Health A-Z


Clinical Definition Sarcoidosis is a systemic disease caused by an exaggerated inflammatory response by the immune system after environmental stimuli. The response causes the formation of granulomas. Although granulomas may develop anywhere on the body, they commonly occur in the lungs causing interstitial fibrosis. There may be a genetic predisposition, but the etiology is unknown.


Clinical Definition Severe acute respiratory syndrome (SARS) is a viral infectious disease that results in a serious respiratory infection. The causative agent is a SARS-associated coronavirus. SARS often causes pneumonia-like symptoms to develop, which can lead to acute respiratory distress syndrome (ARDS). It is most often spread through respiratory droplets. The virus’s incubation period (from

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