I don't care if its the same protozoa or not--I know everything around here can get coccidiosis! My chickens had it. My rabbits in pens off the ground got it. Then our beautiful kitten got it. We were just about to take him for euthanasia, but I decided to try some sulmet on him. He started to improve immediately and is now a big, beautiful healthy cat. I just assumed that I am probably unwittingly running a protozoa farm, with every available species present and thriving. It only seems to affect the very young or very old animals. Or one who was weakened for some reason, like a rabbit who was a new mother.