Rt Hon JACINDA ARDERN: Well, firstly, I would say to the member that for the most part, those policies where they're being implemented, of course, tend to use rapid antigen testing. We have already taken the approach that where you are a critical worker, yes, we will use rapid antigen testing as a way to ensure that critical workforce supply chains and healthcare are maintained. But that is not a fail-safe approach. We only need to look at this House just yesterday with a false positive. Equally, you can have false negatives at a rate as high as 20 percent of tests. 