The Food and Drug Administration (FDA), the regulatory agency for health products in the United States, authorized this Wednesday (20) booster doses of the Janssen and Moderna Covid-19 vaccines and the application of immunizing agents other than those administered initially for reinforcement.
In a statement, the FDA advised that a single booster dose of the Moderna vaccine, which is not used in Brazil, can be administered at least six months after the second dose in people 65 years of age or older and 18 to 64 years old. at high risk of developing severe Covid-19 or with frequent exposure to the new coronavirus due to their work.
The FDA also reported that a second dose of Janssen’s vaccine, used in Brazil, can be given at least two months after completion of the single-dose primary regimen in people 18 years of age or older.
The agency further authorized the use of Covid-19 vaccines available in the United States as a heterologous booster dose (so-called “mix and match” or “mix and match”) after completion of primary vaccination with a different available immunizer .
Previously, the FDA had authorized a booster dose of the Pfizer/BioNTech vaccine at least six months after the second dose for people aged 65 years and older, at risk of serious illness or more exposed to the virus due to work.
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