Schering-Plough Corp. has made changes to its manufacturing operations in Puerto Rico and the U.S. The company is phasing out manufacturing operations at its Manati, Puerto Rico site, with the expected discontinuation of substantially all operations by the end of 2006. In addition, there will be workforce reductions at manufacturing facilities in Las Piedras, Puerto Rico and in New Jersey. The actions taken will result in the elimination of approximately 1,100 positions, primarily in 2006. ...