Hypothesis Generation during a Foodborne Illness Outbreak
Hypothesis generation is a crucial step in identifying potential food vehicles during a foodborne illness outbreak. Here we summarize tools and resources on hypothesis generation from the CoEs and other organizations.
CO CoE Hypothesis Generation ECHO Training
This Extension for Community Health Outcomes (ECHO) training series is designed to encourage foodborne epidemiologist to take advantage of a variety of data and tools available to them when they generate a hypothesis for an outbreak. This series is offered in partnership with the Colorado CoE, Rocky Mountain Public Health Training Center, and ECHO Colorado.
CO CoE Hypothesis Generation Toolkit
The Hypothesis Generation Toolkit is a two-page handout that provides public health professionals with tips, tools, and resources for successfully generating a hypothesis during a foodborne illness outbreak. Guidelines to consider when developing an effective hypothesis are highlighted. Links are provided to a variety of hypothesis generating resources, including questionnaires and food-pathogen pairs.
- Click here to view the toolkit
National Outbreak Reporting System Dashboard
The NORS Dashboard is a web-based tool that includes data on outbreak since 1998 of foodborne, waterborne, and enteric diseases. Fields include year, state, etiology, setting, hospitalizations, and food/ingredient.
CO CoE Salmonella Serotype Tables
These tables summarize food and animal sources associated with past Salmonella outbreaks by serotype.
CDC's Atlas of Salmonella in the United States, 1968-2011
The Salmonella Atlas summarizes surveillance data on Salmonella isolates from humans, including analyses by age, sex, geoography, and season. It also references non-human isolates from animals and environments.
FDA Bad Bug Book
The Bad Bug Book is an encyclopedia of information on foodborne pathogenic microorganisms and natural toxins, including microbiological characteristics, clinical information, epidemiology, and example outbreaks.
International Association for Food Protection Keys
The IAFP Keys identify the principal and potential contributing factors to consider by pathogen at each stage of the farm to fork continuum for food categories.
CO CoE Outbreak Source Prediction Tool
This tool is a resource to help with hypothesis generation during an enteric disease outbreak investigation. The tool uses demographic and outbreak characteristics to predict potential sources during an ongoing STEC or Salmonella investigation.
Case Exposure Assessment
Oregon Binomial Probability Worksheet
Binomial probabilities are a tool for identifying and refining hypotheses using initial exposure information to identify if the commonalities you are seeing between cases is truly above what you would expect.
FoodNet Population Survey Atlas of Exposures
The FoodNet Population Survey summarizes demographic characteristics, food consumption, and animal exposure information in FoodNet sites as an average exposure in the seven days prior to interview.