A young woman went to the Emergency Room with irritated eyes. After examining her, the physician found she had an infection in both of her cornea. A culture of the lesion revealed sickle cell-shaped conidia. What is the causative agent (M60-21; Level 3)?
Read DetailsA unit of blood was donated at a local blood drive last week and tested for a variety of infectious diseases. The combination test for HIV-1 and HIV-2 was positive but with a very weak titer. What action steps should be taken next?
Read DetailsA patient from Arizona showed large sac-like structures from a sputum culture on direct wet mount. Lactophenol Cotton Blue stain revealed numerous small cells inside the sac, but no budding-yeast forms. The culture grew a soft, white, fluffy mold with arthroconidia. This organism is most likely (M27-14, M27-15, M60-17, 21; Level 3):
Read DetailsA specimen of hair from a child with low-grade scaling lesions of the scalp fluoresced under a Wood lamp. Culture identified the organism as Microsporum audouinii. Which of the following is most likely true of the microscopic observations (M59-17, 21; Level 3)?
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