Occam's Razor

Brandon is 22-year-old male, who ends up passing out after having rowdy sex with his fiancée. He complains of abdominal pain, nausea, and suffers from fever and low blood pressure. House and Foreman test out their theories, but after a dangerous drop in white blood cells, they realize they must find a solution and soon. Meanwhile in the clinic, House must deal with a boy and an unusual situation involving a MP3 player.