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Investigation of Disease Outbreaks01:23

Investigation of Disease Outbreaks

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A High-throughput Platform for the Screening of Salmonella spp./Shigella spp.
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A descriptive analysis of multi-jurisdictional enteric illness messaging web analytics data, 2020-2022.

Vayshali Patel1,2, Jennifer McWhirter1, Melissa MacKay1

  • 1Department of Population Medicine, University of Guelph, Guelph, ON.

Canada Communicable Disease Report = Releve Des Maladies Transmissibles Au Canada
|June 29, 2026
PubMed
Summary

Online engagement with Public Health Notices (PHNs) for enteric illness outbreaks in Canada decreased over three years. Mobile and search access dominated, indicating a need for improved search optimization and social media strategies.

Keywords:
enteric illnesshealth communicationonline communicationrisk communicationuser experience

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Area of Science:

  • Public Health Communication
  • Infectious Disease Surveillance
  • Digital Health Analytics

Background:

  • Effective online communication is crucial for disseminating information during multi-jurisdictional enteric illness outbreaks in Canada.
  • The Public Health Agency of Canada (PHAC) utilizes web-based Public Health Notices (PHNs) for outbreak communication and prevention.
  • No prior studies have investigated online engagement with PHAC's PHNs.

Purpose of the Study:

  • To assess access to and engagement with online information regarding multi-jurisdictional enteric illness outbreaks.
  • To analyze website traffic and engagement metrics for PHAC's PHNs.

Main Methods:

  • Collected data on page/screen metrics, geographic location, device/browser types, and traffic sources for PHAC's PHN webpages (2020-2022).
  • Calculated descriptive statistics for page/screen metrics and proportional frequencies for geographic location, device type, and traffic source.
  • Utilized R Studio for data tabulation and visualization.

Main Results:

  • PHN webpages averaged 2,729 page views and 2,490 visits, showing a non-significant decrease over the study period.
  • Average session duration was 165 seconds, with a non-significant increase over time.
  • Most visits originated in Canada (89.0%) and were from mobile devices (74.6%), with search engines (49.1%) as the primary traffic source.

Conclusions:

  • Engagement with PHAC's PHN webpages declined from 2020-2022.
  • Mobile and search-driven access were dominant, while social media generated minimal traffic.
  • Opportunities exist to enhance search optimization and social media amplification for improved outbreak communication.