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Gut Bacteria Could Provide Key to Making ‘Universal’ Blood Type

By August 24, 2018No Comments

Canadian researchers say they may have identified substances from the human gut that could turn Type A and B blood into Type O blood — a discovery that could make blood donation simpler, especially in times of emergency.

People with Type O negative blood are considered universal donors, as they can donate blood to anyone. That’s why Type O negative blood is always in high demand during emergencies, when there is often little time to test a patient’s blood type to make sure it matches a donor.

Those with the other types of blood – Type A and Type B – have antigens on their red blood cells that prevent their blood from being donated to those who don’t match.