Canadian health officials are currently investigating a Salmonella outbreak that has been linked to handling dog food and treats. The outbreak has resulted in 27 confirmed cases across multiple regions, with illnesses reported between mid-February and mid-August 2025.
Areas and Cases Affected
According to the Public Health Agency of Canada, laboratory-confirmed cases of Salmonella Oranienburg have been identified in Alberta (13 cases), British Columbia (12 cases), Ontario (1 case), and the Northwest Territories (1 case). The reported infections have affected individuals ranging in age from infants to 87 years old. Six people required hospitalization, though no fatalities have been reported.
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Pet Food Identified as a Likely Source
Health officials have connected the outbreak to dog food and treats, as many affected individuals reported handling these items prior to falling ill. The items include a variety of products such as kibble, dehydrated treats, and freeze-dried treats. However, investigators have yet to identify a single common supplier or brand linked to the illnesses.
"Many people who became sick reported handling dog food and treats prior to becoming ill, including kibble, and dehydrated and freeze-dried treats", stated the government outbreak notice.
Unreported Cases Likely Higher
Government researchers have highlighted that the actual number of cases is likely much higher than the 27 confirmed, as many individuals may experience mild symptoms and not seek medical testing. For every confirmed case of Salmonella, researchers estimate there could be 26 additional unreported cases.
Risks for Humans and Pets
Officials are urging caution, noting that dog food and treats can harbor Salmonella bacteria, which can infect both pets and humans. Even dogs that show no symptoms can carry the bacteria and transmit it to their owners through contact or contamination in the household environment.
The investigation remains ongoing, and officials caution that new illnesses may continue to emerge due to a reporting lag of 15 to 101 days between the onset of illness and official recognition.
This developing situation underscores the importance of proper handling and hygiene when dealing with pet food and treats to reduce the risk of infection. Further updates are expected as the investigation progresses.
