Severe community acquired pneumonia (SCAP) remains a significant threat to global health, causing immense morbidity and mortality. This book explores recent advances in pathogens, host immunity, and antimicrobial resistance. Details on innovative diagnostic techniques, including novel imaging modalities and biomarkers for rapid and accurate diagnosis, provides up-to-date guidance on therapeutic strategies such as FAST HUGS BID, along with palliative care and rehabilitation, supported by case studies. This practical guide is a ready reckoner for internal medicine residents, pulmonologists, and critical care specialists. Key Features: Details on preventative measures, including vaccination strategies and public health interventions. Provides a comprehensive and up-to-date current resource companion for Internal Medicine Residency, Pulmonology and Critical Care Consultants. Offers a roadmap to navigate the ever-changing landscape of severe community-acquired pneumonia, including newer diagnostic methods, immunology, and up-to-date management.