@article{Sheikh_A-2022_83821, title = {Severity of omicron variant of concern and effectiveness of vaccine boosters against symptomatic disease in Scotland (EAVE II):a national cohort study with nested test-negative design}, author = {Sheikh, A. and Kerr, S. and Woolhouse, M. and McMenamin, J. and Robertson, C. and EAVE II Collaboration}, month = {apr}, year = {2022}, abstract = {BACKGROUND: Since its emergence in November, 2021, in southern Africa, the SARS-CoV-2 omicron variant of concern (VOC) has rapidly spread across the world. We aimed to investigate the severity of omicron and the extent to which booster vaccines are effective in preventing symptomatic infection.}, journal = {The Lancet Infectious Diseases}, publisher = {Elsevier}, url = {https://doi.org/10.1016/S1473-3099(22)00141-4}, }