2021-01-13 from cbc.ca

Canada's national panel of vaccine experts says the second COVID-19 vaccine dose can be delayed briefly in order to quickly get first doses to more people.

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 as vaccine supplies trickle in slowly, the panel also says that delaying the second dose for up to six weeks — instead of three or four — could quickly give more people at least some protection against COVID-19.

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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