ABO blood group association and COVID-19. COVID-19 susceptibility and severity: a review

Abstract Introduction The SARS-CoV-2 pandemic has been affecting the health and economic, as well as social, life of the entire globe since the end of 2019. The virus causes COVID-19, with a wide range of symptoms among the infected individuals, from asymptomatic infection to mortality. This, along with a high infection rate, prompted efforts to investigate the potential mechanisms of the different clinical manifestations caused by SARS-CoV-2 among the infected populations. Hypothesis One of the possible mechanisms that has been reported is the ABO blood system polymorphism. Indeed, one of t...

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