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Diseases of Public Health Significance List

Disease of Public Health Significance Reporting Form (pdf)

SMDHU Reporting Phone Number:
705-721-7520 or 1-877-721-7520
ext 8809

After Hours: 1-888-225-7851

SMDHU Reporting Fax Number:

Disease Specific Guidelines

Surveillance Reports

Other Resources



Webinar: Lyme disease in Simcoe Muskoka: An update for clinicians (presented on May 19, 2021)


Effective September 20, 2021, The National Microbiology Laboratory (NML) will not accept blacklegged ticks for bacterial testing of Borrelia burgdorferi, as part of the passive tick surveillance program. Passive tick surveillance will be supported by citizen science initiatives, such as, which utilizes digital image-based identification. Health care providers can submit a specimen for tick species identification through either, for quick and accurate tick species identification  or the Public Health Ontario Laboratory. To reduce duplication of services, only submit the tick once to one authority. The Public Health Ontario Laboratory will not forward blacklegged ticks to the NML for laboratory testing. Laboratory testing of the specimen should not be used to diagnose Lyme disease in humans. 

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