Principles and practice of pediatric infectious diseases / editor, Sarah S. Long, MD, Professor of Pediatrics, Drexel University College of Medicinem Cheif, Section of Infectious Diseases, St. Christopher's Hospital for Children, Philadelphia, Pennsylvania ; associate editors, Charles G. Prober, MD, Professor of Pediatrics, Microbiology, and Immunology, Senior Associate dean for Medical Education, Stanford University School of Medicine, Stanford, California, Marc Fischer, MD, MPH, Medical Epidemiologist, Arboviral Diseases Branch, Centers for Disease Control and Prevention, Fort Collins, Colorado.