One thing that really bugged me is that none of them thinks to morph out as a way to get rid of the bug. I mean, sure, they'd probably be re-infected fairly soon upon demorphing,
but Ax, for instance, could morph something non-lethal, explain the procedure to the team, and then demorph and get his head fixed that way.
Admittedly, the books have already addressed diseases and injuries that aren't morph-fixable, but this is all pre-Gafinilan. No rule had been made for it.