Is there really a blood type u negative?

Question

I was watching this show where someone was asked to donate the MEGA RARE blood type: u negative & I looked it up online & some sites say it's real, but there's not much info on it.

Answer 1

Rare Blood Singular to One Group

''For example, the U negative blood type occurs only in black people,'' said Dr. W. Laurence Marsh, senior vice president of the center. ''No white person has ever been found to be U negative. It is a blood type just like any other, but it doesn't occur very much, and if you need U negative for any person, then you have got to have black donors. And so the problem for us is to identify black donors. It makes no sense to screen 100,000 whites for U negative when no U negative white person has ever been found.''

Conversely, only whites have the blood types Vel negative and Lan negative, Dr. Marsh said. There are records of people having a blood type that exists only in a remote village or in one family.

Despite recent advances in laboratory technology, it remains a daunting task to identify rare blood, and the problem becomes worse if laboratory workers waste time and money testing blood for factors it is not likely to have, said Dr. John W. Adamson, president of the blood center.

Answer 2

nope

Answer 3

I've never heard of it, so I did some research and this was the only website I found that said anything about a u negative blood. But the article as a whole was pretty interesting, so you might check it out, but there is an excerpt.

''For example, the U negative blood type occurs only in black people,'' said Dr. W. Laurence Marsh, senior vice president of the center. ''No white person has ever been found to be U negative. It is a blood type just like any other, but it doesn't occur very much, and if you need U negative for any person, then you have got to have black donors. And so the problem for us is to identify black donors. It makes no sense to screen 100,000 whites for U negative when no U negative white person has ever been found.'' (NY Times Website)

Answer 4

Never heard of it.

The common blood types (A, B, O etc) used for transfusion purposes, are only one of many ways of typing blood.  Another common way is the RH system (+ or -) which is important for pregnant women.