Hallo @suesa.This story is very sad, and very much we pity on this family. Because we know that Alzheimer's disease is not a contagious disease, that's the kind of syndrome with apoptosis of brain cells at about the same time and so the brain seems to shrivel and shrink. And Alzheimer's is also referred to as a synonymous disease with parents. The risk for developing Alzheimer's, increases accordingly. Starting at age 65, a person has a five percent risk of developing the disease and will double every five years. And already this disease with parents, but history proved the first disease known to suffer from this disease is women in their early 50s. Therefore, the mother who is suffering from this disease is not allowed to let alone because his mind will be stressful and if not on guard by the family is strongly recommended to stay in the nursing home and let him in a crowded and peaceful atmosphere.