1. Gastroenteritis and Respiratory Virus Laboratory Branch, Division of Viral Diseases
2. Biotechnology Core Facility Branch, Centers for Disease Control and Prevention, Atlanta, Georgia
3. Department of Laboratory Medicine, University of Washington, Seattle, Washington
4. Viral and Rickettsial Disease Laboratory, California Department of Health Services, Richmond, California
5. Departments of Pediatrics and Microbiology and Immunology, Vanderbilt School of Medicine, Nashville, Tennessee
6. Department of Infectious Diseases, University of Rochester School of Medicine and Dentistry, Rochester, New York