I'll respond initially and then turn to Stephen Bent from the Public Health Agency.
As I noted, the government is very focused on working with provinces, territories and other partners on significantly improving the sharing of health data across the country. As I noted, that will be discussed with the Prime Minister and premiers tomorrow.
Extensive work has been done to address a number of the barriers, as I noted in a previous discussion. This includes, as we've been working with provinces and territories, obtaining disaggregated data, which is specific to your question.
I'll turn to Stephen Bent on the surveillance system.