Diseases of Public Health Significance (Reportable Diseases)

As of May 1st, 2018, “Reportable Diseases" are now referred to as "Diseases of Public Health Significance". Malaria and yellow fever are no longer reportable.

Download the full Diseases of Public Health Significance list.

  • updated February 2026 to include HIV

Health care providers who suspect or have confirmation of the “Diseases of Public Health Significance”, or their “etiologic agents”, as per Ontario Reg 135/18 and amendments under the Health Protection and Promotion Act, must report them to the local Medical Officer of Health.

 

Report Immediately

The following diseases must be reported immediately by phone:

  • Monday-Friday, 8:30am to 4:30pm: Call the Thunder Bay District Health Unit at 807-625-8318 or toll-free 1-888-294-6630, ext. 8318.
  • After hours and weekends/holidays: Call Thunder Bay Answering Service at 807-624-1280. 

In the case of an animal bite, also complete and immediately fax the Animal Bite/Exposures Form to 807-625-4822.

 

 

Report By Next Working Day

The following diseases must be reported by the next working day by fax, phone or email.

 

 

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