From Why am I still sick in the write up with this post - Eva Sapi explains how spirochetes can morph into biofilms, or even intracellular bacteria.
Later in my off-camera interviews with Dr. Eva Sapi, she explained that sub-MIC (less than the effective doses) of doxycycline can actually cause Borrelia Burgdorferi spirochetes to change forms – morph -- and “hibernate” into cyst forms. There, they survive indefinitely in sleeper cells, literally.
See my HD interviews with doctors, dentists, and other biofilm experts: http://www.youtube.com/user/ADRSupport/videos?view=0&flow=grid&sort=dd&live_view=500