Histoplasmosis
Histoplasmosis (also known as "Cave disease," "Darling's disease," "Ohio valley disease," "Reticuloendotheliosis," "Spelunker’s Lung" and Caver's disease) is a disease caused by the fungus Histoplasma capsulatum. Symptoms of this infection vary greatly, but the disease primarily affects the lungs. Occasionally, other organs are affected; this is called disseminated histoplasmosis, and it can be fatal if left untreated. Histoplasmosis is common among AIDS patients because of their suppressed immune system. Histoplasmosis is generally contracted from contact to microscopic fungi borne from decomposing biological fluids, most notably human excretions like urine, vomit, and feces. Cases of histoplasmosis have declined acutely since the Industrial Revolution as quality of life improved dramatically and humans were no longer living in their own squalor. Unfortunately, it is still a major killer in third world countries and can be contracted easily in the first world by living among the aforementioned human fluids.
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