About a year ago, I took my dog to a vet. They gave her deworming stuff. I asked a vet whether people can get Parasites from their pets (by them licking our faces, us touching them, etc). He said no, we can't.
That was the end of my visits there.
I did notice that Vet didn't look that healthy. Pertruding stomack (sign of worms), oily skin (probably liver flukes) :-)
Anyway, how could people working with animals not make a connection that parasites can live in any warm body...including humans.