Every week the number of 'wait and see' people is dropping dramatically. I Jan, only 46% of Americans were willing to be vaccinated, that's increased to 70% -- enough to reach herd immunity. The 'wall' per se is a supply issue, their system is fully ramped and now delivering doses as they are shipped with little distribution backlogs/snafus.
About 22% of Americans say 'NO WAY', and half of those would go if DT assured them it was safe to do so.
We can't catch them.
But we ARE catching them: Coronavirus (COVID-19) Vaccinations - Statistics and Research (Add Canada, uncheck random countries to unclutter the graph)
On "at least one dose" basis, we are 10.33% behind today. Two weeks ago, we were 15.22% behind. By the numbers in this measurement, we catch up to the USA at the end of May. (I think it will be in the third week of May.)
YES, they have more people fully vaccinated with both doses, but the UK's experience has been that ~50% of the population vaccinated with the first dose is enough to drop the case numbers to a low level.
On a "doses administered per 100 people", they are at 73.43 now, 68.37 a week ago (average 2.4 million doses per day). They were at 62.61 the week before that ... their vaccination rate is slowing down. There are more and more reports of vaccine appointments going unfilled.
We are at 36.63 now, 31.91 a week ago, 26.44 the week before that. We know that this is supply-constrained and this past week involved many pharmacies in Ontario running out of their supply of AstraZeneca. Theoretically (haven't heard) a shipment of more than 2 million Pfizer doses landed in Canada today.
This country is not without problem areas. Peel Region has been a problem area. Looks like the next one will be Alberta.