Neurocognitive and neuropsychiatric disorders contribute to a substantial amount of global morbidity and, as such, the identification of their causes is paramount to understanding their underlying pathophysiology as well as treatment and prevention strategies. Infectious Diseases in Neurocognitive and Neuropsychiatric Medicine considers the many infectious diseases that have been associated with cognitive and neuropsychiatric function. In Parts I-III, each chapter focuses on a different disease to cover a range of viral, bacterial, and parasitic diseases in neurocognitive and neuropsychiatric medicine. Part IV considers infectious diseases and clinical conditions and syndromes, while Part V examines the relationship between neurocognitive and neuropsychiatric function and the microbiome and Part VI the relationship with childhood development. In addition to molecular and clinical descriptions of the infectious diseases themselves, many chapters also explore the diseases' basic epidemiological features to consider where they may be exerting the greatest impact on cognitive and neuropsychiatric function. Where they exist, the possible mitigating factors and treatments for the neuropsychiatric and cognitive dysfunction that can be associated with these infectious diseases are also explored.In doing so, this volume examines the neurocognitive and neuropsychiatric disorders associated with infectious disease to better understand the role infections play.