Rh negative factor has been discussed in the past, I will look for the info to repost. It is the Rh Negative Blood Group, that is rare. It occurs in 15% of the population, most traces to the Basques, O- m occurs in Native Americans, I have that type, possibly is mostly Northern European, and Southern France. Type Rh Negative Blood into a search engine and you get some interesting hits, from descendants of the Nephlim to Ancient Astronauts. It seems the Atlanteans were O-. Could be also Children of Israel. Medical issues come with it I'm learning, besides the problem with having a RH positive Baby.
The Basque History of the World
Found at: https://books.google.com/books?id=A39NF ... ve&f=false
Written by: Mark Kurlansky
Less subjective physical evidence of an ancient and distinct group has also surfaced. In the beginning of the twentieth century, it was discovered that all blood was one of three types: A, B, or O. Basques have the highest concentration of type O in the world-more than 50 percent of the population-with an even higher percentage in remote areas where the language is best preserved, such as Soule. Most of the rest are type A. Type B is extremely rare among Basques. With the finding that Irish, Scots, Corsicans, and Cretans also have an unusually high incidence of type O, speculation ran wild that these peoples were somehow related to Basques. But then, in 1937, came the discovery of the rhesus factor, more commonly known as Rh positive or Rh negative. Basques were found to have the highest incidence of Rh negative blood of any people in the world, significantly higher than the rest of Europe, even significantly higher than neighboring regions of France and Spain. Cro-Magnon theorists point out that other places known to have been occupied by Cro-Magnon man, such as the Atlas Mountains of Morocco and the Canary Islands, also have been found to have a high incidence of Rh negative.
Twenty-seven percent of Basques have O Rh negative blood. Rh negative blood in a pregnant woman can fatally poison a fetus that has positive blood. Since World War II, intervention techniques to save the fetus have been developed, but it is probable that throughout history, the rate of miscarriage and stillborn births among the Basques was extremely high, which may be one of the reasons they remained a small population on a limited amount of land while other populations, especially in Iberia, grew rapidly.