BusinessWeek (Internet / Print) 02/21/06 Many viruses have figured out ways to elude the body's protective system. One of the cleverest is the hepatitis-C virus. In scores of millions of infected people, the bug does its damage by making trillions of new viruses a day, years after year. Experimental drugs now in clinical trials will be far more effective against the virus than anyone had expected. "The drugs have shown such a tremendous effect because the virus is getting a double whammy," explains Dr. Stanley Lemon, professor of microbiology, immunology, and internal medicine at the University of Texas Medical Branch at Galveston. He's one of the leaders of the effort to decipher the mechanism.