(BUSINESS WIRE)--Merck & Co., Inc. (NYSE:MRK): WHAT: Merck will host a conference call to discuss a corporate announcement. WHO: Mr. Richard T. Clark, CEO and President WHEN: Monday, Nov. 28, 2005, 8:30 a.m. ET DIAL-IN: 8:30 to 9:30 a.m. ET Investors and analysts: (706) 758-9927 Journalists (LISTEN ONLY): (706) 758-9928 http://www.merck.com/newsroom/webcast