Mixing Pfizer, AstraZ COVID-19 shots with Moderna gives better immune response -UK study

A major British study into mixing COVID-19 vaccines has found that people had a better immune response when they received a first dose of AstraZeneca or Pfizer-BioNTech shots followed by Moderna nine weeks later, according to the results on Monday.
Read more: https://www.reuters.com/business/healthcare-pharmaceuticals/mixing-pfizer-astraz-covid-19-shots-with-moderna-gives-better-immune-response-uk-2021-12-06/?source=Snapzu