Early Repeat Chlamydia trachomatis and Neisseria gonorrhoeae Infections Among Heterosexual Men

Abstract

Chlamydia trachomatis (CT) and neisseria gonorrhoeae (GC) are the 2 most common sexually transmitted infections in the United States.1 Among women, repeated infections with CT and GC are associated with serious reproductive outcomes such as pelvic inflammatory disease, ectopic pregnancy, chronic pelvic pain, and infertility.2-6 Because men often spontaneously clear infection7,8 and do not have the same adverse outcomes as women, less attention has been paid to repeated infections among men. However, the burden of repeat infections among men is high. The average repeat infection rates of CT and GC among men (11% and 7%)9 are close to those reported among women (10.7% and 3.6%).10 Repeatedly infected men are reservoirs of infection for women,11,12 thus preventing repeat infections among men is an important public health measure. Understanding whether these repeat infections result from reexposure to a baseline partner, infection from a new partner, or treatment failure is important in understanding the most effective interventions. Centers for Disease Control and Prevention (CDC) suggests expedited partner treatment (EPT) or the provision of medication or prescriptions for index persons to deliver to their sex partners if there is concern that their partner will not seek care.13 The basic assumption of this approach is that most repeat infections are due to reexposure and treating the source of exposure will reduce the repeat infection. Although the efficacy of EPT for preventing repeat infections among men has been demonstrated in several studies, repeat infection rates among men given EPT remain high (10%–14%).14,15 This suggests that, among men, some of the repeat infections may be due to factors other than reexposure and that rescreening in addition to the provision of EPT may be needed. As an additional prevention measure among women, the CDC strongly encourages rescreening of women 3 months posttreatment. Suggestions for men are more nebulous. The CDC states that there is a lack of evidence to support rescreening among men.16 The purpose of this article is to examine the possible origin of infection among heterosexual men who rescreen positive for CT and/or GC.