Covid-19 Vaccine Effectiveness Study

TARRANT has also partnered with the BC Center for Disease Control, the National Microbiology Lab, and provincial programs from Ontario and Quebec (SPSN) to determine COVID-19 vaccine effectiveness. Patients presenting with symptoms of the disease are recruited by sentinels across the provinces and tested in the laboratory for confirmed cases. Through a test-negative incident case-control design, that compares test-positive cases with those testing negative, this data is combined with their vaccination history to estimate vaccine effectiveness.