URL: http://www.nlm.nih.gov/medlineplus/ency/article/001082.htm
Source: U.S. Department of Health and Human Services, National Institutes of Health, National Library of
Medicine, MEDLINEplus Medical Encyclopedia
"Histoplasma grows as a mold in soil and infection results from inhalation of airborne fungal particles. Soil
contaminated with bird or bat droppings may have a higher concentration of mold..."