In a routine blood test that turned extraordinary, French scientists have identified the world's newest and rarest blood ...

You need to inherit two Rh-negative alleles (one from each parent) to be Rh-negative. The genes responsible for determining your Rh blood type are located on chromosome 1 . Genetics and Kell blood ...

An unidentified woman from Guadeloupe has the rarest blood type on Earth, to the extent that she’s only compatible with herself. The 68-year-old is thus far the only known member of the blood group ...

If you’re Rh-negative and your baby is Rh-positive, this means that your baby inherited the Rh gene from their Rh-positive dad. How the Rh Factor Test Is Done.

A routine medical test turned extraordinary for a woman from the Caribbean when doctors found something completely new in her blood. Nearly 15 years ago, while preparing for surgery in Paris, doctors ...

Scientists have discovered a new blood type in a woman from Guadeloupe, now recognized as one of the rarest in the world.

The researchers named the group “Gwada negative,” after the patient’s homeland, and confirmed that the woman inherited the blood type from her parents, who each contained the mutated gene.

One out of every eight marriages in the U.S. is a potentially dangerous mismatch, biochemically speaking. In these 200,000 or more marriages a year, the wife lacks the Rh factor present in most ...

The Rh type is important in Pregnancy because, Rh incompatibility that happens when the mother's blood group is Rh negative and her baby’s blood group in the womb is Rh positive.

More information: Louise A Tilley et al, Deletions in the MAL gene result in loss of Mal protein, defining the rare inherited AnWj-negative blood group phenotype, Blood (2024). DOI: 10.1182/blood ...