Welcome to the Pediatric Infectious Diseases Society (PIDS) Fellowship Guide! We are delighted to share your interest in a career in pediatric infectious diseases. Our subspecialty offers a wide range of exciting opportunities to make a difference in pediatric health care. Whether you are just beginning to consider training in infectious diseases, or you are already a fellow, we hope this guide will answer many of the questions you may have. If you have additional questions or suggestions for this guide, please send them to the PIDS Headquarters office at pids@idsociety.org.