Nature Communications (Oct 2022)
Tracing the international arrivals of SARS-CoV-2 Omicron variants after Aotearoa New Zealand reopened its border
Abstract
In March 2022, Aotearoa New Zealand re-opened its border allowing quarantine-free travel for many travellers. Here, the authors describe circulating Omicron sub-variants before and after the reopening of the border and show that the rate of viral introductions grew roughly linearly with the increase in daily international travel.