Table of Contents
What is the rarest group of blood?
AB negative
AB negative is the rarest of the eight main blood types – just 1\% of our donors have it. Despite being rare, demand for AB negative blood is low and we don’t struggle to find donors with AB negative blood.
What does A2 blood type mean?
When reporting to the OPTN Contractor, A2 is used as shorthand for any blood type A subtype. other than A1 (i.e. non-A1, negative for A1). A2B is used as shorthand for any blood type AB subtype other than A1B (i.e. non-A1B, negative for A1B).
Is a positive and A1 positive are same?
No, they are not the same. As you are aware, blood group – A people will have the presence of Antigen -A. That means, the surface of red blood cells of such person will have A antigen.
What is A2 positive blood type?
Generally an A2 is not identified until they have developed an antibody to A1 cells. This occurs either from an exposure by transfusion or a pregnancy. Once an A2 has developed an anti-A1, the A2 can only be transfused with A2 blood or with O blood that is compatible.
Is A1 positive rare?
A1 and A2 are rare subgroups. However, they may lead to transfusion related reactions which could be lethal. By knowing the prevalence of A1 and A2 subgroups in a blood bank at tertiary care hospital, the dangerous transfusion reactions occurring due to these minor incompatibilities can be avoided.
Is a2b a rare blood type?
Yes. Blood type A2B is very rare indeed. Only 0.6–1.4\% of the entire world’s population have this blood type. If you or someone you know has type A2B, I suggest they join a blood registry to be a recipient or donor. Someone could save their life and they could save another’s. What is A2B+ve blood group?
What is the prevalence of A2B blood group in India?
The African and Caucasian populations also show a lower frequency of the blood group A2B. Incidence of A2 population in India is approximately 8.0\% and for A2B is 8.6\% [5]. The prevalence of anti-A1 antibodies among A2 and A2B samples was 1.8\% and 3.75\%, respectively [6].
What is A2 a blood group?
A2 is an uncommon subgroup of A blood group. The problem is that A2 people can develop antibodies against the prevailing A1 antigen. These individuals were discovered because they apparently broke Landsteiner’s Law (an A individual with anti A antibodies).
What is the rarest blood type in Asia?
AB is rarer at 8\% [4]. The occurrence of A2 subgroup is rare in the Asian population and hence, A2 and A2B blood groups are the rare blood types amongst Asians. The African and Caucasian populations also show a lower frequency of the blood group A2B.