There are already immunization registries that are used across the country in every jurisdiction, including one that is now being developed in Nunavut with support from the Public Health Agency of Canada. Those are electronic databases that capture information on immunization on a per-individual basis. They are used for clinical management of people who have been immunized. They are also used for surveillance purposes.
What we do at the national level is draw from the data in those registries, working with each province and territory to assemble that data into our estimates of vaccination coverage across the country, as well as using them to monitor for vaccination safety and follow-up. We do not have one national registry, but the collection of registries is administered according to a standard approach that provinces and territories agree to. In that way we can be confident in the data that we are gathering from those registries and using it to inform our programs at the national level.
What's important is that we look for trends and unusual happenings in the population with regard to immunization and then we take action on those with manufacturers, with our regulatory colleagues, and with provinces and territories as we move forward to ensure the integrity of the overall immunization system in our country.