Markers related to antigenic diversity of human blood group systems.

This report includes markers related to antigenic diversity of human blood group systems.

A Blood Group system is defined as one or more blood group antigens encoded by a single gene or by two or more closely linked genes. The majority of the population has one of the ABO blood groups and is Rh positive or negative. But there are more than 30 identified blood groups and more than 600 known antigens besides A, B and Rh.

The ability to identify and match blood group types is important for blood transfusions, but also in pregnancy and before certain types of transplantion.

Some blood types are associated with inheritance of other diseases for example, the Kell antigen is sometimes associated with McLeod syndrome.

And also certain blood types may affect susceptibility to infections, an example being the resistance to specific malaria species seen in individuals lacking the Duffy antigen.

The section also includes a Blood Type Calculator.

Please note that Genomapp is not for diagnostic use, it does not provide medical advice and is not a substitute for it. Consult with your health specialist if you have any question.