Will Falconer, DVM Moderator
Yes, Joan, I was thinking of these as I wrote the post. I think perhaps a better model, based on this parvo model, would be a "chicken pox drive by," where the neighbor kids stop in for a brief bedside visit and go home again. I suspect they'd get the immunity without the discomfort of a full blown disease state.
I'm sure a natural exposure results in far more efficient immunization than anything a vaccination could provide.
Thanks for your comment.