"When the time comes to receive a second dose, everyone who received a first dose of AstraZeneca will receive either an AstraZeneca or mRNA vaccine for their second dose," Williams said. Williams and Huyer said they were considering options for what to do with an expected supply of more than 250,000 AstraZeneca doses still to arrive in the province. On Tuesday, Medicago, which is developing the product in combination with GlaxoSmithKline (GSK), reported positive early clinical trial data on its plant-derived COVID-19 vaccine. A spokesperson for Medicago told CBC News they expect to analyze and publish the data in early summer, then make a submission for regulatory approval from Health Canada. Pharmaceutical companies Sanofi and GSK co-developed a COVID-19 vaccine product but announced a "delay" last year after it failed to produce sufficient results in clinical trials.

Source: CBC News May 21, 2021 19:41 UTC