DAVID SEYMOUR (Leader—ACT): In light of our managed isolation system—and the Minister said it's one of the tightest, although the Delta variant is changing the parameters of the virus—I wonder what advice he's had about the effects of the Delta variant on the effectiveness of vaccination with respect to infection and transmission. Besides its effect on the usefulness of vaccination, the incubation time—in other words, the amount of time it takes for the Delta variant to incubate and become testable—what sort of advice has the Minister had on whether or not the current managed isolation and quarantine settings of having a wall of vaccination and testing three times in two weeks is adequate given the changed parameters he's just talked about?