Reportable communicable diseases
Requirements and communicable diseases that must be reported to Peel Public Health.
In accordance with Ontario Regulations 135/18 and amendments under the Health Protection and Promotion Act, certain diseases of public health significance must be reported to the local Medical Officer of Health.
Practitioners have a duty to report these diseases as outlined by the Health Protection and Promotion Act.
To report a disease, call Peel Public Health at 905-799-7700, Caledon 905-584-2216 or send lab results by fax to 289-801-0257.
Available printable files:
Reportable diseases
These diseases must be reported. Diseases in bold should be reported immediately to the Medical Officer of Health. Other diseases are to be reported by the next working day.
- Acquired Immunodeficiency Syndrome (AIDS): Human Immunodeficiency Virus (HIV) infection is reportable to the Medical Officer of Health since it’s the agent responsible for AIDS.
- Acute Flaccid Paralysis
- Amebiasis
- Anaplasmosis
- Anthrax
- Babesiosis
- Blastomycosis
- Botulism
- Brucellosis
- Campylobacter enteritis
- Carbapenemase-producing Enterobacteriaceae (CPE), infection or colonization
- Chancroid
- Chickenpox (Varicella)
- Chlamydia trachomatis infections
- Cholera
- Clostridium difficile infection (CDI) outbreaks in public hospitals
- Coronavirus disease 2019 (COVID-19)
- Coronavirus, novel, including Severe Acute Respiratory Syndrome (SARS), Middle East Respiratory Syndrome (MERS)
- Creutzfeldt-Jakob Disease, all types
- Cryptosporidiosis
- Cyclosporiasis
- Diphtheria
- Echinococcus multilocularis infection
- E. coli (see Verotoxin producing E. coli)
- 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
- Gonorrhoea
- Group A Streptococcal disease, invasive
- Group B Streptococcal disease, neonatal
- Haemophilus influenzae disease, all types, invasive
- Hantavirus pulmonary syndrome
- Hemorrhagic fevers, including Ebola virus disease, Marburg virus disease, Lassa fever, Other viral causes
- Hepatitis A, viral
- Hepatitis B, viral
- Hepatitis C, viral
- Influenza
- Legionellosis
- Leprosy
- Listeriosis
- Lyme Disease
- Measles
- Meningitis, acute, including: Bacterial, Viral, Other
- Meningococcal disease, invasive
- Mumps
- Ophthalmia neonatorum
- Paralytic Shellfish Poisoning
- Paratyphoid Fever
- Pertussis (Whooping Cough)
- Plague
- Pneumococcal disease, invasive
- Poliomyelitis, acute
- Powassan virus
- 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 (Latent tuberculosis infection (LTBI) is also reportable to the Medical Officer of Health)
- Tularemia
- Typhoid Fever
- Verotoxin-producing E. coli infection, including Haemolytic Uraemic Syndrome (HUS)
- West Nile Virus Illness
- Yersiniosis