An authoritative, user-friendly guide to vaccination. Easy to navigate yet replete with up-to-date information, the "Purple Book" contains practical advice and background for the practitioner on vaccine infrastructure, standards and regulations, business aspects of vaccine practice, general recommendations, schedules, special circumstances, and how to address a patient's concerns about vaccines. 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, nurse practitioners, and physician assistants.