p. 425
Other so-called "systemic" diseases affect deeper organs of the body, often with severe consequences. Some of these, such as coccidioidomycosis ("valley fever") and histoplasmosis, resemble tuberculosis (keep this in mind when you visit TB in chapter 24). The agents that cause these infections are always found in the environment. Coccidioidomycosis, in fact, is typically found among people living in the Western desert of the United States, because the spores of the causative fungus, Coccidioides immitis, survive well in the dust.