A 10-month-old girl had a fever (temperature, 38.5°C [101°F] to 40°C [105°F]) for 3 days. She was treated with acetaminophen and had not been given any other medication. On the fourth day, the fever subsided and a rash appeared. The baby had begun attending day care 2 months earlier. There was no associated cough, vomiting, or diarrhea.Afebrile infant with rosy pink macules and patches on the trunk and face. The rash blanched on pressure. All other physical examination findings normal.
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