Notifiable diseases on-line - List of nationally notifiable diseases

Notifiable Diseases Online presents information based on data from the Canadian Notifiable Disease Surveillance System (CNDSS). Nationally notifiable diseases are infectious diseases that have been identified by the federal government and provinces and territories as priorities for monitoring and control efforts. Through the CNDSS, provinces and territories voluntarily submit annual notifiable disease data, which are used to produce national disease counts and rates. The Notifiable disease charts can be used to explore trends in annual national counts and rates of reported cases of nationally notifiable diseases since 1924, where available.

The list of nationally notifiable diseases has been revised periodically. A disease that has been taken off the list can be reintroduced later if its status in Canada changes. Though in early years the decision to place a disease on the list relied on expert opinion, since 1987 these decisions have been based on federal/provincial/territorial consensus using set criteria. The List of notifiable diseases provides the disease names and years in which they were considered notifiable.