Chiron's PROCLEIX® NAT products are used to test more than 25 million blood donations annually in countries around the world, preventing thousands of HIV-1, hepatitis and West Nile virus transfusion-transmitted infections. Transcription-mediated Amplification (TMA) technology, developed by Chiron's collaborator, Gen-Probe Incorporated, simplifies NAT by enabling simultaneous detection of multiple viruses in a single tube. With fewer steps and less processing time than other NAT methods, TMA technology reduces the risk of contamination and streamlines workflow for faster results.