1. Clinical Microbiology Laboratories, Strong Memorial Hospital, University of Rochester Medical Center, Rochester, New York, USA
2. Departments of Pathology & Immunology, Washington University School of Medicine, Saint Louis, Missouri, USA
3. Viral Diseases Laboratory, Wadsworth Center, New York State Department of Health, Albany, New York, USA
4. Division of Infectious Diseases, Highland Hospital, University of Rochester Medical Center, Rochester, New York, USA
5. Diagnostic Immunology Laboratory, Wadsworth Center, New York State Department of Health, Albany, New York, USA
6. Departments of Molecular Microbiology, Washington University School of Medicine, Saint Louis, Missouri, USA