Studies show that mixing some COVID injections gives a better immune response

A major British study into mixing COVID-19 vaccines has found that people had a better immune response when they received the first dose of AstraZeneca or Pfizer-BioNTech shots followed by Moderna nine weeks later, according to the results on Monday.

 

If the AstraZeneca-Oxford vaccine is followed by a Moderna or Novavax shot, higher antibodies and T-cell responses were induced versus two doses of AstraZeneca-Oxford, according to researchers at the University of Oxford.