Hypersensitivity pneumonitis involves inhalation of an antigen. This leads to an exaggerated immune response (hypersensitivity). Type III hypersensitivity and type IV hypersensitivity can both occur depending on the cause. Diagnosis. The diagnosis is based upon a history of symptoms after exposure to the allergen and clinical tests.
Whitewater definition, of or moving over or through rapids: whitewater rafting down the Colorado River. See more.
bay 1. (bÄ) n. 1. A body of water partially enclosed by land but with a wide mouth, affording access to the sea: the Bay of Biscay. 2. An area of land, such as an arm of prairie partially enclosed by woodland, that resembles in shape or formation a partially enclosed body of water.