<prompt> All of the following are Indications for CSF examination in adults with all stages of Syphilis ExceptRPR titer 1:32VDRL titer 1:32Active teiary syphilisSuspected treatment failure  <response>: Indications for Cerebrospinal Fluid Examination in Adults with All Stages of SyphilisAll PatientsAdditional Indications in HIV-Infected Persons1. Signs or symptoms of nervous system involvement e.g., meningitis, hearing loss, cranial nerve dysfunction, altered mental status, ophthalmic disease , ataxia, loss of vibration sense, or2. RPR or VDRL titer 1:32, or3. Active teiary syphilis, or4. Suspected treatment failure11. CD4 T cell count 350mL, or2. All HIV-infected persons recommended by some expesReference: Harrison;s Principles of Internal Medicine; 19th edition; Chapter 206; Syphilis 