CDC Advises to Mix J&J COVID Vaccine with Pfizer or Moderna Booster

In case you missed it, the CDC recently recommended that people who have received two shots of a COVID-19 vaccine produced by Johnson & Johnson follow up with a booster of one of the FDA-approved mRNA vaccines from Pfizer-BioNTech and Moderna, which could produce a stronger immune response and lessen the risk of rare but severe side effects. In a recent study, researchers found that two Johnson & Johnson doses was 54% effective at preventing COVID-associated emergency department or urgent care visits, compared to 79% after one Johnson & Johnson dose and one dose of either of the mRNA vaccines–comparable to the effectiveness offered by three shots of an mRNA vaccine, the CDC said. Read more here.