As I proposed a metric for evaluating booster campaigns to @spignal and didn‘t want to be the lazy guy not actually doing the analysis, I did a very preliminary one. And there‘s a story - just not the one people seem to want to find (short thread)
@spignal Booster campaigns are time dependent on full vaccination. Accordingly, to see whether boosters are on track, it would seem appropriate to look at the time lag between full vaccination and booster.
I looked at when different countries reached the percentage of full vaccination they now have boostered. The later they did, the better the booster campaign.
The result is that Western European countries are all similar. The respective dates were all in June: 29 (France) 28 (Germany) 26 (UK) 25 (Italy) 13 (Spain). No story there. But there is a story if you include the US: the US date is April 2.
So the question is: what is going on in the US? It had the fastest vaccine campaign (though it reached a low ceiling) 
And this is its booster campaign. The bottom one.
What explains this? The strong novax movement explains the low ceiling of fully vaccinated, but what is going on with boosters? That cannot be vaccine scepticism at this low rate. What‘s going on? Anyone?
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