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Type O Blood Protects Malaria Victims

Drugs based on finding could spark cure, save 2 million annually

By Nick McMaster,  Newser Staff

Posted Oct 30, 2007 8:52 PM CDT

(Newser) – Scientists may be closer to a malaria cure after learning that type O blood naturally shields victims from harsh forms of the disease. A study published today showed that African malaria victims with type O blood are two-thirds less likely to suffer fatal anemia or unrousable coma, the BBC reports. One scientist admitted that the finding surprised him.

He told the Telegraph, "I found it amazing that no one had looked in detail at the effects of blood group on life-threatening malaria in Africa, where most malaria deaths occur." The researchers found that type O blood cells won't flock to “rosettes”—parasite-encased blood cells—thereby stopping them from blocking blood vessels and oxygen. A cure could prevent up to 2 million deaths by malaria annually worldwide.

A young boy diagnosed with Malaria awaits treatment at a clinic run by World Vision in the South Darfur refugee camp of Otash in 2007. (AP Photo/Alfred de Montesquiou)
A young boy diagnosed with Malaria awaits treatment at a clinic run by World Vision in the South Darfur refugee camp of Otash in 2007. (AP Photo/Alfred de Montesquiou)   (Associated Press)
An insect prepares for its next strike in this undated photo. Scientists say they may be only years away from a malaria cure, after learning that type O blood naturally shields victims from harsh forms of the disease.
An insect prepares for its next strike in this undated photo. Scientists say they may be only years away from a malaria cure, after learning that type O blood naturally shields victims from harsh forms...   (Getty Images)
Darfur refugee Khadija Moussa receives treatment for her malaria in Otash camp in South Darfur in 2007. (AP Photo/Alfred de Montesquiou)
Darfur refugee Khadija Moussa receives treatment for her malaria in Otash camp in South Darfur in 2007. (AP Photo/Alfred de Montesquiou)   (Associated Press)
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The original study
Proceedings of the National Academy of Sciences of the United States of America

Edinburgh scientists find malaria breakthrough
Scotsman (UK)

 
Africa malaria blood Edinburgh

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