by French scientists have discovered a new blood group in a woman from the Caribbean island of Guadeloupe, announced the French Blood Supply Agency on Friday.
The woman is the only well -known wearer of a new blood type, called “Gwada negative”, said the French blood company (EFS). The discovery was made 15 years after researchers received a blood sample from a patient who underwent routine tests prior to surgery.
“The EFS has just discovered the 48th blood group system in the world!” The agency said in a statement about Social Network LinkedIn, adding that the discovery was officially recognized at the beginning of June by the International Society of Blood Transfusion.
The scientific association had so far recognized 47 blood group systems.
Thierry Peyrard, a medical biologist at the EFS involved in the Discovery, told AFP that a “very unusual” antibody in 2011 was found for the first time with the patient. However, in that time the resources were not further investigated, he added.
Scientists were finally able to unravel the mystery in 2019 thanks to “DNA sequencing with high transit”, which emphasized a genetic mutation, Peyrard said.
The patient, who was 54 at the time and lived in Paris, underwent routine tests before the operation when the unknown antibody was detected, Peyrard said.
This woman “is undoubtedly the only well -known business in the world,” he said, adding to it: “She is the only person in the world who is compatible with herself.”
The medical biologist said that the woman inherited the blood type from her father and mother, who each had the mutated gene.
The name “Gwada negative”, which refers to the patient’s origin and “sounds good in all languages”, has been popular with the experts, Peyrard said.
The ABO blood group system was first discovered in the early 1900s. Thanks to DNA sequencing, the discovery of new blood groups has been accelerated in recent years.
Peyrard and colleagues now hope to find other people with the same blood type.
“Discovering new blood groups means that patients with rare blood species offer a better level of care,” said the EFS.
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