J&J Covid Vaccine Recipients Are Better Off Getting Pfizer Or Moderna Booster, NIH Study Suggests

The NIH study on “mixing and matching” Covid vaccines included more than 450 adults who have received one of the three regimens currently available in the United States: J&J’s, Moderna’s or Pfizer’s. Volunteers were divided into groups and received an extra shot of their original vaccine or a booster from a different company. Antibody levels … Read more