Mr. Stewart, a recent study from a British university found that in light of the emergence of the B.1.1.7 variant, the only way for the U.K. to reach herd immunity K. would be to vaccinate almost everyone, including children, with the more effective Pfizer vaccine. They found that vaccinating the entire population with the AstraZeneca vaccine would only reduce the R0. Meanwhile, the Pfizer vaccine would require 82% of the population to be vaccinated to control the spread of the new variant.
Has the Public Health Agency of Canada conducted similar modelling for Canada?