Reportable Diseases (Ontario)

The following specified Reportable Communicable Diseases, (Ontario Regs 559/91 and amendments under theHealth Protection and Promotion Act) are reportable to the local Medical Officer of Health.

Acquired Immunodeficiency
  Syndrome (AIDS)
Amebiasis
*Anthrax
*Botulism
*Brucellosis
Campylobacter enteritis
Chancroid
Chickenpox (Varicella)
Chlamydia trachomatis infections
 Cholera
Clostridium difficile Outbreaks 
*Cryptosporidiosis
*Cyclosporiasis
Cytomegalovirus infection,
      congenital
*Diphtheria
*Encephalitis, including:
     - *Primary, viral
     -  Post-infectious
     -  Vaccine-related
     -  Subacute sclerosing panencephalitis
     -  Unspecified
*Food poisoning, all causes
*Gastroenteritis, institutional outbreaks
*Giardiasis, except asymptomatic cases
 Gonorrhoea
*Haemophilus influenza b disease, invasive
*Hantavirus pulmonary syndrome
*Hemorrhagic fevers, including:
     - *Ebola virus disease 
     - *Marburg virus disease 
     - *Other viral causes 
*Hepatitis, viral
     - *Hepatitis A
     -  Hepatitis B
     -  Hepatitis C
     -  Hepatitis D (Delta Hepatitis)
 Herpes, neonatal
Influenza
 Lassa Fever
*Legionellosis
 Leprosy
*Listeriosis
 Lyme Disease
 Malaria
*Measles
*Meningitis, acute
     - *Bacterial
     -  Viral
     -  Other
*Meningococcocal disease, invasive
Mumps
Ophthalmia neonatorum
Paratyphoid fever
Pertussis (Whooping cough)
*Plague 
*Pneumococcal disease, invasive
*Poliomyelitis, acute
Psittacosis/Ornithosis
*Q Fever
*Rabies
*Respiratory infection outbreaks in institutions
Rubella 
Rubella, congenital syndrome  Salmonellosis
*Severe Acute Respiratory Syndrome (SARS)
*Shigellosis
*Smallpox
*Streptococcal disease, Group A invasive 
Streptococcal disease, Group B neonatal
Syphilis
Tetanus
Transmissible spongiform encephalopathy, including:
     - Creutzfeldt-Jakob disease, all types
     - Gerstmann-Sträussler-Scheinker syndrome
     - Fatal familial insomnia
     - Kuru
Trichinosis
Tuberculosis
*Tularmemia 
Typhoid Fever
*Verotoxin-producing E.coli
     infections, including
     Haemolytic Uremic
     Syndrome (HUS-E.coli 0157:H7)
 
*West Nile Virus illness,            
     - West Nile fever
     - *West Nile neurological manifestations   
*Yellow fever 
Yersiniosis

Note: Diseases in bolded print and marked with an asterisk (*), including all respiratory infection and enteric outbreaks in institutions, should be reported immediately to the Medical Officer of Health by telephone. Other diseases are to be reported by the next working day by fax or mail.

Source: Health Protection and Promotion Act – Ontario Regulation 559/91. Specification of Reportable Diseases. Available at: http://www.canlii.org/on/laws/regu/1991r.559/20070117/whole.html (September 2008)