Study Procedures
INFLUENZA
A 2-centered randomized controlled trial (RCT) was conducted to evaluate the use of safety reporting via a mobile app compared to safety reporting via web-based CANVAS notifications among individuals receiving the influenza vaccine from October 6 to November 29, 2020, during the seasonal influenza vaccine campaign in Ottawa, Ontario, and Vancouver, British Columbia, Canada. Individuals were recruited at the time of receiving their influenza vaccine. Eligibility criteria included the ability to speak English or French, having an active email address and telephone number, and being immunized with the seasonal influenza vaccine.