Scientists publish first real-world data from Africa looking at immune response to AZ/Oxford COVID-19 vaccine
11 May 2022Scientists 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.
