Measles is a disease caused by a virus and is also known as “red measles” or “rubeola”. Symptoms of measles include fever, coughing, runny nose and a rash. Measles is a highly infectious disease and can be easily prevented by a vaccine. For more information, see the health unit's fact sheet on measles and measles vaccine.
The following graphs show the number of measles cases in Simcoe Muskoka between 1991 and 2015, and 2000 and 2015, respectively. The two-dose measles vaccine was introduced in 1996 which lead to a significant decrease in the number of measles cases reported in Simcoe Muskoka and across Ontario. For more information on measles, please see Public Health Ontario’s Measles Infographic.
Since 2000, there have been between zero and two reported cases of measles in Simcoe Muskoka each year. In 2015, zero cases of measles was reported in Simcoe Muskoka.
The following graph shows the incidence rate of measles in Simcoe Muskoka and Ontario between 2000 and 2015. In 2015, the incidence rate for measles in Simcoe Muskoka was 0.0 cases per 100,000 population and the Ontario rate was 0.15 cases per 100,000 population.
There are many factors that influence how many cases are reported to the health unit, as explained on the Infectious Diseases page.
Provincial definitions classify cases as confirmed, probable or suspect based on clinical and/or laboratory diagnostic criteria. The provincial case definition for measles 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.