Managing Shigellosis Outbreaks Among Persons Experiencing Homelessness

Managing Shigellosis Outbreaks Among Persons Experiencing Homelessness

The Shigellosis Outbreak Management Toolkit supports public health agencies in investigating and controlling shigellosis outbreaks among people experiencing homelessness (PEH). It provides practical checklists, investigation guidance, sanitation protocols, and more for effective outbreak response.

Why public health investigation teams should use this toolkit

Shigellosis outbreaks among PEH can be difficult to investigate due to limited access to hygiene facilities, complex social needs, and barriers to healthcare. This toolkit delivers targeted strategies for navigating these challenges, including best practices for interviewing, alternative data collection methods, cleaning and hygiene guidance, isolation considerations, and field‑ready control measures. It helps public health teams reach hard‑to‑engage populations and implement interventions in shelters, encampments, and other high‑risk environments.

Key features of the toolkit

  • Evidence-Based Guidance: Incorporates lessons learned from real-world outbreak responses in counties across the United States. 
  • Comprehensive Coverage: Addresses all aspects of outbreak management from initial response through case investigation, laboratory testing, education, and communication strategies.
  • Practical Tools: Includes ready-to-use checklists, questionnaires, educational materials, and communication templates specifically designed for PEH populations.

 

Who should use the toolkit?

Primary audience: Public health agencies responding to shigellosis outbreaks among PEH.

Secondary audience: Healthcare facility leadership, homeless services providers, parks & recreation staff, and other partners involved in outbreak response.

Download the Complete Toolkit

Access the full toolkit including checklists, educational materials, and implementation guidance.

Toolkit Sections

Background

  • Checklist for response
  • Shigellosis quick facts
  • Risk factors and transmission
  • Clinical management

Surveillance and Control

  • Case investigation and interviewing
  • Advanced interviewer training resources
  • Data collection considerations
  • Community partnership strategies

Cleaning, Sanitation, and Hygiene

  • Blech solution recipes
  • Cleaning instructions for facilities
  • Handwashing promotion materials
  • Environmental survival information

Additional Control Measures

  • Portable toilet implementation
  • Handwashing station setup
  • Hygiene kit distribution
  • Isolation strategies for shelters

Laboratory Testing

  • Diagnostic methods overview
  • Specimen collection in the field
  • Environmental sampling guidance
  • Public health laboratory coordination

Education and Communication

  • Educational materials for different audiences
  • Sample press release and notifications
  • Antibiotic resistance messaging
  • Multilingual resources

Developed by: Washington Integrated Food Safety Center of Excellence in collaboration with the California Department of Public Health

Last Updated: June 2026