You've also mentioned mixing vaccines and some study that is going to be done on that. I know that many constituents in my riding in Alberta have had the AstraZeneca vaccine for their first dose, but now we have no idea when more deliveries of AstraZeneca are going to arrive in Canada.
I'm wondering what the timeline will be for any studies on the ability to mix vaccines. Or are many of these Canadians who have the AstraZeneca first dose having to now look at two doses of another vaccine?