OTTAWA—Canada’s national panel of vaccine experts says a worsening pandemic and limited supplies of COVID-19 vaccines are good enough reasons to temporarily delay giving a second dose but would prefer the planned schedule is followed whenever possible.
The two COVID-19 vaccines approved for use in Canada both require two doses, with Pfizer and BioNTech’s vaccine label requiring two doses given 21 days apart, and Moderna’s needing two doses 28 days apart.
