In December 2019, a novel coronavirus COVID-19 emerged from Wuhan, China, and was soon declared as pandemic by the World Health Organization (WHO) on the 11 March 2020. The UK soon followed suit and implemented a national lockdown on the 23 March 2020. As of 9 December 2020, according to WHO, this highly infectious virus has infected more than 67 million people and led to over 1.5 million deaths across the world. There is a growing body of evidence on the epidemiology of the condition, risk factors for poor outcomes and effects of interventions.
© The Author(s) 2021; all rights reserved. Published by Oxford University Press on behalf of the International Epidemiological Association This article is published and distributed under the terms of the Oxford University Press, Standard Journals Publication Model (https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model)
Mulholland, R., Vasileiou, E., Simpson, C., Robertson, C., Ritchie, L., Agrawal, U., Woolhouse, M., Murray, J., Stagg, H., Docherty, A., McCowan, C., Wood, R., Stock, S. & Sheikh, A. 2021, 'Cohort profile: Early pandemic evaluation and enhanced surveillance of COVID-19 (EAVE II) database', International Journal of Epidemiology, article no: dyab028. https://doi.org/10.1093/ije/dyab028