Notifiable Diseases On-Line

National Notifiable Diseases

Communicable diseases (CDs) are made notifiable in the provinces and territories of Canada by provincial and territorial statute. The list of notifiable diseases at the federal level is agreed upon by consensus among provincial, territorial and federal health authorities. The purpose of making a specific CD reportable is to facilitate both tracking and required control efforts by public health personnel. In addition, the NND list helps to promote uniformity and synergy among the provincial and territorial efforts and conformity with international reporting requirements. The changing epidemiology of infectious diseases necessitates a review of and modification to the NND list on a periodic basis. The review consists of a priority-setting exercise and is undertaken by a federal/provincial/territorial working group. The priority-setting exercise results in some previously notifiable diseases being removed from the list and new communicable diseases added. The reader should refer to Table 1 to determine the years in which a specific communicable disease has been reportable.

Table 1 presents the year in which the notifiable disease became “notifiable”.

Table 2 presents notifiable diseases which have few or no reported cases.

Table 1: Current List of Nationally Notifiable Diseases and Year the First Positive Report was Recorded

Disease	First Positive Case (Year)
Acute Flaccid Paralysis	2000 -
AIDS	1986 -
Amoebiasis	1927 - 1999
Anthrax	2002 -
Botulism	1933, 1940 -
Brucellosis	1928 -
Campylobacteriosis	1986 -
Chancroid	1979 - 1999
Chickenpox	1924 to 1959, 1986 -
Chlamydia, Genital	1990 -
Cholera	1974 -
Creutzfeldt-Jakob Disease	2000 -
Cryptosporidiosis	2000 -
Cyclosporiasis	2000 -
Diphtheria	1924 -
Giardiasis	1983 -
Gonorrhea	1924 -
Gonococcal Ophthalmia Neonatorum	1979 - 1999
Group B Streptococcal Disease of the Newborn	2000 -
Hantavirus Pulmonary Syndrome	2000 -
Hepatitis A	1927 to 1958, 1969 -
Hepatitis B	1969 -
Hepatitis C	1991 -
Hepatitis Non-A, Non-B	1983 - 1999
Human Immonodeficiency Virus	2000 -
Influenza,Laboratory-Confirmed	2000 -
Invasive Haemophilus influenzae type b Disease	1979 -
Invasive Group A Streptococcal Disease	2000 -
Invasive Meningococcal Disease	1924 -
Invasive Pneumococcal Disease	2000 -
Legionellosis	1986 -
Leprosy	1925 -
Listeriosis (all types)	1990 - 1999
Malaria	1929 to 1978, 1983 -
Measles	1924 -
Meningitis, Pneumococcal	1979 - 1999
Meningitis, Other Bacterial	1979 - 1999
Meningitis, Viral	1952 - 1999
Mumps	1924 to 1959, 1986 -
Paratyphoid	1924 to 1952, 1969 - 1999
Pertussis	1924 -
Plague*
Poliomyelitis	1924 -
Rabies	1927 -
Rubella	1924 -
Rubella, Congenital	1979 -
Salmonellosis	1958 -
Shigellosis	1924 -
Smallpox	2002 -
Syphilis, All	1924 - 1978
Syphilis, Congenital	1992 -
Syphilis, Early Latent	1992 -
Syphilis, Early Symptomatic (Primary and Secondary)	1979 -
Syphilis, Other	1924 -
Tetanus	1957 -
Tuberculosis	1924 -
Tularemia	2002 -
Trichinosis	1929 - 1999
Typhoid	1924 to 1952, 1969 -
Verotoxigenic E. coli	1990 -
Viral Hemorrhagic Fevers (Crimean Congo, Ebola, Lassa, Margurg)	2002 -
West Nile Virus Asymptomatic Infection	2003 -
West Nile Virus Fever	2003 -
West Nile Virus Neurological Syndromes	2003 -
West Nile Virus Unclassified/Unspecified	2003 -
Yellow Fever*
* The notifiable disease database has never received a report of plague or yellow fever.

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Disease-specific technical notes

Each notifiable disease provides a brief discussion on the limitations of the data unique to the notifiable disease. The limitations have a direct bearing on the analyses and interpretation of the data; accordingly, any data manipulations should be discussed within the context of the limitations of the data. The technical notes will vary from disease to disease, and may discuss such limitations as under reporting, timeliness of reporting, disease case definitions, and passive surveillance.

List of notifiable diseases which have few or no cases reported

The interactive table, chart and mapping functions are not enabled for the following notifiable diseases because the number of reported cases has been non existent or too low over time to enable meaningful analyses. Some diseases, such as polio, diptheria and tetanus, have few reported cases because of the success of mass childhood immunization programs; others, such as congenital syphilis, are rarely reported because of the implementation of public health control measures such as routine screening of all pregnant women for syphilis.

Table 2: List of Notifiable Diseases Which Have Few or No Cases Reported

Acute Flaccid Paralysis

Botulism

Brucellosis

Chancroid

Cholera

Creutzfeldt-Jakob Disease

Diphtheria

Gonococcal Ophthalmia Neonatorum

Hantavirus Pulmonary Syndrome

Hepatitis Non-A, Non-B

Human Immunodeficiency Virus

Influenza, Laboratory-Confirmed

Leprosy

Plague*

Poliomyelitis

Rabies

Rubella, Congenital

Smallpox

Syphilis, Congenital

Tetanus

Trichinosis

Tularemia

Viral Hemorrhagic Fevers (Crimean Congo, Ebola, Lassa, Margurg)

Yellow Fever*

* The notifiable disease database has never received a report of plague or yellow fever.