There is also rate data from UK on covid delta (week 32-35 2021), breakdown by vax status & age, see Figure 2a. Cases under 40 is 1/2 vax/unvax, cases over 40 is actually slightly larger for vax than unvax. I had a sense vaccines are not perfect wrt infection, but didn't expect actual numbers to be that close.

Fortunately vaccines are very still very good at preventing severe cases (hospitaliations), see Figure 2d.

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