Toronto: Canada is shifting its vaccination campaign to target frontline workers, moving away from a largely age-based rollout as the country tries to get a handle on the raging third wave of the pandemic.Canada's approach thus far has left unvaccinated many so-called "essential workers," like daycare providers, bus drivers and meatpackers, all of whom are among those at higher risk of COVID-19 transmission.
Provinces are now trying to adjust their strategy to tackle the surge driven by new variants.Targeting frontline workers and addressing occupation risk is vital if Canada wants to get its third wave under control, says Simon Fraser University mathematician and epidemiologist Caroline Colijn, who has modelled Canadian immunization.