Source: Nathaniel Weixel, THE HILL, 10/13/21


Receiving a booster dose of a different vaccine than what was initially administered is safe and effective, though people who received Johnson & Johnson's vaccine may get more benefit from a booster of an mRNA vaccine such as Pfizer's or Moderna's, according to data released Wednesday. A highly anticipated preprint study on "mixing and matching" vaccines from the National Institutes of Health found that boosting with any of the three vaccines currently licensed or authorized for emergency use in the U.S. will generate an immune response.

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