An authoritative, user-friendly guide to immunizations. Easy to navigate yet replete with up-to-date information, the "Purple Book" contains practical advice and background on vaccine program infrastructure, standards and regulations, business aspects of vaccine practice, general recommendations, schedules, special circumstances, and how to address the concerns of parents and patients. Specific information about vaccine-preventable diseases, the rationale for vaccine use, and available products is included. The book is targeted to pediatricians, family practitioners, internists, obstetricians, residents, medical students nurse practitioners, and physician assistants. The Purple Book is one-stop shopping for everything you need to know in using vaccines to prevent disease and preserve health.