Mixing doses of AstraZeneca, Pfizer-BioNTech vaccines gives good protection against COVID-19: Oxford study

Alternating doses of the AstraZeneca and Pfizer-BioNTech vaccines generate robust immune responses against the coronavirus, a study conducted by Oxford University has suggested. According to the study, 'mixed' schedules of these vaccines induced high concentrations of antibodies against the SARS-CoV2 spike IgG protein when doses were administered four weeks apart.

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