Now that those have been secured, can the Minister tell the House anything about the way in which the roll-out is going to occur for those vaccines and, in particular, looking at regimes similar to where they have in Australia, where people kind of pre-qualify and are told which group they're in and are told, roughly, when that's going to happen, and have the kind of assurance that comes from knowing when it is that you're going to be receiving the vaccine? 