New Zealand needs to be able to contact trace up to 1,000 cases of Covid-19 - in case of a large outbreak in the next two years.
That is among the recommendations in a new report into contact tracing by Dr Ayesha Verrall, who found as we went into lockdown Public Health Units were being overwhelmed by less than 100 cases a day.
Dr Ayesha Verral joins Lisa Owen to discuss the latest details