A 13-month-old black female presented to her family practice office with a four-day history of fever, nasal congestion, and loose stools. Her maximum temperature was 103.9 degrees Fahrenheit, obtained rectally. Symptoms accompanying the fever included diminished appetite, irritability, and malaise. The child is otherwise healthy and up-to-date on immunizations. She resides at home with her parents and was enrolled in daycare one month ago. On the fifth day of the illness, the child’s fever subsided. She then developed an erythematous maculopapular rash restricted to the trunk, sparing the palms, soles, and oral mucosa.