In this article, the authors use a stochastic model of COVID-19 transmission and testing to investigate the effect that vaccination of border workers has on the risk of an outbreak in an unvaccinated community.

There is limited evidence as to how COVID-19 infection fatality rates (IFR) may vary by ethnicity. The authors combine demographic and health data for ethnic groupings in Aotearoa New Zealand with international data on IFR for different age groups to estimate inequities in IFR by ethnicity.