Covishield Efficacy Subject: Science and Technology Context: Covishield, the made-in-India variant of Oxford-AstraZeneca’s AZD-1222 formulation, is the predominant vaccine being used in India’s mass immunisation programme against SARS-CoV-2, the Covid-19 virus. Concept: Interim results of VIN-WIN cohort study’), published in a special issue of the peer-reviewed Medical Journal Armed Forces India. The VIN-WIN study mentions […]