question: My daughter age 33 has had severe headache and high fever (103.5 at admit to hospital,) 6 weeks off and on. Didn't know at first of typhoid. They are testing now but meantime she was treated with Zpack which helped for a week before symptoms came roaring back. Now she is on rocephin day three, still very sick.  Other diseases have been ruled out. J encephalitis, meningitis, malaria.. Waiting on dengue test. How long can this goo. Before she sees improvement. Can you think of any other disease this could be?