What are the different COVID-19 vaccines and how do they work?

Currently in the UK there are three vaccines available; Pfizer-BioNTech, Oxford-AstraZeneca and Moderna. The first two are being rolled out in the UK and the latter is expected to be available in the spring. These vaccines utilise alternative methods in order to provide immunity against the coronavirus.  Pfizer-BioNTech and Moderna are both mRNA based vaccinesContinue reading “What are the different COVID-19 vaccines and how do they work?”