A microbiologist is reading a sputum culture and notices tha…

A microbiologist is reading a sputum culture and notices that there is no growth on the sheep blood and MacConkey agars, but there is growth on the chocolate plate. The colonies on the plate are translucent, moist, smooth, and convex, with a mousy odor. The dALA test was negative. What is the most likely identification of the organism (M32-30; Level 3)?

A young child arrives at the doctor’s office with significan…

A young child arrives at the doctor’s office with significant fever and difficulty swallowing.  Physical assessment shows that the left side of the lower jaw is swollen and tender. The child has not been vaccinated due to the lack of medical insurance coverage. Which of the following viral diseases is the most likely cause of this condition (M66-13, 26; Level 3)?

An immunocompromised patient from the mid-west became severe…

An immunocompromised patient from the mid-west became severely anemic.  A bone marrow sample showed macrophages with numerous small oval yeast cells inside.  Lung tissue biopsy also showed alveolar macrophages with intracellular budding yeast.  Similar organisms were seen in biopsy samples of the spleen and liver.  The fungal culture demonstrated large macroconidia with finger-like projections.  The most likely organism involved is (M60-13, 15, 17, 21; Level 3):