says...
snip
A "toxic" hepatitis may be related to a number of compounds other than
the medicines that you may take. For instance, do you work with solvants,
paintings, vernishes, in a laundry, in a garage, a gas station, or more
generally with chemicals?
If you don't, you may suffer from a viral hepatitis. Here also, there are
hepatitis other than A, B, C, or AI (autoimune). Hepatitis D, E, F, G and
H are in the process of being described and little data are available on
these.
Another cause of hepatitis is the presence of a parasite but probably
this should have been seen by the MDs yet, considering the numbers of
exmainations that you underwent. This is also mostly true if you
travelled a lot in third world countries...
Good luck,
YD