Apart from that thing in New Zealand, they're a huge land where most houses are far from each other - this is just what I've read elsewhere but could be a factor how they beaten the virus through social distancing.
As an update for Israel, the latest that I've read is that they're around 96% already and will literally going back to the normal.
Then what about Taiwan, which is one of the most densely populated countries in the world? Till date, they have reported a total of 1,073 cases and 11 deaths from CoVID 19. And regarding Israel, they were lucky that they had a political system which cares for the well being of the citizens, rather than fighting among themselves and spreading false rumors about vaccines. The opposition parties fully supported the vaccination campaign there and by now more than half of the population is fully vaccinated. And the results are out there for everyone to see. Now compare this to the case in Brazil, where the president Jair Bolsonaro claimed that vaccines can make humans turn into crocodiles.