Histoplasmosis causes
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Causes
Histoplasma capsulatum is a fungus found in the soil of the central and eastern United States (especially Mississippi and Ohio river valleys), eastern Canada, Mexico, Central America, and South America.
The infection occurs when a person breathes in the reproducing parts of the fungus, called spores. Those who have a healthy immune system usually do not have symptoms, or only mild ones.
Gallery
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Photomicrograph reveals some of the ultrastructural details exhibited by Histoplasma capsulatum fungal organisms that had been extracted from a Jamaican isolate, which included a number of tuberculate (knobby) spheroidal macroconidia, and diaphanous filamentous hyphae (800X). From Public Health Image Library (PHIL). [1]
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This Giemsa-stained photomicrograph reveals numerous Histoplasma capsulatum fungal organisms in their yeast-stage of development, which were seen in this liver tissue specimen, in this case of disseminated histoplasmosis. From Public Health Image Library (PHIL). [1]