I am frankly SHOCKED by all the people who get puppies from breeders and the puppies have giardia and coccidia. Or other parasites.
I would think that before you breed two dogs you would at least have them checked for something like parasites, not to mention all the other recommended health issues in yorkies. Even if you were just an ignorant pet owner sticking two dogs together, it seems you'd at least make sure they were physically healthy enough to breed and had basic health screening like a fecal.
I keep assuming the people they get these sick puppies from are actually parasites themselves. True?