A 40-year-old man with a history of confusion for the past 2…
A 40-year-old man with a history of confusion for the past 2 days and a grand mal seizure that occurred this morning. He is HIV antibody positive and has a CD4 count of 100/mL with a temperature is 37.5°C. MRI reveals several “ring-enhancing” cavitary brain lesions. He has not traveled outside of the United States, is employed as the manager of a supermarket, is a strict vegetarian, and has several household pets, namely, a dog, a cat, a parrot, and a turtle. Which one of the following organisms is the MOST likely cause?