Mumps outbreak in Toronto

Toronto Public Health is currently investigating a mumps outbreak in the city. As of noon on March 9, 2017, there are 31 confirmed cases of mumps in Toronto. Most of the cases are among 18-35 year old individuals. Two doses of mumps vaccine (MMR, MMRV) are recommended for all individuals born in 1970 or later. Children receive one dose after their first birthday (MMR) and a second dose at 4 to 6 years of age as part of Ontario's Publicly Funded Immunization Schedule. 

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Individuals born between 1970 and 1992 may have received only one dose as a child. If an adult is unsure about their vaccinations or has only received one dose of mumps-containing vaccine, a booster dose is recommended. A booster can be scheduled with your family doctor or our nurse. Click here to find out more about mumps from Toronto Public Health.