<p>According to a study, older persons who were infected with COVID-19 have a much greater risk of getting Alzheimer's disease within a year--up to 50% to 80% higher than a control group. </p>.<p>In a study published today in the Journal of Alzheimer's Disease, researchers report that people 65 and older who contracted COVID-19 were more prone to developing Alzheimer's disease in the year following their COVID diagnosis. </p>.<p>And the highest risk was observed in women at least 85 years old. The findings showed that the risk for developing Alzheimer's disease in older people nearly doubled (0.35% to 0.68%) over a one-year period following infection with COVID. </p>.<p>The researchers say it is unclear whether COVID-19 triggers new development of Alzheimer's disease or accelerates its emergence.</p>