The scientific name is Isospora felis, it is a microscopic one-celled organisms.
Isospora infections usually cause no problems in adult cats, but evidence suggests that the parasite can cause significant disease in kittens. In infected kittens, the coccidia destroy the lining of the intestine and cause diarrhea with often contains mucous. Serious infections may develop in crowded environments. Infected cats may exhibit weight loss, weakness, dehydration and diarrhea with possibly blood and/or mucus being present, but often adults are not bothered by it at all
Nearly all cats will contract Coccidia at some point in their lives. There is no need to be concerned unless the cat is a kitten or has an otherwise compromised immune system. Good sanitation and hygiene will help control coccidia.
Fecal examination for oocysts is required for definitive diagnosis. Albon is the most commonly used drug for treatment of Coccidia-is available in suspension form. In severe cases of diarrhea, fluid therapy may be necessary to correct dehydration and electrolyte balance. WF recommends giving a product such as pedialite to the colony in cases of dehydration, regardless of cause.