One wasp can sting you a couple of times without stop but a bee can only string you ones and then it dies. A wasp don't lose its stinger that is way it can sting you more than ones. I Bee looses his stinger and that is way it can only sting ones and die.
If you are allergic to Bee stings then one Bee would be enough to kill you
If you are allergic to Bee stings then one Bee would be enough to kill you