I could wing it on generality of the old "measles party's" theory of gained immunity....which you'd lose based on an opinion there were still more risk involved as it required participants to be infected...which common sense would tell you the more people infected the higher the mortality/consequences of serious life threatening complications....but common sense doesn't prevail with some so I'll go dig and see if I can find some documented evidence somewhere before laying the ground work for this debate.

The other lies on whether once introduced into the body it stays in the body which it don't otherwise people like me who eat a lot of tuna would have long been dead by now....but I'll make sure I bring forth more than just that, like stated dispensation, how much stays in vs how much dissipates, etc.,