More than 26 million people worldwide were estimated to be living with Alzheimer’s disease in 2006, according to a study led by researchers at the Johns Hopkins Bloomberg School of Public Health. The researchers also concluded the global prevalence of Alzheimer’s disease will grow to more than 106 million by 2050. By that time, 43 percent of those with Alzheimer’s disease will need high-level care, equivalent to that of a nursing home. The findings were presented June 10 at the Second Alzheimer’s Association International Conference on Prevention of Dementia held in Washington, D.C. and are published in the Association’s journal, Alzheimer’s & Dementia.