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Guadeloupe, France – French scientists have made a groundbreaking discovery, identifying a new blood type in a woman hailing from the Caribbean island of Guadeloupe. The French Blood Establishment (EFS) announced this remarkable finding, marking only the 48th recognized blood group system worldwide.
The individual, currently the sole known carrier of this unique blood type, has been designated “Gwada negative.” This discovery stems from a blood sample collected 15 years ago during routine pre-surgery testing.
“The EFS has just discovered the 48th blood group system in the world!” the agency declared in a LinkedIn post, highlighting the official recognition by the International Society of Blood Transfusion earlier this month.
Thierry Peyrard, a medical biologist at the EFS, explained that an “unusual” antibody was initially detected in the patient’s sample back in 2011. However, limited resources prevented further investigation at the time.
Breakthrough came in 2019 when advanced “high-throughput DNA sequencing” revealed a novel genetic mutation responsible for the new blood type. The patient, then 54 and residing in Paris, was undergoing standard pre-operative screening when the anomaly was identified.
According to Peyrard, the woman inherited the genetic trait from both parents. “She is the only person in the world who is compatible with herself,” he emphasized, underscoring the rarity of the discovery.
The name “Gwada negative” was chosen to reflect the patient’s Guadeloupean heritage and its universal appeal, according to Peyrard.
While the ABO blood group system was established in the early 1900s, advancements in DNA sequencing have accelerated the identification of new blood groups in recent years.
Peyrard and his team are now actively seeking other individuals with the same blood type. The EFS emphasized the importance of such discoveries, stating, “Discovering new blood groups means offering patients with rare blood types a better level of care.”
Keywords: New blood type, Guadeloupe, Gwada negative, French Blood Establishment, EFS, blood group system, Thierry Peyrard, DNA sequencing, rare blood, blood transfusion, medical research