The Immune System: Mental Health and Neurological Conditions fully investigates how immune-related cellular, molecular and anatomical changes impact mental functioning. This book combines human and animal studies to reveal immunological changes related to mental-health problems. In addition, users will find comprehensive information on new research related to the microbial composition of the gut, aka, the microbiome, and how it influences brain function and mental health. Common comorbidities with mental illness and their inherent immunological or inflammatory components are also covered. New chapters and sections on peripheral and central mechanisms in relation to viral pathogens, RNA editing to treat diseases, and COVID-19 will be included. Written by leaders in the field, the book synthesizes basic and clinical research to provide a thorough understanding on the role of immunity in neuropsychiatry. This book covers both mental-health conditions and degenerative disorders of the brain, including depression, schizophrenia, autism-like spectrum disorders, Parkinson's and Alzheimer's-like dementia.