This book is written in a clear and straightforward manner to ensure that the content is accessible and easily comprehensible to all readers. It consists of two sections: one on viral diseases and the other on bacterial diseases, both of which are supported by recent references. The book provides comprehensive and up-to-date information on all zoonotic diseases of bacterial and viral origins that impact human and animal health globally. With the aid of this book, readers can enrich their knowledge on the subject of zoonotic diseases and clarify any doubts or concepts with ease and confidence. This book is highly beneficial for scientists, teachers, students, officers, diagnosticians, laboratory technicians, public health professionals, and medical personnel who are directly or indirectly involved in research, teaching, training, extension, diagnosis, epidemiology, and control of zoonotic and food-borne diseases.