The Associated Press said that while Pfizer's announcement means the company is on track to file an application for emergency use authorization later this month, it does not mean a vaccine is "imminent" and more studies are needed. Pfizer's vaccine requires two shots, which need to be taken 28 days apart. Kate Bingham, Chair of the UK Vaccines Task force, previously told ITV News the UK government had ordered 30 million doses of this particular vaccine.
The drug company Pfizer has announced its coronavirus vaccine has 90 per cent efficacy against COVID-19. "The United States and some other regulators are following that guideline â€" which means there must be at least twice as many infections among volunteers who received a placebo as among those in the vaccine group.
The vaccine is undergoing late-stage tests in Brazil involving 3,100 volunteers in Sao Paulo and Bahia states, and would be imported from Pfizer's factories in the United States and Europe, the spokesman said , giving no further details.
The province also reported 159 new COVID-19 cases related to schools, including at least 103 among students. Mayor John Tory said yesterday that Toronto would impose "an enhanced suite of measures" to curb the spread of the virus as the city transitions to the province's new colour-coded system for pandemic rules.
Earlier this fall, separate studies of vaccine candidates made by AstraZeneca and Johnson & Johnson were temporarily halted after some participants experienced health problems, delaying the research until safety investigations allowed both to resume.
With Saturday's new cases and deaths taken into account, Alberta has seen an increase of 1,646 new cases and 11 new deaths since Friday. Here's the regional breakdown of active cases reported on Friday. On Friday, these restrictions were expanded beyond Edmonton and Calgary to several other municipalities around the province. In September, Hinshaw announced the province was looking into less-invasive methods for detecting COVID-19 infections.