FIG. 7.
Corresponding immunofluorescence (A) and brightfield microscopy (B) depicting black particles recovered from the lungs of mice infected with H. capsulatum strain G217B following homogenization and treatment of tissue with enzymes, denaturant, and hot acid, similar in size and shape to H. capsulatum yeast cells. A scanning electron micrograph (C) of the black particles is shown. Bar, 1 μm.