The MOSAIC study is an ongoing clinical trial run by the Canadian Center for Vaccinology, Canadian Immunization Research Network, COVID Immunity Task Force, Vaccine Surveillance Reference Group (VSRG), and Dalhousie University studying the safety and efficacy of mixing and matching the Pfizer-BioNTech, Moderna and AstraZeneca COVID-19 vaccine products.1) 2)

Canadian Center for Vaccinology. (2021, July 8). MOSAIC: Mix and Match COVID-19 Vaccines. Retrieved November 25, 2021, from
CIRN, Canadian Immunization Research Network. (2021, May 26). Partners and Sponsors. Retrieved November 25, 2021, from