Hon CHRIS HIPKINS: Everybody in groups 1 and 2 has had a very extensive opportunity to receive the vaccine. Therefore, if they have not received a vaccine, it will not be because they have not been offered one or had the opportunity to get one; it will be because they have not taken up that opportunity to get the vaccine. In terms of why there are people in group 4 who have received the vaccine, some of the district health boards, as has been well-canvased, particularly when they're dealing with smaller and more isolated communities, have taken the approach of vaccinating the entirety of the community at the same time, rather than, for example, going to a small town to do their group 3 population, and then going back to do their group 4 population later on—they've made the decision to do them all at once. There are also people in group 4 who were the walk-in appointments or the off-chance appointments, which DHBs have now stopped doing. In some cases they were being done that way because it was an issue of managing their inventory—they didn't want vaccine doses to expire. Now that the shelf life of vaccine doses has been extended at regular freezing temperature from five days to basically a month, the rationale for that is no longer there, and so DHBs have stopped doing those.