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Vaccine Coverage for Diseases Preventable by Routine Childhood Immunization

As explained on the Vaccine Coverage page, the health unit does not have accurate immunization information on all school children. The most accurate data for calculating vaccine coverage comes from the schools in which suspension is enforced for incomplete records. Figure 1 shows the percentage of Simcoe Muskoka children ages 7 to 17 years in suspension schools who were vaccinated against childhood diseases in the 2009-10 school year. You can see that the coverage for these diseases is between 92% and 95%. Exemptions may be for rare medical reasons identified by a physician or a personal decision notarized by a Commissioner of Oaths. The sum of the coverage plus the exemption percentages may not equal 100% because there is a small percentage of students in suspension schools for which the health unit does not have information. For the number of vaccine preventable diseases in Simcoe Muskoka, see the HealthSTATS page on vaccine preventable diseases.

Figure 1:

Vaccine Coverage for Diseases Prevented by Routine Childhood Immunization among 7-17 Year Old Students, Simcoe Muskoka, 2009-10

Source:  SMDHU School Suspension Immunization Records

In Simcoe Muskoka, exemptions have remained stable over the past 10 years at 2-3% of all children. Unvaccinated children are at risk of getting serious diseases so parents seeking information about exemptions should access reliable, evidence based sources such as:

Simcoe Muskoka District Health Unit website on immunization at

Ontario Ministry of Health and Long Term Care at

Public Health Agency of Canada at

Canadian Pediatric Society at For in depth information, look for their book “Your Child’s Best Shot” at your local library.

Canadian Coalition for Immunization Awareness and Promotion (CCIAP) at