Canada has defended its decision to draw on a supply of coronavirus vaccines from a global inoculation-sharing initiative known as Covax.
Covax pools funds from wealthier countries to help buy vaccines for themselves and low-income nations.
The scheme has announced a plan to deliver more than 330 million vaccine doses in the first half of 2021.
Canada is the only member of the G7 group of rich countries listed as a Covax beneficiary at this stage.
