With more than 70 million doses of COVID-19 vaccine required for everyone in the country, health officials are facing a logistical challenge of colossal proportions. Adding to the complexity is the fact that the vaccines from Moderna, Pfizer-BioNTech and Oxford-AstraZeneca require two doses administered several weeks apart. A fourth vaccine, manufactured by Johnson & Johnson, was approved in early March and provides the logistical advantage of requiring only one dose to be effective. Canada has signed purchase agreements with several companies manufacturing their own vaccines, including Pfizer-BioNTech, Moderna, AstraZeneca, Johnson & Johnson, Medicago, Sanofi-GlaxoSmithKline, and Novavax, in an effort to secure enough doses for Canada’s population. Loading... Loading... Loading... Loading... Loading... Loading...Kenyon Wallace is a Toronto-based investigative reporter for the Star.

Source: thestar March 09, 2021 10:01 UTC