LONDON — Amid the global shortage of the Covid-19 vaccines, a study conducted by Oxford University has found out that alternating doses of the AstraZeneca and Pfizer-BioNTech vaccines generate robust immune responses against the coronavirus. As per 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. This study — published on the […]

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