Patients diagnosed in the emergency department with CAP that requires hospitalization provide a sputum sample for culture and sensitivity testing, urine for detection of S. pneumonia and L. pneumophila, an anterior nasal swab for S. aureus PCR, a nasopharyngeal swab for S. pneumonia PCR and the FilmArray LRTI v.2.0 IUO Panel, and blood for procalcitonin testing and, in cases in which the patient is suffering rigors and hypotension, cultures. As part of this study, sputum or sputum equivalent will be acquired for testing using the FilmArray LRTI v.2.0 IUO Panel.