invasive pulmonary is a hypersensitivity disorder. It typically occurs in people with asthma or cystic fibrosis. Other diseases include: chronic necrotizing pulmonary aspergillosis, and allergic fungal sinusitis. These pathogens can attack any part of the body, from the sinuses to the lungs to the kidneys. Two Aspergillus species, A. flavus and A. parasiticus, are known to produce toxins only at acidic levels of pH. However, a West African strain of A. flavus actually produces less