The government is aiming to vaccinate those in the four highest risk tiers - the elderly, clinically vulnerable and frontline health and social care workers - by February 15, something that would require more than 2 million vaccinations a week. The nation can form herd immunity if 32 to 36 million people, including healthcare providers and the older population staying at nursing hospitals, get the Covid-19 jabs until then, officials said.
Almost 3 crore healthcare and frontline workers will receive the jab during the first phase of COVID-19 inoculation drive.
The extra doses will come from stores of the vaccines that were being held in reserve for booster doses, after the administration reversed its stance against releasing them.
It can take up to two weeks after a vaccine for the body's full immune response to be in place.
Canada is getting enough vaccine doses to vaccinate the vast majority of Canadians by the fall - but most of those doses won't arrive until later in the spring and summer and provinces are warning they're going to run out.
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Trudeau is also announcing the Canada-U.
Slaoui added that he is confident that one dose will likely demonstrate very high efficacy, providing grounds for Pfizer's vaccine's safety and efficacy, which will be distributed in the country.
Henry said the province also expected to see more vaccines approved for use in the coming months.
According to pharmaceutical prescriptions, the booster dose should be injected three weeks after the first in the case of Pfizer / BioNTech vaccine or four weeks after that of Moderna, in order to ensure optimal long-term immunization against the disease.
Both the Moderna and the Pfizer/BioNTech vaccines require two shots: a priming dose, followed by a booster shot. "Around 100 beneficiaries will be vaccinated at each session site on the inaugural day", PMO said.