Study ties blood type to COVID-19 risk; O may help, A hurt
https://apnews.com/7200199044b318f992402b411c3ea4d0
A genetic analysis of COVID-19 patients suggests that blood type might influence whether someone develops severe disease.
Scientists who compared the genes of thousands of patients in Europe found that those who had Type A blood were more likely to have severe disease while those with Type O were less likely.
