Neuroscience

Why a scorned theory of Alzheimer’s is hot again

People attend memory training at the community ambulatory care in Hong Kong June 21, 2010. Asia's fast-ageing population will make up more than half of the world's dementia patients in 40 years, with China shouldering the biggest chunk. With very few skilled nursing homes, daycare facilities or plans to build many more, health experts say the region is ill-prepared to cope with the sharp increase in patients needing such specialised and intensive care. Picture taken June 21, 2010. To match Feature ALZHEIMER'S-ASIA/. REUTERS/Tyrone Siu (CHINA - Tags: HEALTH SOCIETY) - RTR2FVU1

A therapy session for Alzheimer's sufferers: could the disease be caused by microbes? Image: REUTERS/Tyrone Siu

P. Murali Doraiswamy
Professor of Psychiatry and Medicine, Duke University Medical Center
Ruth Itzhaki
Honorary Senior Research Fellow, Oxford University
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