Case Presentation: A 61-year-old male with no known past medical history presented with one week history of generalized malaise and exertional dyspnea. He had undergone a dental procedure six weeks ago. He drank alcohol occasionally but denied smoking or illicit drug use. On admission, he was febrile (Temp 101.6F), tachycardic (HR 113), tachypneic (RR 25) [...]