@article{au2022vaccine,
title={Effectiveness of heterologous and homologous covid-19 vaccine regimens: living systematic review with network meta-analysis},
author={Au, Wing Ying and Cheung, Peter Pak-Hang},
url={https://www.bmj.com/content/377/bmj-2022-069989},
urldate={2025-04-08},
DOI={10.1136/bmj-2022-069989},
ISSN={1756-1833},
journal={BMJ},
publisher={BMJ},
year={2022},
month={05},
day={31},
pages={e069989},
annote={Quote: "An mRNA booster is recommended to supplement any primary vaccine course. Heterologous and homologous three dose regimens work comparably well in preventing covid-19 infections, even against different variants. The effectiveness of three dose vaccine regimens against covid-19 related death remains uncertain."},
}