Sara Blood Type: The World’s Rarest Blood Group Found in Only Two Families!
So now, wild story: The super rare blood type SARA (which only exists in two families in the whole world!) We mostly only hear about common blood types, such as A, B, AB or O. However, it seems that blood types are more interesting than that.
So, here’s what happened: This unique blood type was stumbled upon by scientists back in the 1990s totally by accident. It was to test a young girl named Sarah’s blood and every once in a while they’d see reactions they didn’t know what it was. Digging a little deeper, they discovered that Sarah’s red blood cells showed a new antigen, a totally unique protein that resulted from a change in her DNA.
They tested Sarah’s family and found that this new antigen was in their blood too. Since it was such a rare find, they decided to name this blood group after her: the “Sara” blood group. Pretty cool, right?
But here’s where it gets even crazier. About 10-15 years later, a mother in Canada lost a lot of blood during childbirth. Doctors noticed her baby’s blood didn’t match hers and was reacting strangely. After testing the mom’s plasma against a ton of rare blood types, they realized it only reacted with Sara blood. Turns out, the baby had inherited the Sara blood, while the mom didn’t have it. She had actually developed anti-SARA antibodies, which meant her immune system was trying to attack her baby’s Sara-positive cells. Wild, huh?
Because of all this, the “Sara” blood group is now officially recognized as one of the rarest blood types in the world. And get this: so far, only two families across different continents are known to have it. It’s like these families are connected by this crazy blood mystery!
Sources: Life Blood, Science
Also Read: Golden Blood: The Rarest Blood Type You’ve Probably Never Heard Of
[sc_fs_multi_faq headline-0=”h2″ question-0=”What makes the Sara blood type so rare? ” answer-0=”The Sara blood type is super rare because it has a unique antigen that’s only found in two known families. This unique marker was caused by a tiny change in DNA. ” image-0=”” headline-1=”h2″ question-1=”How was the Sara blood type discovered? ” answer-1=”Scientists accidentally found it in the 1990s while testing a young girl named Sarah. Her blood reacted in ways they hadn’t seen before, leading to the discovery of a new antigen. ” image-1=”” headline-2=”h2″ question-2=”Why is it dangerous for Sara-negative people to get Sara-positive blood? ” answer-2=”If someone without this antigen (Sara-negative) receives blood from a Sara-positive person, their immune system could see it as a threat and react negatively, which could be dangerous. ” image-2=”” headline-3=”h2″ question-3=”Are there other blood types as rare as Sara? ” answer-3=”Yes, there are other rare blood types, but the Sara type is unique because it’s been found in only two families worldwide.” image-3=”” count=”4″ html=”true” css_class=””]
