Antibiotics play a vital role in treating diseases of bacterial origin, a major cause of morbidity and mortality in the developing world. High consumption, often clinically unnecessary, have led to a steady increase in drug resistance, particularly to antibiotics used in treating high prevalence diseases. In order to avert these problems, this book emphasis on the drug resistance mechanisms used by Salmonella enterica serovar typhimurium isolated in a rural community setting. Specific topics of interest in research on community use of antibiotics and there paradigms are tackled. The book will immensely benefit governments, public and private institutions, and medical leaders who need to implement policies and programs that would encourage changes in the way antibiotics are used. Pharmaceutical companies, health training institutions, researchers and scienties will equaly benefit.