COMMENTARY: The U.S. anti-vax movement is contaminating Canada - National | Globalnews.ca. (n.d.). Global News. Retrieved 10 October 2021, from https://globalnews.ca/news/8187962/the-u-s-anti-vax-movement-is-contaminating-canada/

Masters, N. B., Eisenberg, M. C., Delamater, P. L., Kay, M., Boulton, M. L., & Zelner, J. (2020). Fine-scale spatial clustering of measles nonvaccination that increases outbreak potential is obscured by aggregated reporting data. Proceedings of the National Academy of Sciences, 117(45), 28506–28514.