Goodpasture's syndrome is a rare disease that can affect the lungs and kidneys. Also called anti-glomerular basement antibody disease, it is an autoimmune disease -- condition in which the body's own defense system reacts against some part of the body itself. When the immune system is working normally, it creates antibodies to fight off germs. In Goodpasture's syndrome, the immune system makes antibodies that attack the lungs and kidneys. Why this happens is not fully understood. Researchers have identified a number of possible causes, among them the presence of an inherited component; exposure to certain chemicals, including hydrocarbon solvents and the weed killer Paraquat; and viral infections.