As many as 411,000 new cases of Alzheimer’s disease are diagnosed every year.
Hebert, Liesi E., Laurel A. Beckett, Paul A. Scherr, and Denis A. Evans. Annual Incidence of Alzheimer Disease in the United States Projected to the Years 2000 through 2050. Alzheimer Disease Assoc Disord. 2001; 15(4): 169-73. http://www.ncbi.nlm.nih.gov/pubmed/11723367