Some more non-settled science, courtesy of The Ottawa Hospital:
A large Canadian study has shown a link between blood donor characteristics and transfusion recipients' outcomes. This is the first study to suggest that red blood cell transfusions from young donors and from female donors may be associated with poorer survival in recipients.
Guess the old simple classification system of sorting all blood into a couple of types was too simple. Just because blood doesn't cause an instant life threatening reaction doesn't mean it is totally compatible.
And like any good science article, the conclusion is "more research is needed!"
(Score: 2) by driverless on Wednesday July 13 2016, @05:40AM
More like "Research finds that if you throw enough free variables into something, you can eventually find a sort-of straight line even if you have to use a double-antilog graph for it". There's a ton of similar research along these lines, e.g. that the teenage suicide rate tracks the number of Porsche's on the road, and other astounding correlations.