There are at least 3 assisted living facilities on Rock Prairie Rd., I'm familiar with them because I spent a lot of time at two of them over the past several years. No need to name names, but of the two across from CS Middle School, one is a memory care facility which serves those with dementia and Alzheimers. The one at Rock Prairie / Medical Dr. close to S&W Hospital doesn't have a stated memory care unit, but has more than a few residents with dementia / early stage Alzheimers. I've had close relatives at both, visited about 5 days each week up until last year when my last relative passed, and I still go to one of them now and then to see other residents I met during that time.
The flu went through one of the facilities pretty bad in Dec. 2018 and affected 30-40% of the residents. I know this because I visited at dinner time most days, and the dining room was half empty for a few weeks. My relative was one of the flu victims, and he and 3-4 others never recovered from it. My relative passed while on hospice, he had a couple of prior medical issues earlier in the year and had been a candidate for hospice twice but didn't "qualify" until the third hospice evaluation when he stopped eating and drinking after getting sick during the flu outbreak.
After my experiences, in my opinion you really can't reach any conclusion on what was truly responsible for today's death or the deaths of my relatives, unless autopsies are performed. In my cases, one had Alzheimers but died from cancer. The one with the flu had "Alzheimers" as the cause of death on the death certificate. In both cases, drilling down into the distinct or finite causes of death was not a priority of the families. It is with some families, but not with others.