If I had some dying, I'd take a fecal sample into the vet to see if it was cocci or not. Fairly inexpensive and then you would know what you should be treating. I am dealing with my first outbreak of coccidia and used Corid for several days before switching to sulfadimethoxine. Seems to be getting better, keep your fingers crossed for us. I worm as a precaution twice a year with ivomec.