(CNN Spanish) -
The US Food and Drug Administration (FDA) authorized booster doses of the covid-19 vaccines manufactured by Moderna and Johnson & Johnson on Wednesday and also said that any of the three licensed vaccines could be used as a booster in a "mix and match" approach.
The FDA granted an emergency use authorization for the Moderna vaccine booster dose for people who were fully vaccinated at least six months prior and who are also at least 65 years old, or who are at least 18 years old and at high risk of severe covid-19 or with frequent institutional or occupational exposure to SARS-CoV-2.
ANALYSIS |
Combining covid-19 vaccines has two benefits: stronger immune responses and less confusion
"The use of a single booster dose of the Janssen (Johnson and Johnson) vaccine can be given at least 2 months after completing the primary single-dose regimen to individuals 18 years of age or older," added the FDA in a declaration.
"The use of each of the available covid-19 vaccines as a heterologous booster dose (or 'mix and match') in eligible individuals after completing primary vaccination with a different available vaccine," the FDA said.
"To clarify that a single booster dose of the Pfizer-BioNTech vaccine can be given at least 6 months after completing the primary series to persons 18 to 64 years of age with frequent institutional or occupational exposure to SARS-CoV-2" added.
With information from John Bonifield and Maggie Fox
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