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New Vaccine Against Syncytial Virus for Older Adults and Pregnant Women: Abrysvo

In recent weeks, the approval by the US Food and Drug Administration (FDA) of a new vaccine against syncytial virus created by the Pfizer Laboratory in the United States was announced.

This vaccine, called Abrysvois oriented to older adults and pregnant women from 32 weekscausing a immunization in newborns up to six months.

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To achieve this antidote, several countries were part of the research and testing, among them, Chile. In this context, 171 pregnant Chileans participated in the realization of this vaccine through clinical trials.

In this regard, the director of clinical trials of the Institute of Biomedical Sciences, Sergio Vargasspoke with Andrea Obaid in “Your New DNA” about him Chile’s contribution to the validation of the vaccine.

This is a fascinating global effort because we spent 20 years without achieving effective and safe prevention against syncytial virus.“said the specialist.

These women received both the vaccine and the placebo to subsequently follow up the infants. The results yielded a effectiveness greater than 80%representing a success for science.

Why pregnant women?

“What is intended is thatThe mother, with her mature immune response, is capable of generating a high amount of maternal antibodies. These are transferred to infant born protected. Protection is declining very slowly, but protects you during the six months“, explained Sergio Vargas.

Specifically, the vaccine covers the infant by 80% during the first three months and by 70% at six months.

The expert explains that the vaccine does not pose any risk to pregnant women. In fact, this procedure (vaccinating pregnant women) began with the Covid-19 vaccines and there were no consequences for the pregnancy.

Pregnant women who received the Covid vaccine had normal pregnancies and their children were born protected. These are new developments“, he claimed.

Regarding the arrival of Abrysvo in Chile, It is expected that next year it will already be available.

2023-09-06 22:17:27
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