You probably know your blood type: A, B, AB or O. You may even know if you’re Rhesus positive or negative. But how about I tell you that in addition to those 2 systems (ABO and Rhesus), one could have as far as 28 other types in his blood? Intriguing, isn’t it? 28 in fact, until a week ago. The number has now grown to 30 with the discovery of 2 new blood types, raising the total, alongside the classics we know to 32 blood types discovered so far. MNS, Lewis, Duffy, Kidd, Kell are the … [Read more...]