Diphtheria is a serious infection of the nose and throat caused by the Corynebacterium diphtheriae bacterium, although cases in Canada are rare due to immunization. The majority of diphtheria labs received are non-toxigenic, and therefore not reportable. Toxigenic diphtheria cases and carriers are reportable through PARIS and requires review with an MHO. 

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Communicable Disease Control Manual


Follow Up Required

Report to: Office of the Chief Medical Health Officer



Includes clinical or practice updates/changes regarding the disease for the past six months. These updates may not have been noted in the SOPs or guidelines. Any updates older than six months will be archived on this page.