They are the silent threats lurking in the shadows of global health. Until they are not. While the world focuses on the pandemics of the day, a group of virulent viruses remains dangerously underexplored. Chikungunya. Lassa. Nipah. Hanta. Dengue. These pathogens, capable of causing severe neurological damage, hemorrhagic fevers, and devastating outbreaks, represent a critical gap in our scientific and public health defenses. This essential volume, drawing on the expertise of top researchers, emerges as a vital response to this neglect. It consolidates the latest research into a single, coherent resource, offering a comprehensive analysis of these viruses from their molecular structures and epidemiological patterns to their clinical management and the societal factors that allow them to persist. "A very important step in the right direction... a powerful tool against ignorance and a strong basis for life in tomorrow." Prof. Paul Pumpens, from the Foreword More than just a compendium of knowledge, this book is a compelling call to action. It is an indispensable guide for virologists, epidemiologists, and public health professionals, and an accessible entry point for students and non-specialists, urging the scientific community to prioritize these latent threats before the next crisis strikes. Key Features Fills a Critical Void: Provides a thorough examination of the world’s most overlooked and impactful viral pathogens. In-Depth Analysis: Offers a unique comparative study of Chikungunya, Lassa, Nipah, Hantaviruses, and Dengue. From Lab to Clinic: Bridges the gap between cutting-edge research and practical clinical implications. Timely and Urgent: A crucial resource in a post-COVID world, advocating for proactive viral surveillance. Relevant for a Broad Audience: Written for seasoned scientists while remaining accessible to students and professionals in related fields.