Vaccine Mix-and-Match Approach Bolsters Antibodies, Study Finds

Oct. 13, 2021, 5:24 PM

Mixing Covid vaccines produces as much or more antibodies as using the same shot as a booster, according to preliminary results of a widely awaited U.S. government-sponsored trial.

The trial is the first major U.S. study to compare the effects of using different vaccines as boosters from the initial shot or shots. The complicated, 9-arm trial involved over 450 people and measured the effects from giving a booster shot of the Moderna Inc., Pfizer Inc.-BioNTech SE or Johnson & Johnson vaccines to those who had originally gotten a different vaccine.

Overall, the results found that mixing-and-matching resulted in ...

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