Covid 19 coronavirus: Where are NZ's most vulnerable places? 31 Mar, 2021 04:00 PM 5 minutes to read Just the facts - A closer look at the first four vaccines to be rolled out in New Zealand. How they work, why we need them and who developed them. Video / NZ Herald Just the facts - A closer look at the first four vaccines to be rolled out in New Zealand. How they work, why we need them and who developed them. Video / NZ Herald New Zealand's vulnerability to Covid-19 has been laid out in maps showing major cities - but also remote communities - among the most threatened spots.