Susceptibility and severity of Covid-19 in different blood groups

The relation of ABO and Rh blood groups with susceptibility and severity of COVID-19 among 120 patients is it of interest. Blood group A showed the highest infection rate of 37.5%, while the lowest was that of blood group O, at 20%. Susceptibility was a little higher in Rh-positive patients and the highest prevalence of severe disease was found among patients with blood group AB, at 30%. Results show that groups A and AB are associated with increased susceptibility and severity, which may help identify at-risk populations to target public health interventions. Further studies can help refine such associations and inform preventive strategies.