There are some very good articles on line if you google your question, here is a very brief summary from alz.org:
As the disease advances, the needs of the person living with Alzheimer's will change and deepen. A person with late-stage Alzheimer's usually:
Has difficulty eating and swallowing Needs assistance walking and eventually is unable to walk Needs full-time help with personal care Is vulnerable to infections, especially pneumonia
You can also find some discussions about this on AgingCare is you type "late stage symptoms" in the site search.
As the disease advances, the needs of the person living with Alzheimer's will change and deepen. A person with late-stage Alzheimer's usually:
Has difficulty eating and swallowing
Needs assistance walking and eventually is unable to walk
Needs full-time help with personal care
Is vulnerable to infections, especially pneumonia
You can also find some discussions about this on AgingCare is you type "late stage symptoms" in the site search.