Skowronski DM, Setayeshgar S, Zou M, Prystajecky N, et al. Comparative single-dose mRNA and ChAdOx1 vaccine effectiveness against
SARS-CoV-2, including variants of concern: test-negative design, British
Columbia, Canada. J Infect Dis 2022 Jan 27. pii: 6515934. doi: 10.1093.
PMID: 35084500