Many low-paid US workers can't afford to miss work even one day to get vaccinated.

How about offering them three days' pay for each injection? That will cover one day to get the shot, and two for side effects. If they don't have bad side effects, this will be a nice bonus.

Meanwhile, I think that the proposed vaccine mandates for federal workers, military personnel, medical personnel and the work force of some businesses will help. They are a small fraction of the population, but in the delusional states they will help break through the anti-vax pressure.