Sure, The trick is in the words.
Nobody "Dies from Alzheimer" it is not that kind of disease.
When under care it is the responsibility of the Care Seller to keep the person alive and healthy.
A person will die of natural causes, Unless somebody slips up in the care field.
Keeping the person up and healthy to avoid complications, like Pneumonia, or not taking medications, slips and falls. Avoiding bed sores.
Keeping the person fed, and bathed. Out of trouble mishandling common devices, etc.