John S. Bradley, MD, FAAP, has been the Medical Director of the Division of Infectious Diseases at Rady Children's Hospital-San Diego since 1988, and is currently Distinguished Professor of Pediatrics, Division of Infectious Diseases, Department of Pediatrics, University of California, San Diego School of Medicine. He has served on the American Academy of Pediatrics Committee on Infectious Diseases (Red Book Committee) 2004-2010, and the Council of the Pediatric Infectious Diseases Society (PIDS) Council, 2007-2011. He was a member of the FDA's Anti-Infective Drug Advisory Committee (2002-2006) and remains on the FDA Consultants and Advisors Staff. He has participated in national guideline development for Influenza, Community-acquired pneumonia, Osteomyelitis, Bacterial Arthritis, Intra-abdominal Infections, and Anthrax.

John D. Nelson, MD is Professor Emeritus of Pediatrics at the University of Texas Southwestern Medical Center and Children's Medical Center, the same institution since he started his career back in 1957. At UT Southwestern he established the first formal Pediatric Infectious Disease fellowship program with Dr. Kenneth Haltalin and later Dr. George McCracken. He also went on to establish the National Pediatric Infectious Disease Seminar with Dr. McCracken and in 1982 they founded the Pediatric Infectious Disease Journal for which they continue as Chief Editors. In 1975 Dr. Nelson produced the first edition of the Pocket Book of Pediatric Antimicrobial Therapy which has gone through 20 biennial editions and is now edited by Dr. John Bradley.