Immune system may wage a battle in brain disorders: An image of a T cell from a healthy person. NIAID Health and Fitness Immune System May Mount an Attack in Parkinson’s Disease by Press on July 27, 2017 Press Author More in Health and Fitness: On Hantavirus, Park Forest Officials Urge Caution May 18, 2026 Rep. Kelly Condemns FDA Approval of Flavored E-Cigarettes May 6, 2026 Park Forest Aligns With Illinois Guidance on Childhood Vaccines Amid Federal Changes January 11, 2026 Immune system may wage a battle in brain disorders: An image of a T cell from a healthy person. NIAID