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Blood types and coronavirus: How many blood groups are there and what is the risk? - AS English
Blood types may play a big role in which Covid-19 patients get the sickest and it may help determine your odds of contracting the virus.
A study published by the New England Journal of Medicine has found that people with type A blood were associated with a 45% higher risk of acquiring Covid-19 compared to people with other blood types. While people with blood type O, the most common blood type, are 65% as likely to get coronavirus as people with other blood types. The study was published after performing genetic analysis on more than 1,900 severely ill coronavirus patients in Spain, Italy, Denmark, Germany and other countries and comparing them to over 2,000 patients who were not sick. But Wednesdays report in the New England Journal of Medicine doesnt prove a blood type connection. Most of us discounted it because it was a very crude study. Now I believe it, it could be very important, said Dr. Parameswar Hari, a blood specialist at the Medical College of Wisconsin, about the report from China linking blood types with Covid-19. Most genetic researchers have been hunting for clues as to why some people infected with the coronavirus get very ill and others not so much. They came to the conclusion that being older or mal seems to increase the risk, and scientists have been looking at genes as another possible host-factor that influences the coronavirus severity. The main four blood types are: A, B, AB and O. According to this study people with type O are better able to recognize certain proteins as foreign and that may extend to proteins on virus surfaces. Blood type also has been tied to susceptibility to some other infectious diseases.