...the mix. Interleukin 2 is a protein that regulates the body's immune response. A synthetic version is produced by Chiron Corp. and is federally approved for the treatment of melanoma and kidney cancer, but not AIDS. The study -- funded by...

...people between the ages of 5 and 49. Another 70 may be ordered. A national flu vaccine shortage was announced when Chiron Corp., which supplies about 50 percent of the nation's flu vaccine, was found to have a sterility problem in its Liverpool...

...meantime, the lion's share of government funding has flowed to the established vaccine makers Sanofi-Aventis and Chiron Corp. The government awarded Sanofi $100 million contract to crank out a bird flu vaccine and Chiron received $62.5...