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U.S. approves new booster of COVID-19 vaccines, "mix and match" dose

WASHINGTON: The U.S. Food and Drug Administration (FDA) on Wednesday authorized COVID-19 booster doses of Moderna and Johnson & Johnson,...


WASHINGTON: The U.S. Food and Drug Administration (FDA) on Wednesday authorized COVID-19 booster doses of Moderna and Johnson & Johnson, and approved "mix and match" booster dose for currently available approved COVID-19 vaccines.

The agency authorized the use of a single booster dose of the Moderna COVID-19 vaccine at least 6 months after completion of the primary shots to people 65 years of age and older, 18 through 64 years of age at high risk of severe COVID-19, and 18 through 64 years of age with frequent institutional or occupational exposure to SARS-CoV-2.

As for the Johnson & Johnson booster dose, the FDA authorized the use of a single booster dose at least 2 months after completion of the single-dose primary regimen to individuals 18 years of age and older.

A single booster dose of any of the available COVID-19 vaccines may be administered as a "mix and match" booster dose following completion of primary vaccination with a different available COVID-19 vaccine, according to the FDA.

For instance, a person who got a Johnson & Johnson vaccine could receive one from Moderna or Pfizer-BioNTech as a booster.

"The available data suggest waning immunity in some populations who are fully vaccinated," said Acting FDA Commissioner Janet Woodcock in a statement. "The availability of these authorized boosters is important for continued protection against COVID-19 disease."

The decision came after an FDA advisory committee voted last week to recommend authorizing Moderna and Johnson & Johnson's COVID-19 booster doses.

In September, the FDA authorized the first booster shots for the Pfizer-BioNTech COVID-19 vaccine, allowing a single booster dose of the Pfizer-BioNTech vaccine be administered at least 6 months after completion of the primary series to individuals 65 years of age and older, and 18 through 64 years of age with frequent institutional or occupational exposure to SARS-CoV-2.

A recent study of the "mix and match" approach funded by the U.S. National Institutes of Health found no safety concerns using different vaccines as a booster.

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Local Glob: U.S. approves new booster of COVID-19 vaccines, "mix and match" dose
U.S. approves new booster of COVID-19 vaccines, "mix and match" dose
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