There have been many definitions of epidemiology. In the past 50 years or so, the definition has broadened from concern with communicable disease epidemics to take in all phenomena related to health in populations.
Author: John M. Last Professor of Epidemiology University of Ottawa (Emeritus)
Publisher: Oxford University Press, USA
Dictionary making never ends because languages are always changing. Widely used throughout the world, this book will continue to serve as the standard English-language dictionary of epidemiology and many from related fields such as biostatistics, infectious disease control, health promotion, genetics, clinical epidemiology, health economics, and medical ethics. The definitions are clear and concise, but there is space for some brief essays and discussions of the provenance of important terms. Sponsored by the International Epidemiological Association, the dictionary represents the consensus of epidemiologists in many different countries. All the definitions were reviewed repeatedly by an international network of contributors from every major branch of epidemiology. They are authoritative without being authoritarian. The Fourth Edition contains well over 150 new entries anad substantial revisions of about the same number of definitions, plus a dozen new illustrations. Many of the new terms relate to methods used in environmental and clinical epidemiology.