Canadian health officials are investigating an ongoing Salmonella outbreak that has sickened 27 people across Canada who reported handling dog food and treats before becoming ill.
The Public Health Agency of Canada confirmed laboratory cases of Salmonella Oranienburg in Alberta (13), British Columbia (12), Ontario (1), and the Northwest Territories (1). Illnesses occurred between mid-February and mid-August 2025, affecting people ranging from infants to 87 years old. Six people required hospitalization, with no reported deaths.
"Many people who became sick reported handling dog food and treats prior to becoming ill, including kibble, and dehydrated and freeze-dried treats," according to the government outbreak notice. However, investigators have not identified a single common supplier of dog food or treats.
The actual number of affected individuals likely exceeds confirmed cases. Government researchers estimate that for each reported Salmonella case, 26 additional unreported cases occur because many people experience mild symptoms and don't seek medical testing.
Health officials warn that dog food and treats can harbor Salmonella bacteria that infects both pets and humans. Even asymptomatic dogs can transmit the pathogen to people through contact with the animals or their environment.
The investigation remains active, with officials noting that recent illnesses may continue emerging due to the 15-101 day reporting period between onset and official notification.
