TABLE 1.

Characteristics of suspected cases of primary and secondary syphilis and T. pallidum real-time PCR results

CharacteristicUlcus episodes (primary syphilis)Skin manifestations (secondary syphilis)
All casesT. pallidum PCR-positive casesAll casesT. pallidum PCR-positive cases
Total no. (%) of cases716 (100)93 (100)133 (100)34 (100)
Age (yr)
    Median32423739
    Interquartile range25-4136-4732-4532-47
Sexual orientation (no. [%] of cases)
    Men who have sex with men289 (40)85 (91)116 (87)34 (100)
    Men who have sex with women212 (30)6 (7)12 (9)0 (0)
    Women who have sex with men215 (30)2 (2)5 (4)0 (0)
Infections (no. [%] of cases)
    HSV-1a122 (17)1 (1)3 (2)1 (3)
    HSV-2197 (28)0 (0)0 (0)0 (0)
    Neisseria gonorrhoeae28 (4)4 (4)13 (10)5 (15)
    Chlamydia trachomatis53 (7)8 (9)15 (11)8 (24)
  • a One patient was infected with both HSV-1 and HSV-2.