About Chiron Vaccines Preventing tranfusion-transmitted infection is what Chiron is all about. As the world leader in blood safety for the transfusion industry, we develop novel tools, products and services to protect the global blood supply. Chiron is the blood screening business of Novartis Vaccines and Diagnostics, a division of Novartis AG that was created in 2006 following the acquisition of Novartis Vaccines and Diagnostics. | 
