<prompt> False ye VDRL, is seen in all except -Lepromatous LeprosyInfectious mononucleosisHIVPregnancy  <response>: Ans. is d i.e., Pregnancy False positive reactions in nontreponemal tests: As cardiolipin antigen is present both in T. pallidum and in mammalian tissues, reagin antibodies may be induced by treponemal or host tissue antigens. This accounts for the biological flase positive reactions. 