Mumps is a disease caused by a virus with the same name. Symptoms of mumps include a fever, headache, muscle pain and swollen and painful salivary glands. Mumps can be spread through coughing or contact with an infected person’s saliva. Mumps can be prevented by a vaccine. For more information, see the health unit's fact sheets on mumps and mumps vaccine.
Simcoe Muskoka
Ontario
Technical Notes
Simcoe Muskoka
The following graph shows the number of mumps cases in Simcoe Muskoka between 2000 and 2021. There have been between zero and eleven cases of mumps in Simcoe Muskoka every year since 2000. In 2021, no cases of mumps were reported in Simcoe Muskoka.
The increase observed in 2019 was due to a local community outbreak.
Ontario
The following graph shows the incidence rate of mumps in Simcoe Muskoka and Ontario between 2000 and 2021. In 2021, the incidence rate for mumps in Simcoe Muskoka was zero cases per 100,000 population and the Ontario rate was 0.04 cases per 100,000 population. The increase in provincial incidence in 2008 was caused by an outbreak of mumps in southwestern Ontario. The provincial increase observed in 2017 was due, in part, to an outbreak of mumps in Toronto, mainly affecting those aged 18-35 years - many of whom were not up-to-date with their MMR vaccination.
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 mumps 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 onward are comparable to confirmed cases before 2009.
Page last updated August 19, 2022