From the Global News article:

…“Because vaccines are unfortunately so scarce right now, we have to be thoughtful… That means bringing the vaccines to the individuals, the communities, the locations, the settings where we have the most transmission, where we have the most risk, and therefore where we can have also the most benefit,” says Dr. Darrell Tan.

“We need to acknowledge that risk is not equally distributed in our population because of a whole host of structural, systemic inequities. And we need to respond to that.”