lung and airway disorders
Hypersensitivity Pneumonitis
Symptoms of Hypersensitivity Pneumonitis
Depending on how quickly symptoms develop, hypersensitivity pneumonitis may be Acute Subacute Chronic Inacute hypersensitivity pneumonitis,people develop fever, cough, chills, and shortness of breath typically 4 to 8 hours after re-exposure to significant amounts of the causative organic dust. Wheezing is unusual. If people have no further contact with the antigen, symptoms usually diminish over a day or two, but complete recovery may take weeks. Subacute hypersensitivity pneumonitisdevelops more slowly. Cough and shortness of breath may develop and worsen over days or weeks. Sometimes symptoms may be so severe that people need to be hospitalized. people repeatedly come in contact with an antigen over months to years, and lung scarring (fibrosis) may result. Shortness of breath during exercise, cough, and fatigue, may gradually progress over months or years. Eventually, the disease may lead to Respiratory Failure . Older people may be more prone to chronic, progressively worsening disease because they have been exposed to an antigen for a long period of time. 