FDA) Biological Research and Evaluation Center.
"I don't think we want to think that these vaccines have failed us in any way," Marks said in a debate hosted by the Covid-19 Vaccine Education and Equity Project.
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"It may just be that to get the really good kind of immunity against COVID-19 that we get with some other vaccines, a series of three vaccines may be necessary, in the same way as for Hepatitis B in adults and several primary series. of childhood vaccines it is necessary to be vaccinated (at) 0, (and) 1 or 0, 2 and 4 or 0, 2 and 6 months, "he explained.
Marks also distinguished two ways of looking at third doses: one to help people without an effective immune response, and one to address the circulation of the virus.
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"There is the third dose of the vaccine as part of the initial series for people who don't get a good immune response, that's a kind of third dose. And then there may be a third dose, or a booster, depending on how you do it. look, that will be applied to make sure we have good immunity against circulating strains of covid-19, "said Marks.
"I think we have to make sure we present this correctly."
Coronavirus Vaccine
