UPDATE:
Among the patients with Rh(D) positive blood groups, 1 in 8 died.
Among the patients with Rh(D) negative blood groups, 1 in 45 died.
This is a significant difference, but since there were only 45 COVID-19 cases of people with Rh(D) negative blood groups with one (A-) dying, more studies are needed to confirm these results.
See the study:
In this study we found evidence for association between blood groups and COVID-19. Using data from NYP/CUIMC, we found the odds of COVID-19 positive vs negative test results were increased in blood groups A and decreased in blood groups O, consistent with previous results from Wuhan and Shenzhen. While Rh negative blood types are rare, we find evidence of association only for Rh positive blood groups. Though few AB individuals were included in our cohort, we discovered a new significant odds decrease for AB blood groups. In a meta-analysis of our data with data from Wuhan and Shenzhen reported by Zhao et al., we found a new significant COVID-19 odds increase for B blood groups compared to the general population. We demonstrated that the associations we found were not explained by confounding due to several known risk factors. Our results replicate previously-discovered associations between A and O blood groups and COVID-19, and we show novel associations between B, AB, and Rh blood groups.
See also: