What is the difference between Covid vaccines? – BBC News

The three Covid-19 vaccines approved in the UK are Pfizer-BioNTech, Oxford University and Astra-Zeneca and Moderna. Pfizer, Oxford and Moderna vaccines require two doses and you should not get completely vaccinated within a week of the second shot. But there are many differences between them. BBC health correspondent Laura Foster examines how much immunity they provide, how they prevent infection and whether they are better than others. Video of Mel Lou, Laura Foster, Terry Saunders and Mattea Bubalo Subscribe HERE please .

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