Blood Types

Under the AB system, there are four main blood types A, B, AB and O And each of these four types can be “rhesus positive” or “rhesus negative”

Is one of the rarest blood types — only % of the US population has type B+ Can give blood products to types B+ and AB+, and receive all B and O types Is an

blood link Rhesus negative must be confirmed with D-antigen typing, weak D group were considered as Rhesus positive blood group All reagents were used according to

blood type blood group genotyping that avoids potential errors caused by null, subgroup, and hybrid alleles Transfusion 47: 2110–2125 Høstrup H A and B blood group