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Reportable Disease List

Timely reporting of communicable diseases is essential for their control. If you suspect or have confirmation of the following specified "Reportable Communicable Diseases" or their "etiologic agents," (as per Ontario Reg 559/91 and amendments under the Health Protection and Promotion Act) please report them to the local Medical Officer of Health.

Report diseases listed below to:

Phone: 519-258-2146 or fax: 226-783-2132 (Monday to Friday from 8:30 a.m. to 4:30 p.m.).

After hours, weekends, and holidays phone: 519-973-4510.

Report Immediately: 

  1. Primary, viral
  1. Ebola virus disease
  2. Marburg virus disease
  3. Other viral causes
  • Hepatitis, viral
  1. Hepatitis A
  1. Bacterial

Report By Next Working Day: 

  • Acquired Immunodeficiency Syndrome (AIDS)
  • Acute flaccid paralysis (AFP)
  • Amebiasis
  • Campylobacter
  • Chancroid
  • Chickenpox (Varicella)
  • Chlamydia trachomatis infections
  • Clostridium difficile associated disease (CDAD) outbreaks in public hospitals
  • Creutzfeldt-Jakob Disease, all types
  • Encephalitis, including:
  1. Post-infectious
  2. Vaccine-related
  3. Subacute sclerosing panencephalitis
  4. Unspecific
  1. Hepatitis B
  2. Hepatitis C
  1. Viral
  2. Other