This book discusses the organ-specific systemic manifestations of COVID-19. The initial chapters of the book review the origin and evolution of the coronaviruses, followed by pathogenesis and immune response during COVID-19 infection. The book also provides insight into the role of angiotensin-converting enzyme 2 in the onset of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pathogenesis. It summarizes the neurological aspects of SARS-CoV2, including transmission pathways, mechanisms of invasion into the nervous system, and mechanisms of neurological disease. It also delineates...