Tell you the most uncommon blood type
The most common blood type in the world is Type O. The rarest, Type A-H, has been found in less than a dozen people since the type was discovered.
The population breaks down as follows in the USA:
1% AB-
2% B-
3% AB+
6% A-
7% O-
9% B+
34% A+
38% O+
Okay, I looked it up, and it isn’t AB or O negative. I found this on a website:
“The rarest blood type found is called bombay blood (subtype h-h), found only in a Czechoslovakian nurse in 1961 and in a brother and sister in Massachusetts in 1968.”
So, there you go. There is the answer.