IgY – An Alternative antibody. This text book gives a clear illustration and description of the principles and concepts of immunology in a highly accessible and comprehensive manner. This book is designed to cater the basic needs of the scientists in the field of Biomedical science, Biotechnology, Immunology, Biochemistry and Microbiology. This book also elaborates and highlights the various techniques employed for in vivo and in vitro analysis of biomolecules. Each chapter starts with introductory details of the techniques followed by laboratory methods. The book is compartmented into five following chapters, 1. Introduction 2. Venom composition and enzyme activities 3. Symptoms, signs and treatment of cobra bite 4. Extraction of egg yolk IgY 5.In vivo and In vitro assays.