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Hypersensitivity pneumonitis (HP) or extrinsic allergic alveolitis (EAA) is a syndrome caused by the repetitive inhalation of antigens from the environment in susceptible or sensitized people. [ 1 ] [ 2 ] Common antigens include molds, bacteria, bird droppings, bird feathers, agricultural dusts, bioaerosols and chemicals from paints or plastics ...
Bird fancier's lung (BFL), also known as bird breeder's lung, is a type of hypersensitivity pneumonitis. It can cause shortness of breath, fever, dry cough, chest pain, anorexia and weight loss, fatigue, and progressive pulmonary fibrosis (the most serious complication).
Bagassosis, an interstitial lung disease, is a type of hypersensitivity pneumonitis attributed to exposure to moldy molasses [1] or bagasse dust. [ 2 ] [ 3 ] Signs and symptoms
Suberosis is a type of hypersensitivity pneumonitis usually caused by the fungus Penicillium glabrum (formerly called Penicillium frequentans) from exposure to moldy cork dust. [ 1 ] [ 2 ] Chrysonilia sitophilia , Aspergillus fumigatus , uncontaminated cork dust, and Mucor macedo may also have significant roles in the pathogenesis of the disease.
The term usual interstitial pneumonitis ... chronic hypersensitivity pneumonitis, ... The white space to the left is an airspace. The pale area to the right is a ...
Farmer's lung (not to be confused with silo-filler's disease) is a hypersensitivity pneumonitis induced by the inhalation of biologic dusts coming from hay dust or mold spores or any other agricultural products. [1]
In 1971, the Occupational Safety and Health Administration (OSHA) set a permissible exposure limit (PEL) of 1-mg/m 3 (total dust) for cotton dust in work places. [9] Later in the 1978 OSHA developed the Cotton Dust Standard which aimed to prevent occupational respiratory disease, such as byssinosis, through medical monitoring of employees. [9]
An inflammatory reaction of the airways and alveoli, the mechanism of organic dust toxic syndrome is thought to be toxic rather than autoimmune in origin. [2] The airways are exposed to high concentrations of organic dust created by some form of disturbance or mechanical process.