These coccidia tend to be pretty species specific, so infection of a puppy or kitten is not thought to be a risk to humans and puppies are not a risk to cats or infected kittens a risk to dogs.
Not exact matches
As the puppy matures it
tends to develop a natural immunity to the effects of
coccidia if the immune system is kept strong.
It isn't impossible that
coccidia could cause problems but I would
tend to look in other directions.