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.
Bacterial Pneumonia Causes. 1  Most pneumonia is caused by bacteria or a virus. 2  Pneumonia from any cause can occur at any age, but people in certain age groups are at higher risk for certain types of pneumonia.f you inhale toxic materials, you can injure your lungs and cause chemical pneumonia. Fungus also can cause pneumonia. In certain areas of the United States, specific fungi are well known. Coccidioidomycosis causes a pneumonia called San Joaquin fever or  Valley fever  in the desert regions of California.