O+ blood is useful to about 90% of the world just FYI
whereas the 2nd most common blood type, A+, is only useful to about 33% of the world
source: a debated-accuracy chart on wikipedia
A
B
O
AB
O+ blood is useful to about 90% of the world just FYI
whereas the 2nd most common blood type, A+, is only useful to about 33% of the world
source: a debated-accuracy chart on wikipedia
Posting Permissions
Reply With Quote