Cryptosporidiosis in Georgia (United States)

Date published
Jeanette Stehr-Green


Investigation of a large, community-wide outbreak of cryptosporidiosis in Georgia in 1987 that resulted from contamination of a public water supply that met all standards in effect at the time.  

Learning Objectives:

After completing this case study, the student should be able to:

  1. Discuss epidemiologic clues indicative of a waterborne disease outbreak as opposed to a foodborne disease outbreak;
  2. Describe a boil-water advisory and discuss problems that might be encountered in issuing such an advisory;
  3. Help plan a community survey to determine the prevalence and distribution of a health problem;
  4. Interpret a dose-response analysis for an exposure and development of a disease;
  5. List activities that should be included in the evaluation of a public water system associated with an outbreak;
  6. Define turbidity and total coliform count and discuss how each are used to indicate drinking water quality;
  7. Discuss the typical steps used in the treatment of surface water at a community water treatment plant; and
  8. Describe the clinical features, epidemiology, and control of cryptosporidiosis.
Author type
Resource type
Case Study
Field investigation
Country or Area
United States of America