Dr Leah Grout, Prof Nick Wilson, Dr Jennifer Summers, Dr Amanda Kvalsvig, Prof Michael Baker*
Aotearoa New Zealand (NZ’s) Covid-19 Alert Level system worked well in early 2020, but the Covid-19 landscape has changed, and the system must be updated to address the threat of the highly transmissible Delta variant and future variants. The country is using lockdowns (Auckland currently at Alert Level 4, with the rest of the country at Alert Level 3) to eliminate community transmission. As NZ plans moves down the Alert Levels in coming weeks, now is the time to upgrade Alert Level 2 to ensure it is fit for purpose. Key improvements are mask use in all indoor environments, and creating a Level 2+ that keeps the highest risk indoor environments closed while the risk of virus circulation is elevated.