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.
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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)

