Diagnosis of Respiratory Syncytial Virus in Adults Substantially Increases When Adding Sputum, Saliva, and Serology Testing to Nasopharyngeal Swab RT–PCR oleh Julio Ramirez, Ruth Carrico, Ashley Wilde, Alan Junkins, Stephen Furmanek, Thomas Chandler, Paul Schulz, Robin Hubler, Paula Peyrani, Qing Liu, Sonali Trivedi, Sonal Uppal, Warren V. Kalina, Ann R. Falsey, Edward E. Walsh, Kari Yacisin, Luis Jodar, Bradford D. Gessner, Elizabeth Begier