>Dough
Many studies report that blood type A might predispose one to increased susceptibility of infection with SARS-CoV-2, and type O and Rh-negative blood groups might be protective. Although this appears to be an emerging trend, the impact of blood type on clinical outcomes remains unclear. At this point in time, there does not appear to be any relationship between blood type and COVID-19โrelated severity of illness or mortality. Current literature does not support blood type as part of a predictive model of viral illness or mortality, and ABO/Rh screening should not be used as a triage mechanism.