Is a species of coccidia found worldwide, which causes mild disease in young turkeys aged 4–8 weeks (Coccidiosis). The parasite causes disease in the cecum. Here completes its complex life cycle whilst damaging the intestinal cells. Such damage leads to malabsorption, inflammation, haemorrhage, diarrhoea and possibly death. Parasite transmission occurs via the oral-fecal route. Infections are common in farming environments where many animals are confined in a small space.