coronavirus vaccines and growing concerns around the spread of more transmissible variants, some Canadian provinces are taking a rationing approach for their rollout by delaying the second dose and putting more needles in arms more quickly with a first shot.Last week, New Brunswick announced that for low-risk individuals there would be a longer delay between the first and second doses — beyond the recommended time frame for the Pfizer-BioNTech and Moderna vaccines.
Delaying second dose of coronavirus vaccines is ‘risky gamble,’ experts say In mid-January, Quebec announced that it was pushing the time between the two doses to a maximum of 90 days in an attempt to vaccinate more seniors and health-care workers faster with a first injection..