eudaimonia wrote:
Will someone please explain to me what the Rh factor has to do with Rhesus monkeys? The internet is failing me right now.
The scientists first discovered this protein tag on blood cells in Rhesus monkeys, the standard lab animal at the time. They then found that most, but not all, humans also have the protein. Rhesus + versus - differentiates those with & without this factor. It was thought the factor was a mutation from the original '-' state & as it is a dominant gene it is slowly replacing the negs. (But we've not died out yet, speaking as an O neg myself. The blood donor service is like my own personal vampire stalker, always writing to me or phoning up
vanting my blod darlink ! )
Until that point the only blood types were thought to be A, B, AB, O (A & B being two diff proteins & O being the absence of either). Since then haematology research has gone on to find hundreds of subtypes, but for most of the Western world the ABO-Rhesus system suffices. Often need more careful matching for transplantation patients & outside of the Euro/East Asian ethnicity groups etc. If these are minority groups they often are the hardest to get donors, so can make life even tougher for patients. Same for Europeans who live in East Asia - there it can be very hard to source Rh neg blood for foreign patients.
Feh, that was going to be a short post.