<prompt> A 24 year old male patient with ho primary syphilis in the form of genital ulcer mucocutaneous lesions, presents with features suggestive of neurosyphilis in the form of meningitis for which appropriate treatment was staed. What will you do for monitoring of treatmentVenereal disease Research Laboratory test VDRLTPIFTS-ABELISA  <response>: The nontreponemal cerebrospinal fluid CSF Venereal Disease Research Laboratory VDRL test is a mainstay for diagnosis of neurosyphilis. Although the estimated specificity of the test is high, the sensitivity is lower, which is a major limitation of the test Ref Harrison20th edition pg 2345 