Chapter 124. Sexually Transmitted Infections: Overview and Clinical Approach (Part 21) Although gonorrhea is now substantially less common than chlamydial infection in industrialized countries, screening tests for N. gonorrhoeae are still appropriate for women and teenage girls attending STD clinics and for sexually active teens and young women from areas of high gonorrhea prevalence. Multiplex NAATs that combine screening for N. gonorrhoeae and C. trachomatis in a single low-cost assay now facilitate the prevention and control of both infections in populations at high risk. All patients with newly detected STIs or at high risk for STIs according to routine risk assessment as.