Brady Pregerson

A 44-year-old woman presents to her local emergency department after 5 days of persistent fever, productive cough, and worsening dyspnea on exertion.

A 33-year-old man presents to the emergency department for 6 small spots on his chest, arms, and legs that gradually grew in diameter after using a topical cream and cephalexin.

A 60-year-old man with a history of gastroesophageal reflux disease presents to the emergency department with 2 to 3 days of fever, nonbloody diarrhea, and a worsening nonpruritic rash. Can you make the diagnosis?