Table 1 presents the current list of notifiable diseases and the years in which the disease required notification and provides links to descriptions of the diseases.
|Disease||Year(s) of Notifiability|
|Acute Flaccid Paralysis||2000 -|
|Botulism||1933, 1940 -|
|Varicella (Chickenpox)||1924 to 1959, 1986 -|
|Chlamydia, Genital||1990 -|
|Clostridium difficile Associated Diarrhea||2009 -|
|Creutzfeldt-Jakob Disease (classic and new variant)||2000 -|
|Group B Streptococcal Disease of the Newborn||2000 -|
|Hantavirus Pulmonary Syndrome||2000 -|
|Hepatitis A||1927 to 1958, 1969 -|
|Hepatitis B||1969 -|
|Hepatitis C||1991 -|
|Human Immunodeficiency Virus||2000 -|
|Influenza, Laboratory-Confirmed||2000 -|
|Invasive Haemophilus influenzae Disease: types b (Hib) and non-b||1979 -|
|Invasive Group A Streptococcal Disease||2000 -|
|Invasive Meningococcal Disease||1924 -|
|Invasive Pneumococcal Disease||2000 -|
|Listeriosis||1990 - 1999, 2007 -|
|Lyme Disease||2009 -|
|Malaria||1929 to 1978, 1983 -|
|Mumps||1924 to 1959, 1986 -|
|Norovirus Infection (outbreaks only)||2007 -|
|Paralytic Shellfish Poisoning||2007 -|
|Rubella, Congenital||1979 -|
|Salmonellosis (includes paratyphoid)||1958 -|
|Severe Acute Respiratory Syndrome (SARS)||2004 -|
|Typhoid||1924 to 1952, 1969 -|
|Verotoxigenic E. coli||1990 -|
|Viral Hemorrhagic Fevers
(Crimean Congo, Ebola, Lassa, Marburg, Rift Valley)
|West Nile Virus Infection||2003 -|
Each notifiable disease link provides a brief description of the disease including the disease agent, worldwide distribution, symptoms, period of communicability, how it is transmitted, and prevention and control.
The Canadian Notifiable Disease Surveillance System (CNDSS) is a national surveillance system designed to capture information regarding Canada's nationally notifiable diseases. Notifiable disease surveillance is carried out under provincial/territorial authority. Each province and territory independently captures data regarding notifiable diseases in their respective jurisdictions and voluntarily submits data regarding nationally notifiable diseases to the CNDSS. As of October 2009, there are 60 infectious diseases under national surveillance.
Data captured in the CNDSS is dependent on the actions of a string of public health professionals. Physicians and/or laboratories report notifiable diseases to the local health authorities who determine whether the surveillance case definition is met prior to officially reporting the case to the provincial/territorial level and collecting all necessary epidemiologic data. Possible cases can be reported, but must be deleted if the case definition is not subsequently satisfied. The provinces/territories then voluntarily submit their data to the CNDSS. Thus, the quality of the data maintained in the CNDSS is a reflection of Canada's public health reporting system.
There are a small number of diseases for which data is provided by PHAC programs rather than collecting directly from the provinces or territories. Data is collected from programs rather than provinces and territories for programs that involve the collection of individual detailed case information, or in the case of laboratory confirmed influenza, when reporting techniques across the country are so varied that the program collection method is the only common form between jurisdictions. These diseases can be found in Table 3.
|Acute Flaccid Paralysis|
|Laboratory Confirmed Influenza|
|HIV and AIDS|
|West Nile Virus Infection|