Study registration: *
Publication Nasreen S, medRxiv, 2021
Dates: 2020-12-14 to 2021-06-13
Funding: Public/non profit (Canadian Immunization Research Network (CIRN) through a grant from the Public Health Agency of Canada and the Canadian Institutes of Health Research (CNF 151944). Public Health Agency of Canada, through the Vaccine Surveillance Reference group and the COVID-19 Immunity Task Force. ICES, which is funded by an annual grant from the Ontario Ministry of Health (MOH).)
Conflict of interest: Yes (KW is CEO of CANImmunize and serves on the data safety board for the Medicago COVID-19 vaccine trial.)