2 Days Of High in Medicine / Internal Medicine — Case | Infectious Diseases | SMLE Q#16533
SMLE Question #16533
Medicine / Internal Medicine
Infectious Diseases
Objective: OBJ-349
Last updated: February 2026
A 7-month-old boy who has not received routine vaccinations is brought to the emergency department with 2 days of high fever, poor feeding, progressive lethargy, and irritability. Examination shows somnolence, a full anterior fontanelle, and nuchal rigidity. Lumbar puncture is performed; cerebrospinal fluid results are shown. Which organism most likely caused his meningitis?
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