How probable is it that one of my males keeps getting cocci? I have gone through it with him two or three times now. Fecals have shown a high load of cocci and barber pole in the past. I wormed with ivomec the first time and cydectin the second time. Treated both times with Corid. The scours just keep coming back after clearing up for a week or two. Is it possible that he is getting reinfected with it or a missed diagnosis?