1. Division of Critical Care Medicine, Department of Anesthesiology and Pain Medicine, University of Washington School of Medicine, Seattle, Washington, USA
2. Department of Pathology, Stanford University School of Medicine, Stanford, California, USA
3. Clinical Virology Laboratory, Stanford Health Care, Stanford, California, USA
4. Department of Laboratory Medicine, University of Washington School of Medicine, Seattle, Washington, USA
5. Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
6. Department of Anesthesiology and Pain Medicine, University of Washington School of Medicine, Seattle, Washington, USA
7. Division of Allergy and Infectious Diseases, University of Washington School of Medicine, Seattle, Washington, USA
8. Division of Infectious Diseases and Geographic Medicine, Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
9. Center for Biomedical Informatics Research, Stanford University, Stanford, California, USA
10. Department of Epidemiology, University of Washington School of Public Health, Seattle, Washington, USA