Collins E, Galipeau Y, Arnold C, Bosveld C, Heiskanen A, Keeshan A, Nakka K, Shir-Mohammadi K, St-Denis-Bissonnette F, Tamblyn L, et al. Cohort profile: top the Spread Ottawa (SSO)a community-based prospective cohort study on antibody responses, antibody neutralisation efficiency and cellular immunity to SARS-CoV-2 infection and vaccination. BMJ Open. 2022;12(9):e062187.