The subject of IV drug use came up today in the context of sharing dirty equipment.
We know that there's enough blood left in the syringe from the previous user to potentially pass diseases, right?
Now, people have different blood types, and it's really not a good idea to give, say, B- to someone with A+ blood. In fact, it can be fatal to mix different blood types.
Which got me wondering -- do IV drug users ever have bad reactions to other users' blood types?