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Human nutrition needs and parasitic infections

The series of articles that follow in this volume deals with specific aspects of how parasites might influence nutrient utilization by their human hosts. To put these aspects of parasitic disease in context, this contribution is intended to provide an overview of human nutritional needs and to introduce concepts of how nutritional consequences of parasitic infection might be viewed. Although parasitic diseases are often considered to be those caused by protozoa and helminths, the principles considered here can be applied to any infectious agent, including bacteria and viruses.