So what ails you, David?
Confusion persisted last night over the exact form of hepatitis that David Norris contracted.
Some types of hepatitis can be life-threatening and damage the liver over time.
Mr Norris said the form of hepatitis he contracted from contaminated drinking water in Europe in the mid-1990s was "non A, non B and non C".
This appears to rule out hepatitis A which is rarely serious. It also eliminates the other two forms of the virus which can lead to cirrhosis of the liver or liver failure.
The other forms include hepatitis E which is generally mild and usually caught by consuming contaminated food or drink. There is also Hepatitis G which does not cause disease.
The senator has so far failed to clarify exactly what form of the disease he suffers from.