Community acquired pneumonia accounts for 600,000 hospital admissions a year. Many patients with this disease are quite ill and have a very high mortality. To save lives, the appropriate antibiotics should be given in a timely basis, but it is not clear what the best antibiotics are and how long they should be given. In this podcast we interview the author of a JAMA review on community acquired pneumonia, Dr Jonathan Lee, author of Antibiotic Therapy for Adults Hospitalized With Community-Acquired Pneumonia, who performed a systematic review of the literature to determine the best way to treat community acquired pneumonia.