1. Division of Clinical Microbiology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA
2. Division of Infectious Diseases, Mayo Clinic, Rochester, Minnesota, USA
3. Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, Arizona, USA
4. Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, Florida, USA
5. Minnesota Department of Health, St. Paul, Minnesota, USA