Engineered models of the human brain infected with the herpes virus develop Alzheimer's characteristics.
According to UPI, the new research analysis was published Wednesday in the journal Science Advances.
Researchers used a 3D human-tissue model of the brain to investigate the link between herpes and Alzheimer's disease.
They found a possible causal relationship between sporadic Alzheimer's disease and Herpes Simplex Virus-1.
There are two types of herpes simplex virus; HSV-1 and HSV-2.