“…Commingling of dural grafts from different donors was discontinued and a sodium hydroxide treatment step was instituted to inactivate the CJD agent. Subsequent to widespread publication of this first case, many other Lyodura-associated CJD cases were reported worldwide, including in Germany, Italy, Japan, New Zealand, Spain, and the United Kingdom, and a second case was reported in the United States (20, 21,47,49,53,54,57,77).…”