First and foremost, what is hot tub lung? Not surprisingly, it typically affects patients who spend time in and around pools, hot tubs and other aquatic environments. But several additional issues of this condition require answers, including diagnosis and treatment patterns. Further, how do we gauge the prognosis for patients who suffer hot tub lung? Dr. Gwenn Huitt, a mycobacterial infection specialist from the National Jewish Medical and Research Center, probes these questions and more with host Dr. Lee Freedman.