This book presents current research in the study of immunology. Topics discussed include TLR agonists as immune adjuvants; modulating immune response with CpG-Oligodeoxynucleotide through the skin; evolution of immunosuppression in liver transplantation; the role of pharmacogenomics in tailoring immunosuppressive therapy for liver transplant recipients; sunlight induced immunosuppression; antibiotic resistance and probiotics; antibiotic resistance in food lactic acid bacteria and nanobiotics to combat bacterial drug resistance.