Deputy Lucas would be better placed to speak about Health Canada advice.
Dany was accurate in saying that we do not currently know of plans for AstraZeneca deliveries on a specific date, which was your question, but we do in fact have AstraZeneca forthcoming and we have several sources of supply in that regard. I myself had a first dose of AstraZeneca, and I have every comfort that I'll get my second dose in due course.
There are studies internationally looking at mixing doses. It seems like that's an area of science that might be promising. Dr. Tam is a far better person than I am to speak to this mix-and-match that is being investigated in Europe.