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cold sores

·May 21, 2025·4 min read

Cold Sore Virus Linked to Alzheimer’s, Antivirals May Lower Risk

A large study suggests that symptomatic infection with herpes simplex virus 1 (HSV-1)—best known for causing cold sores—may significantly raise the risk of developing Alzheimer’s disease. Researchers found that people with HSV-1 were 80% more likely to have Alzheimer’s, while those treated with antiviral medications had a 17% lower risk.

Featured Neurology Neuroscience

·January 2, 2025·4 min read

Link Between Cold Sore Herpes Virus and Alzheimer’s Discovered

Researchers discovered a connection between Alzheimer’s disease and herpes simplex virus-1 (HSV-1), suggesting viral infections may contribute to neurodegeneration. The study found that tau protein, typically seen as harmful in Alzheimer’s, might initially protect the brain from the virus but later exacerbate damage.