A woman from Guatemala developed a bifrontal headache and fever. After sleeping for 24 hours, she was difficult to arouse, somnolent, confused, and unable answer questions or follow commands, with fever to 38.3°C (101.0°F). The pupils reacted sluggishly; extra-ocular movements were grossly intact. The white cell count was 17,900 per cubic millimeter (neutrophils 14,770 per cubic millimeter). MRI of the brain, FLAIR view, is shown.
The most likely diagnosis is which of the following?
What is the diagnosis?
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