Titers can be expected to decline 4-fold by 3 to 6 months and 8-fold by 6 to 12 months after treatment of primary or secondary syphilis. The titer may revert to nonreactive by 12 months ...

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.

No infant with latent syphilis was included in this study unless the serologic tests were found to be persistently positive in high titer. Almost all the patients in the group were infected before ...

6.0 mL blood in serum separator tube (SST). Separate serum from cells ASAP or within 2 hours of collection. A minimum of 2 mL serum is needed. Avoid freezing. Storage/Transport Temperature: ...

Syphilis was soon rampant across the Continent and beyond, but its origins continued to be fiercely debated, with some historians claiming it was actually home-grown. Now, scientists have carried ...

The ulcers healed with scars after 2 months. After a year of follow-up, the patient's rapid plasma reagin titer declined to 1:2, and his CD4 count increased to 656 cells per μL. Tertiary syphilis ...