There are eight common blood types but the rarest one called ‘Golden Blood’ is shared by fewer than 45 people on earth, TUNDE OGUNTOLA writes.
Golden blood is actually the nickname for Rh-null, the world’s rarest blood type. It is also very dangerous to live with this blood type, as so few people have it. The fact is fewer than 50 people worldwide have ‘golden blood’ or Rh-null.
Blood is considered Rh-null if it lacks all of the 61 possible antigens in the Rh system. Golden blood sounds like the latest in medical quackery.
However, maybe you know your blood type off the top of your head or maybe you’re like most people and you have no clue. Here’s one reason you should find out: You could have “golden blood.” And while having golden blood might sound exciting, this incredibly rare type has the potential to be deadly for people who have it. Read about 8 more really good reasons to know your blood type.
A Science Laboratory Technologist, Rehoboth Laboratory, Abimbola Pelumi said the golden blood group refers to people with a blood group that has no Rh antigens. They are designated as Rh null.
She said this is different from Rh negative which is usually the absence of only the D antigen.
‘’In Rh null, all the antigens (about 50 of them) under the Rh blood group are absent making them the most sought after universal donor blood group usually by doctors to operate on people with rare blood groups. This is a very rare occurrence but is inherited in families,’’ she said.
The science Laboratory Technologist added that such Rh null groups can be traced by family lineage and are usually present as community pools in certain places of the world.
According to thehealthy.com each of the common blood types A, B, AB, and O comes in negative and positive versions (depending on whether red blood cells have a protein called an Rh antigen on their surface). Of these eight main categories, O positive is the most common, according to the Red Cross.
While that sounds rare, AB negative has nothing on the rarest blood type of all—one that fewer than 50 people in the entire world have—which is why scientists have nicknamed it “golden blood.” The type, whose scientific name is Rhnull blood, was discovered in 1961. Since then, there have been a total of 43 reported cases. Its rarity and unique properties combine to make it potentially dangerous, should someone with this type ever need a blood transfusion. Learn some secrets your blood type can reveal about you.
The reason identifying your blood type is so important is that your red blood cells have receptors called antigens. If you receive a transfusion, your immune system will only accept the antigens that match your blood type. If you get the wrong type—and a mismatched set of antigens—your immune system will attack the blood cells, with disastrous and potentially deadly results for you. The rarest blood type, Rhnull blood, is so-called because it’s completely missing all types of the most common type of antigen, Rh. This means that if you have it, receiving a transfusion of a blood type with any Rh antigens will cause your body to reject the blood, according to the National Institutes of Health’s Genetic and Rare Diseases Information Center. Read about 8 unsolved medical mysteries that still stump doctors.
Since 99.9999994 percent of people have blood with Rh antigens, finding a blood donor for Rhnull individuals can be nearly impossible. This is why people who have golden blood are encouraged to donate their blood—in case they ever need it and because others with rare blood types could benefit from it. Since Rhnull blood contains no Rh antigens to be rejected, it can be a universal donor at least with respect to Rh antigens (though not ABO or other antibodies).
Golden blood, therefore, can be both life-threatening and lifesaving. And while your chances of having the rarest blood type are incredibly low, finding out your blood type is the only way to know for sure. Next, find out if the blood-type workout is worthwhile.
It’s generally a good idea to know your blood type even if you don’t have golden blood. Not only will having the information speed things up if you need a life-saving transfusion, but certain blood types also seem connected with certain health conditions.
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