Principles of Virology: concepts and applications

Principles of Virology: Concepts and Applications is a comprehensive and interdisciplinary textbook that offers a detailed exploration of viruses, their biology, and their broader impact on health, science, and technology. Designed for students, researchers, and professionals, the book combines foundational knowledge with real-world applications across immunology, molecular biology, public health, and biotechnology. The text begins with the origins of virology, virus classification, and the structural components of viruses—capsids, envelopes, and genomes—laying the groundwork for understanding viral replication and infection mechanisms. It provides a deep dive into viral genetics, exploring genome organization, mutation, genetic drift and shift, and mechanisms of evolution and resistance. A major focus is on virus-host interactions, including viral entry, immune evasion, persistence, and pathogenesis. The clinical consequences of infection, tissue tropism, chronic conditions, and oncogenesis are discussed with clarity and scientific depth. The book also addresses diagnostics and therapeutics, covering PCR, serology, genome sequencing, antiviral drugs, and vaccine platforms including mRNA technologies. Distinct chapters explore RNA and DNA viruses, detailing their replication, diseases, and therapeutic targets. Case studies on emerging viruses like Ebola, Zika, and SARS-CoV-2 highlight global health challenges and the need for surveillance and preparedness. The book concludes with applications in gene therapy, oncolytic viruses, and biotechnology, while also addressing ethics and safety. With clear language, logical structure, and illustrative content, Principles of Virology is both a foundational text and a forward-looking guide to modern virology.