TY - JOUR AU - Bernal, Jamie Lopez AU - Andrews, Nick AU - Gower, Charlotte AU - Robertson, Chris AU - Stowe, Julia AU - Tessier, Elise AU - Simmons, Ruth AU - Cottrell, Simon AU - Roberts, Richard AU - O'Doherty, Mark AU - Brown, Kevin E. AU - Claire Cameron AU - Stockton, Diane L. AU - Jim McMenamin AU - Ramsay, Mary E. PY - 2021 DA - May TI - Effectiveness of the Pfizer-BioNTech and Oxford-AstraZeneca vaccines on covid-19 related symptoms, hospital admissions, and mortality in older adults in England: test negative case-control study JO - BMJ VL - 373 IS - 8292 DO - https://doi:10.1136/bmj.n1088 AB - ObjectiveTo estimate the real world effectiveness of the Pfizer-BioNTech BNT162b2 and Oxford-AstraZeneca ChAdOx1-S vaccines against confirmed covid-19 symptoms (including the UK variant of concern B.1.1.7), admissions to hospital, and deaths. PB - British Medical Association UR - https://pureportal.strath.ac.uk/en/publications/effectiveness-of-the-pfizer-biontech-and-oxford-astrazeneca-vacci KW - Coronavirus (COVID-19) KW - Immunisation and screening ER