WHITEHOUSE STATION, N.J.--(BUSINESS WIRE)--Merck & Co., Inc. today hosted its Annual Business Briefing where it outlined its long-term prospects and announced several key improvements in how the Company develops and markets medicines and vaccines worldwide. The Company will continue to cultivate innovation and create customer value in order to drive the growth of its business and position Merck for future success, Merck Chairman, President and Chief Executive Officer Richard T. Clark told investors and analysts today.