The Herald has this article on comparing the relative risks. The key take-out from Dr Watson's research is this:
Unvaccinated people are nine times more likely to seed fresh Covid-19 outbreaks in New Zealand, finds new modelling that's prompted a plea for those who haven't had their shots to think before travelling this summer.
The importance of encouraging people to get vaccinated is underlined again. The full paper is at this link: https://www.medrxiv.org/content/10.1101/2021.11.28.21266967v1.full.pdf