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Related Experiment Video

Updated: Jan 5, 2026

Enhanced Rabies Surveillance Using a Direct Rapid Immunohistochemical Test

Enhanced Rabies Surveillance Using a Direct Rapid Immunohistochemical Test

Published on: April 30, 2019

Updates to the Canadian Notifiable Disease Surveillance System and its interactive website.

S Totten¹, A Medaglia¹, S McDermott¹

¹Centre for Communicable Diseases and Infection Control, Public Health Agency of Canada, OttawaON.

Canada Communicable Disease Report = Releve Des Maladies Transmissibles Au Canada

|October 25, 2019

Summary

The Canadian Notifiable Disease Surveillance System (CNDSS) updated its disease case definitions and interactive website. These changes enhance public health monitoring and data accessibility for diseases like hepatitis C, Lyme disease, and tuberculosis.

Keywords:

Canada case definition notifiable diseases surveillance update

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Area of Science:

Public Health Surveillance
Infectious Disease Epidemiology
Data Management

Background:

The Canadian Notifiable Disease Surveillance System (CNDSS) is crucial for monitoring priority diseases.
Updates align with the Government of Canada's Open Data initiative.
Previous case definitions were published in 2009, and the website was last redesigned in 2013.

Discussion:

Case definitions for five diseases were revised: hepatitis C (acute vs. chronic), cyclosporiasis (epidemiologic link clarification), rabies (antibody detection method), Lyme disease (risk areas), and tuberculosis (NAAT inclusion).
The Notifiable Diseases Online website has undergone significant improvements since 2013.
Enhanced website features include customizable data extraction into Excel and PDF formats, and exportable large datasets.

Key Insights:

Revised case definitions provide more precise diagnostic criteria for several infectious diseases.
The interactive website now offers greater flexibility and usability for data analysis.
These updates improve the accuracy and accessibility of national disease surveillance data.

Outlook:

Case definitions will be updated as needed to reflect evolving scientific understanding.
The interactive website will continue to be enhanced based on user feedback.
Ongoing improvements aim to strengthen Canada's capacity for disease surveillance and public health response.