OMICS Group invites all the participants across the globe to attend the 2nd World Congress on Vaccines & Vaccination during 20-22 August 2012 at Hilton Chicago/Northbrook, USA. The first International Conference and Exhibition on Vaccines & Vaccination was held in Philadelphia November 2011 with a theme "Current Strategies in Vaccination", bringing together Medical Specialists, Researchers and Vaccine Developer making it largest and most successful international congregation ever assembled by OMICS Group. As part of a collaborative effort, Journal of Vaccines & Vaccination and Journal of Clinical & Cellular Immunology has published all papers presented at this meeting as a special issue. Vaccines-2011 opens new ideas, advanced technologies, innovative approaches towards Vaccines. Vaccines-2012 is a remarkable event which brings together a unique and International mix of large and medium biotechnological companies / industries, leading universities and research institutions making the conference a perfect platform to share experience, foster collaborations across industry and academia, and evaluate emerging technologies across the globe. Conference Highlights the following topics: • Vaccines and the basic immune system • Cellular and molecular-based vaccines • Vaccines against infectious diseases • Therapeutic vaccine manufacturing, production and development • Logical and ethical issues and vaccines • New approaches for B and T cells • Experimental and clinical evaluation of therapeutic vaccines • Basic Vaccinology and modern vaccine discovery technologies