As of Tuesday, there are four new cases of Covid-19 in managed isolation, with one being historical, Stuff reports. The cases come from the United Kingdom, the United States, and India, with three having been infected by the South African variant while the other one has the UK strain. All are in managed isolation in Auckland, bar the United States case, which is in Christchurch and has been deemed a historical case. Active cases in the country have climbed to 72.