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National Notifiable DiseasesCommunicable 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-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
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