Bacteria are single-celled microorganisms and the part of microbiological science which encompasses the study of bacteria is known as “Bacteriology”. Major researches in bacteriology over the past years resulted in the development of many useful vaccines. Journal of Bacteriology & Parasitology, Mycobacterial Diseases, Journal of Infectious Diseases & Therapy, Journal of Bacteriology and Virology, Journal of Applied Bacteriology Symposium Supplement, Society for Applied Bacteriology symposium series.