1. Division of Infectious Diseases, Department of Internal Medicine, University of Utah School of Medicine, Salt Lake City, UT, USA.
2. Division of Microbiology and Immunology, Department of Pathology, University of Utah School of Medicine, Salt Lake City, UT ,USA.
3. Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City, UT, USA.
4. Primary Children’s Hospital, Salt Lake City, UT, USA.