The association between blood groups and COVID-19 infection: a study from the UK Biobank.

Blood groups might influence susceptibility to COVID-19 [1-7]. We investigated associations between blood groups and COVID-19 infection in UK Biobank participants, a prospective population-based study that, between 2006 and 2010, enrolled 502,620 people aged 38-73 years in the United Kingdom. All participants gave written informed consent for their data to be used for research purposes, which was also approved by an ethics committee.