COVID-19 vaccine dose can be delayed briefly in a bid to get more people a first dose faster.The National Advisory Committee on Immunization says every effort should be made to follow the 21-day and 28-day dosing schedules recommended for the two vaccines approved in Canada to date.But as the pandemic heats up and vaccine supplies are slow to trickle in, they say delaying the second dose up to six weeks, instead of three or four, could more quickly get at least some protection against COVID-19 to more people.
Canada secures 20M more Pfizer doses as vaccine makers monitor 2nd dose controversy Canada is getting enough vaccine doses to vaccinate the vast majority of Canadians by the fall but the bulk of that won’t happen until later in the.