In contact tracing, we have traced over 32,000 contacts. We are tracing the contacts of contacts, so-called second-order contacts, after learnings from New South Wales. At one point, we had over 500 locations of interest; we're currently down to 344. This is because of the concern about fleeting transmission with the Delta variant, yet another way we have responded to changes in the evidence. We are increasing the use of the app. I'm very pleased to see more New Zealanders taking that up. And we did all of this because we were prepared. We scaled up contact tracing in Auckland. We delegated contact tracing electronically to public health units across the country.