In US, the most vaccine-hesitant group of all? PhDs (unherd.com)

In the first five months of 2021, the largest decrease in hesitancy was among the least educated — those with a high school education or less. Meanwhile, hesitancy held constant in the most educated group; by May, those with Ph.Ds were the most hesitant group.

So not only are the most educated people most sceptical of taking the Covid vaccine, they are also the least likely the change their minds about it. [

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