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Unit 5 Wonders of Our Body
单元话题漫谈
Blood Mystery Solved:Two New Blood Types Identified
ScienceDaily (Feb.23,2012)-You
probably know your blood type:
A,B,AB or O.You may
even know if you’re positive or negative.But how about the Langereis blood type?Or the Junior blood type?Positive or negative?Most people have never even heard of these.
Yet this knowledge could be “a matter of life and death,” says University of Vermont biologist Bryan Ballif.
While blood transfusion problems due to Langereis and Junior blood types are rare worldwide,several ethnic populations are at risk,Ballif notes.“More than 50,000 Japanese are thought to be Junior negative and may encounter blood transfusion problems or mother-fetus incompatibility,” he writes.
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