What's going on? Perhaps a math refresher is in order.
92% of those over 65 are vaccinated in Illinois. Around 85% of those over 50.
Given 10000 people at risk of death (pretty much only older people) there are around 1000 unvaxxed and 9000 vaxxed. If vaccines provided 90% protection against death for those at risk and 2% in the age group died if unvaxxed or not previously infected, that would mean 18 dead that were vaxxed and 20 dead that were unvaxxed. That would be just a bit over 50% were unvaxxed. But not quite 40% were actually vaxxed which means vaccines are actually more than 90% effective against death.
Thank you.