Understanding the Pandemic: Pathophysiology, Transmission, and Treatment of COVID-19 aims to cover all aspects of COVID-19 infection from the virus, transmission, pathogenesis, immune-inflammation response, systemic injury, organ damage, associated factors, and comorbidities that drive mortality. Organized into ten sections, the book aims to provide a comprehensive examination of the impact of COVID-19. The book begins a review of coronaviruses, their structure and mechanism of action. The book goes on to discuss the immune response to the virus and its effect on various organs. It examines clinical cases based on an observations and postmortem studies. Other topics include the long-term effects of COVD-19, vaccines, and public health response.