In a multivariate analysis, neurosyphilis was significantly more likely in patients with a serum RPR titer greater than or equal to 1:32 or a CD4 count of less than or equal to 350 cells/mm 3; a ...

A marked rise in titer provides a simple method of identifying many such lesions as primary syphilis. 6 A simple positive reaction in the presence of a chancrelike lesion in which no spirochetes ...