A 21-year-old woman comes to the university health clinic ...

A 13-year-old boy comes to the office because of an 8-day history of a fever, sore throat, and extreme "tiredness". He also complains of a "red rash" that he noticed 5 days ago. He had been seen at a 24-hour clinic 6 days ago for a sore throat, and even though no diagnostic test was performed, he was treated with a 5-day course of ampicillin. ................
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