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Monitoring vaccine uptake, safety and effectiveness

Learn more about how B.C. will monitor vaccine uptake, safety and effectiveness.

Last updated: January 22, 2021


COVID-19 immunization will be carefully documented. B.C. will closely monitor vaccine safety, uptake and effectiveness.

Once a vaccine is approved and begins to be used, vaccine safety is continuously monitored to identify serious adverse events.  If these events happen, authorities investigate to identify whether the vaccine is directly responsible for the adverse effect. If required, a vaccine can be withdrawn from the market and not used.

Adverse events following immunization are reported to the Public Health Agency of Canada and global safety surveillance systems. 

Vaccine providers should refer to this one-page resource on reporting adverse events following immunization.


Vaccination and immunity

COVID-19 is a relatively new disease. We are still learning how our immune systems respond to it. We are also learning how long immunity lasts after getting COVID-19 or getting immunized.

The initial data for some of the leading vaccines has been encouraging. We are hopeful the vaccines will provide safe and effective protection against COVID-19. This would reduce severe illness in those who get sick.

After immunizations begin, it will still be important to wash your hands, physical distance, wear a mask, and stay home when sick. These layers of protection are still essential as vaccines roll-out.

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SOURCE: Monitoring vaccine uptake, safety and effectiveness ( )
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