What is next? There are many pathogens, autoimmune diseases, and cancers that may be promising targets for vaccine research and development.

This volume provides an analytic framework and quantitative model for evaluating disease conditions that can be applied by those setting priorities for vaccine development over the coming decades. The committee describes an approach for comparing potential new vaccines based on their impact on morbidity and mortality and on the costs of both health care and vaccine development. The book examines:
-- Lessons to be learned from the polio experience.
-- Scientific advances that set the stage for new vaccines.
-- Factors that affect how vaccines are used in the population.
-- Value judgments and ethical questions raised by comparison of health needs and benefits.

The committee provides a way to compare different forms of illness and set vaccine priorities without assigning a monetary value to lives.