Genomewide Association Study of Severe Covid-19 with Respiratory Failure.

TLDR: A 3p21.31 gene cluster is identified as a genetic susceptibility locus in patients with Covid-19 with respiratory failure and a potential involvement of the ABO blood-group system is confirmed.

Abstract: Background There is considerable variation in disease behavior among patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes coronavirus disease 2019 (Covid-19) Genomewide association analysis may allow for the identification of potential genetic factors involved in the development of Covid-19 Methods We conducted a genomewide association study involving 1980 patients with Covid-19 and severe disease (defined as respiratory failure) at seven hospitals in the Italian and Spanish epicenters of the SARS-CoV-2 pandemic in Europe After quality control and the exclusion of population outliers, 835 patients and 1255 control participants from Italy and 775 patients and 950 control participants from Spain were included in the final analysis In total, we analyzed 8,582,968 single-nucleotide polymorphisms and conducted a meta-analysis of the two case-control panels Results We detected cross-replicating associations with rs11385942 at locus 3p2131 and with rs657152 at locus 9q342, which were significant at the genomewide level (P Conclusions We identified a 3p2131 gene cluster as a genetic susceptibility locus in patients with Covid-19 with respiratory failure and confirmed a potential involvement of the ABO blood-group system (Funded by Stein Erik Hagen and others)