Graft-versus-host disease (GVHD) is a common side effect of an allogeneic bone marrow transplant. An allogeneic transplant uses blood cells from a family member, unrelated donor or cord blood unit.
Nearly all vertebrate animals host one or more species of the protozoan parasites that produce the infection referred to as coccidiiasis or coccidiosis. Thousands of coccidian species of herbivorous, omnivorous, and carnivorous animals have been described, and many more exist that remain unnamed.
At least six species of coccidia live and multiply in the intestines of. chickens. One species (Eimeria ten ella ) develops in the walls of the. ceca, or blind pouches, and causes the cecal type of the disease in. young chickens, a type that is often acute and fatal.