Although it is well known that vaccines against many infectious diseases confer positive economic externalities via indirect protection, analysts have typically ignored possible herd protection effects in policy analyses of vaccination programs. Despite a growing literature on the economic theory of vaccine externalities and several innovative…

Noting that a quarter of a million children in the developing world die each week and that millions more live with ill health and poor growth, this handbook presents practical, low-cost ways of protecting children's lives and health. It is directed to those people who are in the position to communicate this information to families, such as health…

Examines poliomyelitis in the United States by reviewing clinical manifestations and outcomes, history, recent epidemiologic characteristics, characteristics of currently available vaccines, controversies surrounding vaccination policy, current poliovirus vaccination recommendations, and prospects for worldwide eradication. Poliomyelitis remains…

Noting that each year nearly 11 million children die from preventable causes before reaching their fifth birthday, this handbook contains practical, low-cost ways of protecting children's lives and health. The handbook is directed to those in positions to communicate the information to families, such as health workers, teachers, government…