Salmonellosis is a disease caused by bacteria belonging to the family Salmonella. Symptoms of salmonellosis include headache, abdominal pain, fever, diarrhea, nausea and vomiting. It is spread by consuming contaminated food or water, or though contact with an infected animal or person. For more information, see the health unit’s fact sheet on salmonella.
Simcoe Muskoka
Ontario
Technical Notes
The following graph shows the number of salmonellosis cases in Simcoe Muskoka between 2000 and 2021. There have been between 39 and 154 cases of salmonellosis reported every year in Simcoe Muskoka since 2000. In 2021, 39 cases of salmonellosis were reported in Simcoe Muskoka.
The increase observed in 2016 was due to a local community outbreak.
Ontario
The following graph shows the incidence rate of salmonellosis in Simcoe Muskoka and Ontario between 2000 and 2021. The incidence rate in Simcoe Muskoka has increased in this period and is now comparable to the Ontario rate. In 2021, the incidence rate in Simcoe Muskoka was 6.3 cases per 100,000 population and the Ontario rate was 8.1 cases per 100,000 population. The rate in 2016 for Simcoe Muskoka was higher than the provincial rate because of a local community outbreak of Salmonella. There was a province wide outbreak of salmonellosis in 2005 caused by consumption of contaminated bean sprouts.
More detailed data for Ontario and each health unit can be found on Public Health Ontario’s interactive Reportable Disease Trends in Ontario tool.
Technical Notes
There are many factors that influence how many cases are reported to the health unit, as explained on the Infectious Diseases page. It is unclear to what extent the global COVID-19 pandemic has influenced the reporting and spread of other infectious diseases – counts and rates of disease since 2020 should be interpreted with caution.
Provincial definitions classify cases as confirmed, probable or suspect based on clinical and/or laboratory diagnostic criteria. The provincial case definition for salmonellosis changed in April 2009 to include a definition for probable cases whereas before there was no such classification. The definitions of confirmed and probable cases from 2009 onwards are comparable to confirmed cases before 2009.
Page last updated August 19, 2022