University of California, San Francisco (UCSF), affiliation not provided to SSRN, affiliation not provided to SSRN, University of California, San Francisco (UCSF) - Departments of Otolaryngology-Head and Neck Surgery and of Microbiology and Immunology, affiliation not provided to SSRN, affiliation not provided to SSRN, Yale University School of Medicine - Department of Dermatology, University of California, San Francisco (UCSF) - Department of Medicine, affiliation not provided to SSRN, University of California, San Francisco (UCSF) - Department of Microbiology and Immunology, Stanford University, affiliation not provided to SSRN, affiliation not provided to SSRN, UCSF, affiliation not provided to SSRN, University of California, San Francisco (UCSF) - Department of Microbiology and Immunology, University of California, San Francisco (UCSF) - Departments of Otolaryngology-Head and Neck Surgery and of Microbiology and Immunology, affiliation not provided to SSRN and University of California, San Francisco (UCSF) - Department of Microbiology and Immunology