Scientists publish first real-world data from Africa looking at immune response to AZ/Oxford COVID-19 vaccine
Coronavirus
Scientists have released the first real-world data from Africa on the effectiveness of two doses of AstraZeneca/ChaAd0x-1 COVID-19 vaccination, showing that while protective against SARS-CoV-2, immunity against the Delta and Omicron variants was lower, even in the context of prior infection or infection after vaccination. In a pre-print – which has yet to be peer-reviewed * – scientists from Nigeria and the UK analysed data from 140 healthcare workers at the Nigerian Institute of Medical
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