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Salmonella in the Caribbean (CB1167)

	Salmonella montage

For years, Salmonella was a pathogen of public health concern in the Caribbean. Because of limited resources, however, the problem received inadequate attention. When outbreaks of diarrhea occurred among tourists at luxury hotels in the region, staff from the Caribbean Epidemiology Centre (CAREC) collaborated with the ministries of health from the affected countries (agricultural and tourism agencies) to find the source.

  • How do case characteristics provide clues to the problem?
  • What studies should be undertaken?
  • What can be done to control the problem?

Work through this case study and help CAREC find the answers to these questions and more.

Target Audience

Web-based version of case study now available at

Available for Download

  • Complete Package (65.6 MB)
    System Requirements:
    • Microsoft® Windows® 95, Windows® 98, Windows® NT® 4.0 with service pack 3 or higher, or Windows® 2000
    • Intel® Pentium® III Processor or equivalent
    • Available hard disk space:
      • 65.6MB, if installing the case study from the CD or downloading the Complete Package from the Internet.
      • 17 MB, if downloading the Alternative Package from the Internet.
    • 16 MB of memory
    • 4x speed (NOTE: Only needed with CD format of program)
    • Monitor resolution of 800 x 600 with 16-bit color
    • Display font size set to "Small Fonts"
    • Mouse

Public health practitioners with knowledge of basic epidemiologic and public health concepts, including epidemiologists, infectious disease investigators, public health nurses, environmental health specialists, sanitarians, laboratorians, and MPH students.

Learning Objectives

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

  • Describe the epidemiology of infection with Salmonella (e.g., incubation period, modes of transmission, and common vehicles)
  • List the steps that might be used to investigate and address a public health problem
  • Describe the desired characteristics of a surveillance system for a disease, given the objectives of the surveillance system
  • Analyze figures that display public health data
  • Interpret the results of a case-control study
  • Discuss the uses of subtyping information in foodborne disease investigations
  • Assist in the evaluation of a surveillance system
  • Discuss how surveillance data can be used to identify and characterize public health problems and to monitor control measures


Knowledge of basic public health and epidemiologic concepts (including descriptive epidemiology, study design, and data analysis).






3 to 4 hours

Developed By

This product stems from a collaboration within the Centers for Disease Control and Prevention (CDC) with individuals from the:

  • National Center for Zoonotic, Vector-Borne and Enteric Diseases; Division of Foodborne, Bacterial and Mycotic Diseases and Food Safety Office
  • Office of Workforce and Career Development; Training Services Division

The development team included Jeanette K. Stehr-Green, MD, and Nancy Gathany, MEd.

Original Investigation Team

The following persons investigated the original salmonellosis problem in the Caribbean: Lisa Indar-Harrinauth, Nicholas Daniels, Parimi Prabbakar, Clive Brown, Gail Baccus-Taylor, Edward Commissiong, Hugo Reid, and James Hospedales.

Font Resizing Instructions

Once you install and run the case study, if you find that the text on the case study notebook appears to be cut-off (e.g., you do not see complete sentences or some of the content seems to be missing), it is likely that you are not using standard fonts in your computer settings. This is easily remedied with the following steps:

  1. Select Start from your Windows desktop (located in the lower left-hand corner of your computer screen).
  2. Point to Settings, and select Control Panel. NOTE: the specific titles for these choices will vary depending on your operating system.
  3. In the Control Panel window, double-click on the Display icon.
  4. In the Display Properties window, select the Settings tab.
  5. Select the button labeled Advanced located at the bottom right of the window. Be sure that the General tab is selected.
  6. Use the pull-down menu to change the Display Font Size to "Small Fonts".
  7. You will be prompted to install the new fonts and restart your computer to apply the changes. To return your computer to its original settings, follow the same series of steps but substitute your original font setting for the "Small Fonts" in Step 6.