Salmonella is a type of Gram-negative bacteria which belongs to the family Enterobacteriaceae. A salmonella infection, also known as salmonellosis, is a disease caused by these bacteria. It affects the intestinal tract and can spread through contaminated water or food. The most common symptom of a mild salmonella infection is diarrhea, which can lead to severe dehydration in serious cases. Other complications are typhoid and the spread of infection beyond intestines. The bacteria may also enter the bloodstream and infect the tissues throughout the body. It can be diagnosed through a stool test. The treatment of salmonella infections can involve administering antibiotics and anti-diarrheals. The book aims to shed light on some of the unexplored aspects of salmonella infections and the recent researches in this field. Such selected concepts that redefine the study of this disease have been presented herein. Scientists and students actively engaged in this field will find this book full of crucial and unexplored concepts.