Laboratory-based HIV surveillance with information on exposure: importance of discriminating person-based from test-based results.

Within a surveillance programme in a Regional Public Health Laboratory anonymous information on HIV test, requesting physician and tested individual is automatically selected, regardless of test result. Thereby, personal identifiers are transformed into unique but meaningless numeric codes. Besides, requesting physicians receive a questionnaire on indication for testing (response 87%).

[2 men with active syphilis infection and HIV-I infection].

We report the case histories of two men who were living together and who were seropositive for human immune deficiency virus (HIV) and also had positive syphilis tests. Conceivably, reactivation of an earlier syphilis infection (which had been treated) had occurred after infection with HIV. It is therefore recommended to treat such patients according to the standard of treatment of neurosyphilis.