The high prevalence and rapid spread of multi drug resistance pathogenic bacteria has necessitated search for new therapeutic agents from plant products. Thus, this book touches on antibiotics profiles of Salmonellae and x-rays the antibiotics that are still relevant in treatment of infections caused by these pathogens which may help in reducing spread and further emergence of multidrug resistance factors. The methods of analysis employed in plasmids extraction, fractionation of the plant bioactive agents, toxicology test and results obtained are simply and clearly presented and interpreted for easy comprehension. References to papers and reviews are also included in the text as guide to the reader for further detail so as to increase his/her knowledge in specific direction(s).This book is put together to satisfy to some extent the yeaning of a wide range of readers like Medical microbiologists, Ethno botanists, Pharmacologists, Veterinary doctors, Phytochemists, Pharmacognosists, Molecular biologists, Medical Lab Scientists and Students. It is also helpful to Industrialists who are interested in formulation of drugs from plants source and the Traditional healers for local remedies