Antibodies recognize any foreign antigens and tell your immune system to destroy them. Here’s why: Your ABO blood group is identified by antibodies, part of the body’s natural defense system, and antigens, a combination of sugars and proteins that coat the surface of red blood cells. What he didn’t know is that humans should only get blood from certain other humans. (Ashlee Rezin Garcia/Chicago Sun-Times via AP) Ashlee Rezin Garcia/APĬovid-19 isn't just a respiratory disease. Nurse practitioner Capri Reese talks to a patient and holds her hand while a doctor administers an IV at Roseland Community Hospital in Chicago, Tuesday, April 28, 2020. James Blundell, who worked in London in the early 1800s, gave blood transfusions to 10 of his patients - only half survived. Prior to the discovery of blood groups, a transfusion, a now common lifesaving procedure, was a high-stakes process fraught with risk. Like other genetic traits, your blood type is inherited from your parents. Karl Landsteiner, who later won a Nobel Prize for his work. “I think it’s fascinating, the evolutionary history, even though I don’t think we have the answer of why we have different blood types,” said Laure Segurel, a human evolutionary geneticist and a researcher at the National Museum of Natural History in France.īlood types were discovered in 1901 by the Austrian immunologist and pathologist Dr. Unlocking what role blood types play would potentially help scientists better understand the risk of disease for people in different blood groups. Why we have blood types and what purpose they serve is still largely unknown, and very little is known about their links to viruses and disease. (Photo by Buda Mendes/Getty Images) Buda Mendes/Getty ImagesĮuropean study links genes, blood type with risk of severe coronavirus infection RIO DE JANEIRO, BRAZIL - JUNE 08: Medical staff members wearing personal protective equipment treat a patient at Parque dos Atletas (Athlete's Village) field hospital amidst the coronavirus (COVID-19) pandemic in Rio de Janeiro, Brazil.
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