Can you mix Pfizer and AstraZeneca doses?

Let’s hypothetically say you wanted to get one dose of the Pfizer COVID-19 vaccine, and the second dose as AstraZeneca, would you be able to do that in Australia? The answer is no, we’ll explain why below. Current advice and justification “You need to match, don't mix", Australian Chief Medical Officer, Paul Kelly, said to Australians in July this year on mixing COVID-19 vaccine brands. Australian health authorities are showing no signs of changing that advice. It’s also important to clarify, when referring to ‘mixing’ the vaccine, we don’t mean stirring two brands together in one shot, but rather the first dose being one brand, and the second being the other.

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