From the First post on this chain and the first "FACT" posted:
1. Fact: No CRNA or other anesthesia provider at the surger (sic) center in quesiton (sic) was ever witnessed or admitted to administering propofol in a manner that transmits Hepatitis.
Here is the details of how they identified the source of the outbreak and a clear description of the technique used by the Nurse Anesthetists that they feel CAUSED the transmission of the hepatitis.
I think it pretty clearly shows where the break down in sterile technique came from.