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Caution - This sign can be used to communicate to visitors when a facility is monitoring signs and symptoms of illness.
Declared - This sign can be used to communicate to visitors when an outbreak is declared.
Reviewed October 2025
The Thunder Bay District Health Unit provides information on a large number of infectious diseases. Diseases are listed from A-Z below for your convenience.
PLEASE NOTE: This page provides up to date information about active outbreaks within the city of Thunder Bay and the District communities.
An outbreak is declared in a facility when there is a higher than normal rate of respiratory or gastrointestinal symptoms among the residents. The public…
The Northern Fruit and Vegetable Program (NFVP) is serving fresh fruit and vegetables to elementary students in the District of Thunder Bay! Since 2006, the NFVP has been wildly successful with children in the northeastern region of Ontario, and as of May 2018, the program expanded to our region.…
What is RSV?
Respiratory syncytial virus (RSV) is a common virus that infects the lungs and airways (breathing passages). RSV can affect anyone of any age, but it's most common in infants and young children. Almost all children get RSV at least once before they are 2 years old. RSV is usually a…
The 2023 Opioid Use and Impacts in Thunder Bay District report provides an update to previously reported data (i.e., 2018 Opioid Use and Impacts in Thunder Bay District; also linked above) regarding the scope of opioid use, the burden of opioid-related harms, and available opioid-related services…
COPIED FROM NISHNAWBE-ASKI POLICE OFFICER SAFETY BULLETIN
The Nishnawbe Aski Police Service (NAPS) are issuing a warning regarding the distribution of illegal street drugs, specifically, Percocet Pills (Oxycodone).
A significant quantity of drugs held out to be Percocet Pills were recently…
For more information on TB and the outbreak, visit the Tuberculosis Outbreak page.
Updated: April 2018
Emergency Preparedness
expand_moreMake A Plan
Take time to consider what you will do if you or a family/household member becomes sick and needs care.
If you are responsible for dependents, including young children or elderly relatives, consider putting in place alternative care plans should you…
The TB outbreak declared on March 8, 2018, continues in the city of Thunder Bay. Individuals who are street involved, homeless or under-housed continue to be disproportionately affected by TB and HIV.
expand_moreTBDHU Response
The TBDHU Infectious Disease and Street Outreach teams continue to do…