G. D. Hsiung is Director Emeritus, Virology Reference Laboratory, Department of Veterans Affairs Medical Center, West Haven, Connecticut, and Professor Emeritus of laboratory medicine at the Yale University School of Medicine. Carolyn K.Y. Fong is Section Chief, General Diagnostic Virology, Virology Reference Laboratory, Department of Veterans Affairs Medical Center, West Haven, Connecticut, and Research Scientist of Laboratory Medicine at the Yale University School of Medicine. Marie L. Landry is Director of the Clinical Virology Laboratory, Yale New Haven Hospital, Director of the Virology Reference Laboratory, Department of Veterans Affairs Medical Center, and Associate Professor of Laboratory Medicine and Medicine (Infectious Diseases) at the Yale University School of Medicine.