Systemic (deep) mycoses are typically acquired by inhalation of spores from what source?

Systemic (deep) mycoses are typically acquired by inhalation of spores from what source?

• A. Water
• B. Food
• C. Direct skin contact
• D. Soil fungi

Answer: (D)

Systemic fungal infections reach deep tissues after spores are inhaled from the environment. The main reservoir for these fungi is soil, where spores become airborne when the soil is disturbed, allowing breathing in of them into the lungs. From the lungs, the organisms can spread through the bloodstream to other organs, especially in people with weaker immune systems. Examples include Histoplasma capsulatum in soil rich with bird or bat guano, Coccidioides species in arid desert soils, and Blastomyces dermatitidis in moist, decaying organic matter. Water or food aren’t the typical sources for these infections, and direct skin contact tends to cause localized infections rather than a systemic, disseminated disease.

Systemic fungal infections reach deep tissues after spores are inhaled from the environment. The main reservoir for these fungi is soil, where spores become airborne when the soil is disturbed, allowing breathing in of them into the lungs. From the lungs, the organisms can spread through the bloodstream to other organs, especially in people with weaker immune systems. Examples include Histoplasma capsulatum in soil rich with bird or bat guano, Coccidioides species in arid desert soils, and Blastomyces dermatitidis in moist, decaying organic matter. Water or food aren’t the typical sources for these infections, and direct skin contact tends to cause localized infections rather than a systemic, disseminated disease.