FDA may approve mixing and matching COVID-19 booster shots


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189.5 million Americans fully vaccinated

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According to reports, the US Food and Drug Administration (FDA) may allow mixing and matching of COVID-19 vaccine booster doses this week.

An upcoming announcement by the agency is anticipated as the campaign for additional shots continues and as more Americans return for a third jab.


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Associated Press reported On Tuesday — citing a US health official familiar with the matter — that news would be put up with authorization for boosters for Moderna and Johnson & Johnson shots, though the FDA was still predicted to say that the same brand A booster was the better option to use and especially for mRNA vaccines from Pfizer and Moderna.

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The FDA declined to comment.

Last month, the regulator Is it okay to take the third dose for the Pfizer/BioEntech vaccine? For many Americans and last week the US said it would recognize a combination of vaccines administered abroad for the purpose of entering the country.

Whether receiving a different COVID-19 vaccine booster from the one initially received may simplify the booster process – in addition to allowing people with an adverse reaction to the initial dose to try a different shot – questions remain. .

Moderna has applied for its boosters to be half of the original dosage, but a National Institutes of Health study of booster combinations uses full-strength additional doses.

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Preliminary results found that an additional dose of either type increased the amount of virus-fighting antibodies, with the most notable response seen in those receiving a single dose of Johnson & Johnson vaccination.

The New York Times reported on Tuesday that vaccine providers can also use their discretion to offer a different brand.

The paper said the FDA was anticipated to authorize Moderna and Johnson & Johnson boosters by Wednesday night and that the US Centers for Disease Control and Prevention (CDC) advisory committee would consider the matter on Thursday before issuing its recommendations. .

The Times said officials are expected to authorize a booster for Moderna’s vaccine about six months after the second shot and a Johnson & Johnson booster at least two months after the first dose.

They also pointed out that the Mix and Match Study researchers cautioned against using the findings to conclude that any combination of vaccines was better than others.

It all comes after lengthy discussions about the need for booster shots, as vaccines in the US remain effective against hospitalizations and deaths from the virus and its delta variant.

More than 189 million Americans have been fully vaccinated, according to CDC data.


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