Lessons from across the pond: what the US can learn from European immunization programs.

Childhood immunizations are the most effective clinical preventive services ever developed. Western European countries have a variety of governmental and non-governmental agencies involved in the development and operation of their immunization programs. Because of the range of programs in place across the European continent, various components of the US system parallel specific components of a variety of countries. Examining the experiences of other countries which have attempted to address issues now faced by the US can be valuable. However, such examinations are only of value if both the country and the policy itself to be examined are placed within the context of the US health care system and US policy constraints.