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Blood Groups Act as Protection Against Infection, University of Bath Study


12/19/2012 7:46:40 AM

Humans may have acquired enzymes that make blood groups from bacteria to hinder the spread of viruses in the population, suggests a study led by scientists at the University of Bath. Red blood cells are covered with carbohydrate structures called glyco-antigens, some of them vary between individuals and are classified into blood groups A, B and O.

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