Let's explore what happens if 98% of vax recipients (or more) are actually getting injected with only saline.
They get compliance, because the death/injury rate is artificially very low (less resistance).
They get large-scale test results, because they know who actually got the vax.
(This is the big one) --> In order to maximize societal and business disruption, the death/injury rate should be at a certain 'sweet spot' (just high enough to warn those that are awake, but low enough to keep the brainwashed masses asleep). If they add/reduce saline to artificially stay at that 'sweet spot', they create two (somewhat) equal camps -- continuously at war with one another.
Note: Once they get compliance, the booster program lets them 'finish off' the plan at any time they choose - (just stop giving out saline).
They may (or may not) be doing this, but it makes for a 'perfect evil plan'.
My theory is that they spread the hot vials far and wide across the world, not targeting any particular demographic. The nurse's fate was likely chance, just like the Delta pilot. What did they do? Stifle any follow up reporting on the incidents.
I could see it being this