They found that blood type A patients showed a higher rate of infection and they tended to develop more severe symptoms. “Sars-CoV-2-infected patients with blood group A might need to receive more surveillance and aggressive treatment,” Wang wrote. In contrast, “blood group O had a significantly lower risk for the infectious disease compared with non-O blood groups,” according to a paper they published on Medrxiv.org on March 11. Of 206 patients who had died from Covid-19 in Wuhan, 85 had type A blood, which was 63% more than the 52 with type O. Blood type difference has been observed in other infectious diseases including Norwalk virus, hepatitis B and severe acute respiratory syndrome (Sars), according to previous studies.

Source: Dhaka Tribune March 17, 2020 16:41 UTC