Of the 61 known blood group antigens, the negative/positive distinction refers solely to antigen D. During blood transfusion, ...

For example: There are also Rhesus (Rh) antigens, which determine if blood is "positive" or "negative." If you have Rh proteins on the surface of your red blood cells, you are Rh positive.

It's a bit simplistic, but you can think of the Rh factor as a protein that is either present (positive) or absent (negative) on red blood cells. Exact percentages vary with race, but most people ...

Another important antigen is the Rh factor, which gives the "positive" and "negative" signs to blood types. So, nowadays, ...

If Neanderthal women mated with Homo sapiens or Denisovan men, there was a high risk of newborns having neonatal hemolytic ...

PHUKET: The Phuket branch of the Red Cross (PRBC) and the Blood Bank at Vachira Phuket Hospital are encouraging residents to ...