A colleague treated a patient for secondary syphilis, then repeated the course of treatment because the RPR remained positive after the second course of treatment. How long does it take for the RPR ...
Data from a large study of syphilis indicate a high rate of neurosyphilis in HIV-infected patients with a CD4-cell count less than or equal to 350 or a serum RPR titer greater than or equal to 1:32.
The Journal of Infectious Diseases, Vol. 165, No. 6 (Jun., 1992), pp. 1124-1126 (3 pages) The prevalence of biologic false-positive (BFP) reactions for syphilis (reactive rapid plasma reagin [RPR] ...