A 18 year old student develops fever, cough and chest pain. Lymph node biopsy revealed granulomatous inflammation and macrophages engorged with oval structures measuring 2-4μm. the student has most likely acquired infection from
|C||Soil enriched with bird excrement|
|D||Another human via respiratory tract|
a.This is the characteristic manifestation of infection with a dimorphic fungus: Histoplasma capsulatum.
b. The reservoir of infection is soil contaminated with bat or chicken feces.
c.The infection is diagnosed by demonstrating intracellular single budding yeast cells in the tissue.