As new details emerge about the circumstances that put Auckland back into lockdown - including that the new cases had contact with an infected family during the last one, how difficult is it going to be to avoid a wider outbreak?. Kathryn talks to contact tracing expert Professor Philip Hill. He is the McAuley Professor of International Health at the University of Otago.
It's back to the testing queue for many in Auckland, with the city under alert level 3. Photo: AFP
