control selection

A Multistate Outbreak of E. coli O157:H7 Infection

Based on two outbreak investigations undertaken in Michigan and Virginia in 1997, eventually linked to consumption of alfalfa sprouts.

Objectives: 

Investigation: 
Outbreak
Country: 
United States
Year: 
2002
Author (s): 

Jeanette Stehr-Green

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Tampons and Toxic Shock Syndrome

The initial outbreak investigations of toxic shock syndrome in 1980 using a series of matched case-control studies.  Case study focuses on matching, secondarily on surveillance.

 

Objectives:

  • Describe the concepts, applications, and limitations of matching in case-control studies;
  • Analyze matched case-control data; and
  • Discuss the issues involved in appropriate selection of controls in case-control studies.
Investigation: 
Outbreak
Country: 
United States
Year: 
1983
Author (s): 

Richard Dicker and Ruth Berkelman

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