Annual Report on Vaccine Safety in Ontario, 2016


Public health unit surveillance of adverse events following immunization (AEFIs) is essential to monitor and communicate about vaccine safety. Key messages of the provincial report include:

  • There continues to be a low rate of AEFI reporting in Ontario and no unexpected safety issues were identified in 2016.
  • Most reported events were mild (ie. pain, redness or swelling at the injection site) and resolved completely; serious adverse events were very rare.
  • AEFI reports were received from physicians, nurses, pharmacists, parents and those being immunized.
  • Ongoing surveillance is needed to monitor vaccine safety, understand geographic variations and under-reporting within the surveillance system.

Vaccine Safety Surveillance

This year to complement the annual report, an interactive tool was developed at Public Health Ontario to further explore vaccine safety surveillance data.

To use the tool visit Public Health Ontario — Vaccine Safety Surveillance

Clicking the tabs will allow users to view selected AEFI data by trends over time, age and sex, public health unit, type of vaccine and type of adverse event.


About Author

Registered Nurse --- Vaccine Preventable Diseases

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