Vaxx Populi: If you got a first dose of AstraZeneca, you can choose to get an mRNA vaccine for your second dose. Pfizer and Moderna will also be interchangeable as second doses.
Canada’s magazine
Vaxx Populi: If you got a first dose of AstraZeneca, you can choose to get an mRNA vaccine for your second dose. Pfizer and Moderna will also be interchangeable as second doses.