COVID-19 vaccination in Ontario

COVID-19 vaccination in Ontario began in December 2020, when the first doses of the Pfizer vaccine were administered. In February 2021, shipments for both the Pfizer and Moderna vaccines increased significantly. By May 2021, over 50 percent of Ontarians had received their first dose. By the beginning of 2022, over 80 percent of Ontarians had received their first dose.