Scientific data and knowledge on this topic is evolving rapidly and each individual should make their own decision based upon their risk tolerance and risk perception. It’s important that updates on this topic are followed and decisions amended accordingly. Vaccine Efficacy, Effectiveness and comparisons First dose effectiveness for preventing symptomatic disease of Pfizer and Oxford in UK age 70+ In this UK study of 7.5 million people age 70 and above protection against symptomatic COVID, 4 weeks after the first dose, ranged between 57 and 61% for one dose of Pfizer and between 60 and 73% for one dose of the Oxford-AstraZeneca vaccine. First dose effectiveness for preventing hospital admission of Pfizer and Oxford in UK age 80+ In patients age over 80, single dose of either vaccine was more than 80% effective at preventing hospitalisation, around 3 to 4 weeks after the jab. https://www.medrxiv.org/content/10.1101/2021.03.01.21252652v1 https://www.gov.uk/governme...