spinal fluid leak came back

It only took two days before the spinal fluid leak came back. The doctors seemed optimistic that they could seal the leak. Tighter stitches, a little glue. If all else failed a plastic surgeon could be called in. I never had any doubts that they could fix it. What keep going through my mind was how did Marie get the infection in her spinal fluid. Was this how the infection got in? My goal became to catch up with the infectious disease doctor and ask him.