Vaccine Brand Matters?

Given that vaccine guidance in several countries states that each dose of the multidose COVID-19 vaccine must be produced by the same manufacturer as previous doses, the implication is that in the event of a need for periodic COVID-19 vaccine variants, those who initially received the Oxford-AstraZeneca vaccine would likely be required to receive that same “brand” of vaccine seasonally. In other words, those who initially received the Oxford-AstraZeneca vaccine would likely be required, not just to receive a second dose of the same “brand,” but continue receiving that same “brand” of vaccine every year. Notably, no interaction studies have yet been conducted on the interactions between the COVID-19 vaccines and other medications as well as other vaccines.

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