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Measles is among the most contagious diseases and can lead to severe complications, including pneumonia, brain swelling, premature birth and death.
Vaccination is the best way to protect yourself and your loved ones from measles, and to limit spread of measles in our community.
The measles,…
More information on the 2025/2026 flu shot season will be posted here when it is available.
For more information about Ontario's campaigns:
FLU - To learn more, visit Ontario.ca/flu
COVID-19 - To learn more, visit Ontario.ca/COVID-19
Updates
Guidance for 2025/2026 respiratory illness season will be updated in the fall and will be available on these dedicated pages:
Influenza
COVID-19
RSV
In this section, health care providers can access important information about public health as it pertains to their…
Reporting Obligations
Suspected cases must be reported immediately by phone to TBDHU at 625-5930 or toll-free 1-888-294-6630, ext. 5930 (Monday-Friday, 8:30am to 4:30pm). After hours and on weekends/holidays call Thunder Bay Answering Service at (807) 624-1280.
Epidemiology
Aetiologic Agent:…
Oral health (dental health) involves the health of your mouth. This includes your teeth, gums, jaw bone, palate (roof of the mouth), tongue, lips and the inside of your cheeks. It deals with “More Than Just Cavities” (PDF).
Many people don’t realize that good oral health is important for…
Reporting Obligations
Suspected outbreaks must be reported immediately by phone to TBDHU at 625-8318 or toll-free 1-888-294-6630, ext. 8318 (Monday-Friday, 8:30am to 4:30pm). After hours and on weekends/holidays call Thunder Bay Answering Service at (807) 624-1280.
Use the following line…
Special Event Notification Required
- Visit TBDHU.com/specialevents where you will find all of the information required if you or your business is providing any body art or salon services at a special event like a festival or fair where these services will be available to the general public.
-…
Reporting Obligations
Suspected cases, including Ebola virus disease, Marburg virus disease, Lassa fever, and other viral causes, must be reported immediately by phone to the Thunder Bay District Health Unit at 625-8318 or toll-free 1-888-294-6630, ext. 8318 (Monday-Friday, 8:30am…
Reporting Obligations
Suspected cases must be reported immediately by phone to the Thunder Bay District Health Unit at 625-8318 or toll-free 1-888-294-6630, ext. 8318 (Monday-Friday, 8:30am to 4:30pm). After hours and on weekends/holidays call Thunder Bay Answering Service at (807) 624-1280.…
Reporting Obligations
Laboratory confirmed cases must be reported to the Thunder Bay District Health Unit by fax, phone or mail.
Fax: (807) 625-4822
Phone: 625-8318 or toll-free at 1-888-294-6630, ext. 8318
Mail: 999 Balmoral Street, Thunder Bay, ON P7B 6E7
Annual Universal…
Reporting Obligations
Suspected outbreaks must be reported immediately by phone to the Thunder Bay District Health Unit at 625-8318 or toll-free 1-888-294-6630, ext. 8318 (Monday-Friday, 8:30am to 4:30pm). After hours and on weekends/holidays call Thunder Bay Answering Service at (807) 624-1280.…
Please see Monkeypox and Other Orthopoxviruses for updated information on Monkeypox
Reporting Obligations
Suspected cases must be reported immediately by phone to the Thunder Bay District Health Unit at 625-8318 or toll-free 1-888-294-6630, ext. 8318 (Monday-Friday, 8:30am to 4:30pm…
Congenital syphilis case(s) have recently been identified in the TBDHU area. At a national level, record-high numbers of congenital syphilis cases (96 cases) were reported in 2021, representing a significant increase over historical norms of 10 or less cases per year1. Local syphilis rates are…
Reporting Obligations
Suspected cases must be reported immediately by phone to the Thunder Bay District Health Unit at 625-8318 or toll-free 1-888-294-6630, ext. 8318 (Monday-Friday, 8:30am to 4:30pm). After hours and on weekends/holidays call Thunder Bay Answering Service at (807) 624-1280.…
Reporting Obligations
Individuals with suspect or confirmed cases must be reported to the Thunder Bay District Health Unit by the next working day by fax, phone or mail.
Fax: (807) 625-4822
Phone: 625-5930 or toll-free at 1-888-294-6630, ext. 5930
Mail: 999 Balmoral Street, Thunder Bay, ON…