Interesting. Let's see how this statistical trick works. If you look at the chart of covid deaths in Tennessee, you'll notice that almost all the dying happened before March 16 2021. At that time, only 10% of the population was fully vaccinated. (Today, 38% of the population is vaccinated.)

In other words, most of the vaccinations happened only after people stopped dying of covid (or whatever).

(I've googled "tennessee covid deaths chart" to view the charts.)