From authors Friis and Sellers comes the Fourth Edition of this best-selling introduction to epidemiology: Epidemiology for Public Health Practice. In clear and accessible language, this comprehensive text will introduce your students to the most important and timely issues in epidemiology today.

New to this edition:

Information on new disease outbreaks:
E. coli in spinach
Avian influenza
XDR TB
Expanded coverage of the history of epidemiology
New coverage of the natural history of disease
Updated coverage of morbidity and mortality data throughout the text
Method for rate adjustment updated to the 2000 standard population
New information on health disparities, including the Hispanic mortality paradox
Updated information on data sources including notifiable diseases
Additional statistical measures provided, e.g., measures of life expectancy
New coverage of models of causality
New chapter on professional issues in epidemiology
Exciting new figures, tables, and exhibits provided throughout
Additional exercises and study questions