Report the following suspected or confirmed diseases to the Medical Officer of Health by telephone or fax as soon as possible.
Diseases marked with an asterisk (*) require immediate Public Health follow up. (Health Protection and Promotion Act, O. Reg. 135/18, O. Reg. 569)
- Acquired Immunodeficiency Syndrome (AIDS)
- * Acute Flaccid Paralysis (AFP) (under age 15)
- Amebiasis
- Anaplasmosis
- * Anthrax
- Babesiosis
- Blastomycosis
- *Botulism
- *Brucellosis
- Campylobacter enteritis
- * Carbapenamase-producing Enterobacteriaceae (CPE) (colonization or infection)
- Chancroid
- *Chickenpox (Varicella)
- Chlamydia trachomatis infections
- * Cholera
- * Clostridium difficile infection (CDI) outbreaks in public hospitals
- * Creutzfeldt-Jakob Disease, all types
- Cryptosporidiosis
- Cyclosporiasis
- *Diphtheria
-
Echinococcus multilocularis infection
- * Encephalitis, including
- Primary, viral
- Post-infectious
- Vaccine-related
- Subacute sclerosing panencephalitis
- Unspecified
- *Food poisoning, all causes
- *Gastroenteritis, outbreaks in institutions and public hospitals
- Giardiasis, except asymptomatic cases
- Gonorrhea
- *Group A Streptococcal disease, invasive
- Group B Streptococcal disease, neonatal
- *Haemophilus influenzae disease (all types), invasive
- *Hantavirus Pulmonary Syndrome
- *Hemorrhagic fevers:
- *Ebola virus disease
- *Lassa fever
- *Marburg disease
- *Other viral causes
- Hepatitis, viral
- *Hepatitis A
- Hepatitis B
- Hepatitis C
- * Influenza (novel, non-seasonal)
- *Legionellosis
- Leprosy
- *Listeriosis
- Lyme Disease
- *Measles
- *Meningitis, acute
- *Bacterial
- Viral
- Other
- *Meningococcal disease, invasive
- Mumps
- Novel Coronaviruses
- COVID-19
- * SARS
- * MERS
- * Ophthalmia neonatorum
- * Paralytic Shellfish Poisoning (PSP)
- Paratyphoid Fever
- Pertussis (Whooping Cough)
- *Plague (Yersinia pestis)
- Pneumococcal disease (Streptococcus pneumoniae), invasive
- *Poliomyelitis, acute
- Powassan Virus Infection
- * Psittacosis/Ornithosis
- *Q Fever
- *Rabies
- *Respiratory infection outbreaks in institutions and public hospitals
- * Rubella
- Rubella, congenital syndrome
- Salmonellosis
- * Shigellosis
- *Smallpox, and other Orthopoxviruses, including:
- Monkeypox
- Syphilis
- * Tetanus
- Trichinosis
- *Tuberculosis, active cases (also report positive skin tests in mm)
- *Tularemia
- Typhoid Fever
- *Verotoxin-producing E. coli infection indicator conditions, incl. Haemolytic Uraemic Syndrome (HUS)
- West Nile Virus illness
- Yersiniosis
To report diseases
Telephone: Monday – Friday, 8:30 a.m.-4:30 p.m.: 1-800-265-7293, ext. 4752
- After hours and holidays, 1-877-884-8653
Fax: 1-855-934-5463 (1-855-WDGLINE)
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