BETHLEHEM, Pa.--(BUSINESS WIRE)--Dec. 22, 2004--OraSure Technologies, Inc. (NASDAQ:OSUR), the market leader in oral fluid diagnostics, announced today that The Centers for Disease Control and Prevention (“CDC”) will purchase approximately $2.3 million of the Company’s OraQuick(R) ADVANCE(TM) Rapid HIV-1/2 Antibody Tests. The CDC purchase is expected to be fulfilled by September 30, 2005.