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. Wednesday´s report in the New England Journal of Medicine does not prove a blood type connection, but it does confirm a previous report from China of such a link. Researchers tied variations in six genes to the likelihood of severe disease, including some that could have a role in how vulnerable people are to the virus. Researchers still don't know for sure what about this gene variant that leads to Type A blood would make someone more susceptible to coronavirus.

Source: Daily Mail June 18, 2020 18:55 UTC