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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,…
UPDATES:
Spring 2025 campaign has launched as of April 2025
INFLUENZA VACCINES – Please visit the dedicated health care provider Influenza web page for more information.
RSV VACCINES - Please see the dedicated health care provider RSV web page for more information.
2024-2025…
COVID-19 Vaccines
Evidence shows that mRNA COVID-19 vaccines are safe for people who are trying to get pregnant, are pregnant or are breastfeeding/chestfeeding. COVID-19 vaccines are recommended, at any stage in pregnancy (including first trimester), as COVID-19 infection during pregnancy can be…
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Date
Contents
September 23, 2025
Updated Fall Respiratory Vaccine Guidance
Resource for Vaccine Conversations with Patients Planning a Pregnancy
Local Event: Seasons of Regeneration in Liver Wellness
New Resources for HPV,…
Reporting Obligations
Suspected cases of viral encephalitis 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…
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.…
Quick links:
Grade 7 and 8 Students - School-based Clinics
High School Students - School-based clinics
Suspensions under the Immunization of School Pupils Act (ISPA) and Exemptions
Students entering school (Junior Kindergarten, new to school in Ontario, moved from a…
Reporting Obligations
Individuals with suspect or confirmed cases must be reported to the Thunder Bay District Health Unit by the next working day:
Fax: (807) 625-4822
Phone: 625-8318 or toll-free at 1-888-294—6630, ext. 8318
Positive tuberculosis skin tests and positive IGRA serology (LTBI…
REPORT IMMEDIATELY
Report suspect or confirmed cases immediately by phone to Thunder Bay District Health Unit (TBDHU).
Do not wait for laboratory confirmation.
Call (807) 625-8318 or toll-free 1-888-294-6630, ext. 8318 (Monday-Friday, 8:30am to 4:30pm).
After hours and on weekends…
UPDATES:
The information below has been updated for 2025-2026.
Products: Switch from quadrivalent inactivated vaccines (QIV) to trivalent inactivatedvaccines (TIV) for influenza vaccines.
COVID-19 VACCINES – For more information, please visit the dedicated health care provider COVID-19…
Suspected cases must be reported immediately by phone to the Thunder Bay District Health Unit 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.
NEWS
September 2024 Update…
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: 625-8318 or toll-free at 1-888-294—6630, ext. 8318
Mail: 999 Balmoral Street, Thunder Bay, ON…
Reporting Obligations
Suspected cases of BACTERIAL MENINGITIS 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…
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: 625-8318 or toll-free at 1-888-294—6630, ext. 8318
Mail: 999 Balmoral Street, Thunder Bay,…
Reporting Obligations
Suspected cases must be reported immediately by phone to the Thunder Bay District Health Unit 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-…