Furthermore, the vast majority of these latter individuals happen to reside in northern Europe. The Basques also speak a non-Indo-European language and have genetic markers that pre. The Basques have the highest incidence of the gene out of any population in the world. Oddly enough, RH negative blood can be utilized by any human being in need of a transfusion, but people with RH negative naturally coursing through their veins cannot make use of any other type of blood at all. One population which contains an unusually high frequency of the gene for the Rh-Negative blood type are the Basques from northeastern Spain. Only 15% of human beings have this strange type of blood, and what’s more, these individuals have been described as having strange personal characteristics as well. But is it likely that RH negative blood has unearthly origins? Is it possible that human beings possessing the latter blood type are actually from Mars, Venus, or elsewhere in the universe? Well, since the known laws of physics breakdown past the horizons of black holes, truly anything is possible. Rh-null blood was first discovered in 1961 in an Australian Aboriginal woman.All human blood types contain and are categorized by amounts of protein-except type RH negative, that is. Unfortunately, there is such a low number of people with Rh-null blood that it is used sparingly and they are encouraged to donate regularly so that the blood will be there for themselves should they need a blood transfusion. The scarcity of Rh-null blood coupled with its unique properties make it very valuable to scientific research, hence its “Golden Blood” reputation. However, Rh-null can only accept blood from others with Rh-null. Rh-null occurs when a person’s blood lacks all of the 61 possible antigens.īecause Rh-null lacks all of the possible antigens it can be donated to others who have highly unusual blood types outside of the main eight types. While there are only eight main/common blood types, there are an additional 61 possible antigens in the Rh system, which means that the eight main blood types can be subdivided into millions of different blood types.

Rh-null aka “Golden Blood” is the rarest blood type in the world with fewer than 50 (43 to be exact) known cases ever reported. Photo source: Wikimedia Commons via Sémhur Plasma Compatibility (Can Donate To): Unspecified CMV is a flu-like virus that most adults have been exposed to at some time in their life and while CMV antibodies, which remain in the blood forever like all viruses, are safe for adults, they can be fatal to babies.ĭistribution Among World Population: Fewer than 50 individualsĬan Donate T: Rh-null (can also be given to other unusual blood types) Did You Know?Īlthough O- blood is already very special, O- donors who are CMV (Cytomegalovirus) negative are extra special because their blood is safe to give to babies. According to the American Red Cross, O- blood is the always the first to run out during a blood shortage due to its universality. Unfortunately, O- blood is pretty uncommon and because of how important the blood is, donors are in very high demand around the world. O- blood is used often in transfusions when the recipient’s blood type is unknown, like during trauma or emergency situations. Did You Know?Īlthough both O+ and O- blood are used most often when an individual’s blood type is unknown, during traumas hospitals prefer to transfuse O+ blood over O- because the risk of reaction is much lower in ongoing blood loss situations and because hospitals have more O+ blood than O-.ĭistribution Among World Population: 2.55%Īs the “universal donor,” O- blood is perhaps the most valuable blood in the world as it can be given to nearly any blood type (except when the person has some rare antigen outside of the main ones). However, O blood types can be given plasma from anyone. When it comes to plasma, O blood, both positive and negative, is not so universal and they can only give plasma to other O types. While O+ blood can be given to anyone with Rh positive blood types, individuals can only receive blood from O+ and O- donors. Additionally, Rh positive blood types are much more common than Rh negative blood types, which is another reason why O+ blood is always needed and important. O+ blood is the most common blood type in the world and while it is not quite as universal as O- blood (O+ can be given to all Rh positive types but not the Rh negative types), it is still the most used blood, according to the American Red Cross. Distribution Among World Population: 38.67%

Rh a negative blood type