A recommendation for timing of repeat Chlamydia trachomatis test following infection and treatment in pregnant and nonpregnant women

An Update on Gonorrhea and Chlamydia

Gonorrhea and chlamydia infections remain a significant public health concern with most cases occurring in adults younger than 25 years old. Diagnosis relies on nucleic acid amplification testing as this is the most sensitive and specific test. Treatment with doxycycline or ceftriaxone is recommended for chlamydia and gonorrhea, respectively. Expedited partner therapy is cost-effective and acceptable by patients as a means to reduce transmission. Test of cure is indicated in persons at risk for reinfection or during pregnancy. Future directions include identifying effective strategies for prevention.

Developing Sentinel Surveillance for Chlamydia and Gonorrhea Using Test Results From Routine Screening During Pregnancy

Background.

Interpretation of case-based surveillance of chlamydia and gonorrhea is limited by the lack of negative tests for comparison. We sought to develop a sustainable electronic health record (EHR)-based approach to disease surveillance in a sentinel population of pregnant persons.

Methods.

We conducted a one-year assessment of sexually transmitted infections (STIs) in persons receiving at least one pregnancy-related visit within our university medical center. Data were obtained using EHR analytic structured query language code (SQL). Patients were categorized by whether they had an STI test during pregnancy and if screened, by the STI test results (positive or negative). We assessed screening and positivity by demographic using bivariate analyses. Predictors of a positive STI test were determined using logistic regression.

Results.

We identified 4,553 persons who received pregnancy care from January 1 to December 31, 2021. Seventy-six percent (n, 3483) of persons were screened for an STI during pregnancy. Those who identified as white or had private insurance were less likely to have a chlamydia test. Among persons screened, Trichomonas was the most commonly detected STI (5%, 141/2,698) followed by chlamydia (4%, 135/3,456), and gonorrhea (0.7% 24/3,468). Predictors of a positive STI test during pregnancy were Black race [adjusted odds ratio (aOR) 6.0 (95% Confidence Interval 4.2–8.7)], age ≤ 25 [aOR 2.5 (1.9–3.3)], and public insurance [aOR 1.6 (1.2–2.1)].

Conclusions.

We demonstrated that EHRs can be utilized to assess gonorrhea and chlamydia positivity. These methods could potentially be applied in other jurisdictions to improve the understanding of national STI surveillance.

Electronic health records of a sentinel population of pregnant persons were queried to perform STI surveillance. This approach may improve the accuracy of national case estimates of STIs.

Sexually transmitted infections and female reproductive health

Women are disproportionately affected by sexually transmitted infections (STIs) throughout life. In addition to their high prevalence in women, STIs have debilitating effects on female reproductive health due to female urogenital anatomy, socio-cultural and economic factors. In this Review, we discuss the prevalence and impact of non-HIV bacterial, viral and parasitic STIs on the reproductive and sexual health of cisgender women worldwide. We analyse factors affecting STI prevalence among transgender women and women in low-income settings, and describe the specific challenges and barriers to improved sexual health faced by these population groups. We also synthesize the latest advances in diagnosis, treatment and prevention of STIs.

Women are more affected by sexually transmitted infections than men. This Review examines the impact of non-HIV STIs on women’s health, and discusses recent advances and current challenges in the treatment and prevention of STIs.

Clinical and epidemiological characteristics of Chlamydia trachomatis infection among sexually transmitted infection clinics patients

BACKGROUND

Chlamydia trachomatis (CT) infections are a public health problem because of its high incidence and consequences on reproductive health. Our aim is to describe the socio-demographic, behavioral and clinical characteristics of patients with CT infection in order to adapt preventive interventions for the highest risk groups.

METHODS

Prospective case series of all patients diagnosed with CT between September 2016 and January 2019 in the reference STI clinics of Osakidetza (Basque Health Service) in Bizkaia (Spain).

RESULTS

847 patients (88.2%) agreed to participate: 41% women, 33.8% heterosexual men and 25% men who has sex with men (MSM); 33% were immigrants and 26% were under the age of 25 (33% of the women). Only 20% systematically used condoms. 36% had previously had STI and 28% had simultaneously another STI. 55% of the infections were asymptomatic (70% among women). In MSM, the rectum was affected in 69.5% of cases, the urethra in 31.4%, and the pharynx in 14.5%. The cervix was affected in 86.5% of the women, the rectum in 17.6%, and the pharynx in 13.8%. A contact study was only carried out in 58% of cases. The reinfection rate at 4 weeks was 17% among those with criteria to perform a test of cure.

CONCLUSION

Our results justify implement opportunistic screening in women under the age of 25 and young immigrants of both sexes, by taking genital and extragenital samples, as well as developing appropriate guidelines for the notification and follow-up of contacts.

Diagnosis and Management of Uncomplicated Chlamydia trachomatis Infections in Adolescents and Adults: Summary of Evidence Reviewed for the 2021 Centers for Disease Control and Prevention Sexually Transmitted Infections Treatment Guidelines

To prepare for the development of the 2021 Centers for Disease Control and Prevention (CDC) sexually transmitted infections treatment guidelines, the CDC convened a committee of expert consultants in June 2019 to discuss recent abstracts and published literature on the epidemiology, diagnosis, and management of sexually transmitted infections.This paper summarizes the key questions, evidence, and recommendations for the diagnosis and management of uncomplicated Chlamydia trachomatis (CT) infections in adolescents and adults that were reviewed and discussed for consideration in developing the guidelines. The evidence reviewed mostly focused on efficacy of doxycycline and azithromycin for urogenital, rectal, and oropharyngeal CT infection, CT risk factors in women, performance of CT nucleic acid amplification tests on self-collected meatal specimens in men, and performance of newer CT point-of-care tests.

Sexually Transmitted Infections Treatment Guidelines, 2021

These guidelines for the treatment of persons who have or are at risk for sexually transmitted infections (STIs) were updated by CDC after consultation with professionals knowledgeable in the field of STIs who met in Atlanta, Georgia, June 11-14, 2019. The information in this report updates the 2015 guidelines. These guidelines discuss 1) updated recommendations for treatment of Neisseria gonorrhoeae, Chlamydia trachomatis, and Trichomonas vaginalis; 2) addition of metronidazole to the recommended treatment regimen for pelvic inflammatory disease; 3) alternative treatment options for bacterial vaginosis; 4) management of Mycoplasma genitalium; 5) human papillomavirus vaccine recommendations and counseling messages; 6) expanded risk factors for syphilis testing among pregnant women; 7) one-time testing for hepatitis C infection; 8) evaluation of men who have sex with men after sexual assault; and 9) two-step testing for serologic diagnosis of genital herpes simplex virus. Physicians and other health care providers can use these guidelines to assist in prevention and treatment of STIs.

Clinical and epidemiological characteristics of Chlamydia trachomatis infection among sexually transmitted infection clinics patients

BACKGROUND

Chlamydia trachomatis (CT) infections are a public health problem because of its high incidence and consequences on reproductive health. Our aim is to describe the socio-demographic, behavioral and clinical characteristics of patients with CT infection in order to adapt preventive interventions for the highest risk groups.

METHODS

Prospective case series of all patients diagnosed with CT between September 2016 and January 2019 in the reference STI clinics of Osakidetza (Basque Health Service) in Bizkaia (Spain) RESULTS: 847 patients (88.2%) agreed to participate: 41% women, 33.8% heterosexual men and 25% men who has sex with men (MSM); 33% were immigrants and 26% were under the age of 25 (33% of the women). Only 20% systematically used condoms. 36% had previously had STI and 28% had simultaneously another STI. 55% of the infections were asymptomatic (70% among women). In MSM, the rectum was affected in 69.5% of cases, the urethra in 31.4%, and the pharynx in 14.5%. The cervix was affected in 86.5% of the women, the rectum in 17.6%, and the pharynx in 13.8%. A contact study was only carried out in 58% of cases. The reinfection rate at 4 weeks was 17% among those with criteria to perform a test of cure.

CONCLUSION

Our results justify implement opportunistic screening in women under the age of 25 and young immigrants of both sexes, by taking genital and extragenital samples, as well as developing appropriate guidelines for the notification and follow-up of contacts.

Sexually Transmitted Infections in Association With Area-Level Prostitution and Drug-Related Arrests

OBJECTIVES

This study aimed to examine the mediators and moderators of area-level prostitution arrests and sexually transmitted infections (STIs) using population-level data.

METHODS

Using justice and public health STI/HIV data in Marion County (Indianapolis), Indiana, during an 18-year period, we assessed the overall association of area-level prostitution and drug-related arrests and STI/HIV, and mediators and moderators of the relationship. Point-level arrests were geocoded and aggregated by a census block group.

RESULTS

Results indicate a positive relationship between numbers of prostitution arrests and area-level STI rates. There was a dose-response relationship between prostitution arrests and STI rates when accounting for drug-related arrests. The highest quintile block groups had significantly higher rates of reported chlamydia (incident rate ratio [IRR], 3.29; 95% confidence interval [CI], 2.82-3.84), gonorrhea (IRR, 4.73; 95% CI, 3.90-5.57), syphilis (IRR, 4.28; 95% CI, 3.47-5.29), and HIV (IRR, 2.76; 95% CI, 2.24-3.39) compared with the lowest quintile. When including drug arrests, the second (IRR, 1.19; 95% CI, 1.03-1.38) and the third (IRR, 1.20; 95% CI, 1.02-1.41) highest quintile block groups had lower IRR for reported rates of chlamydia, indicating that drug arrests mediated the prostitution arrest effect.

CONCLUSIONS

These findings inform public health agencies and community-based organizations that conduct outreach in these areas to expand their efforts to include harm reduction and HIV/STI testing for both sex workers and individuals experiencing substance use disorder. Another implication of these data is the importance of greater collaboration in public health and policing efforts to address overlapping epidemics that engage both health and legal interventions.

Declining Chlamydia and Gonorrhea Diagnoses Among Pregnant Women in South Carolina, 2008 to 2018

BACKGROUND

Reported US cases of chlamydia and gonorrhea have increased since 2000, whereas studies in select populations suggest that the prevalence of these diseases has decreased. We sought to determine if these diagnoses are increasing among pregnant women delivering at our center.

METHODS

This is a retrospective study of women delivering at least 1 infant >18 weeks of gestation at the Medical University of South Carolina for 11 years (2008-2018). Using the perinatal information system, we collected maternal race, age, insurer, and chlamydia and gonorrhea screening results during the pregnancy of record. Cochran-Armitage trend analyses were performed to evaluate trends in these diagnoses by delivery year for all women and for age/race subgroups.

RESULTS

During the study period, there were 24,807 deliveries. The median age of women was 28 years (interquartile range, 23-32 years). Five percent (5.0%) of women were diagnosed with chlamydia and 1.2% with gonorrhea. The percent of women diagnosed decreased for both chlamydia (9.6%-3.4%) and gonorrhea (2.5%-1.1%; P < 0.001, trend analyses for both). A higher percentage of Black women had chlamydia and gonorrhea, and both diagnoses declined over time: 17.4% to 6.9% (P < 0.0001) for chlamydia and 5.8% to 2.1% (P < 0.0001) for gonorrhea. In a subanalysis of race and age, Black women younger than 25 years experienced the most significant decline in chlamydia diagnoses (P < 0.0001).

CONCLUSIONS

We observed declining diagnoses of chlamydia and gonorrhea among pregnant women in our center. Although Black women delivering were more likely to have either diagnoses, they experienced a significant decline in both chlamydia and gonorrhea over time.

High rates of persistent and recurrent chlamydia in pregnant women after treatment with azithromycin

BACKGROUND:

Chlamydia trachomatis is a common bacterial sexually transmitted infection that can persist or recur after antibiotic treatment. Universal screening for chlamydia in pregnancy is recommended to prevent adverse birth outcomes. Single-dose oral azithromycin has been the first-line therapy for chlamydia in pregnancy since 2006.

OBJECTIVE:

In the setting of limited data and rising sexually transmitted infection rates in the United States, our goal was to document rates and risk factors for persistent or recurrent chlamydia after azithromycin treatment in pregnancy.

STUDY DESIGN:

This retrospective cohort study included pregnancies with urogenital chlamydia and follow-up testing in women who delivered at an Alabama facility between November 2012 and December 2017. Pregnancies with prescribed azithromycin therapy and repeat chlamydia testing ≥21 days later were included. Chlamydia trachomatis nucleic acid amplification testing was performed on genital swab or urine samples. Descriptive characteristics and birth outcomes were compared for categories stratified by repeat test results: persistence (+ +), recurrence (+ − +), or clearance (+ −). Logistic regression models were used to identify demographic and clinical risk factors for persistent or recurrent chlamydia in pregnancy.

RESULTS:

Among 810 women with 840 pregnancies with repeat chlamydia testing after azithromycin treatment, 114 (14%) had persistence and an additional 72 (9%) had recurrence later in pregnancy. The median time to repeat testing was 30 days (interquartile range, 24–49 days). Concomitant gonorrhea or syphilis in pregnancy was independently associated with persistent or recurrent chlamydia (adjusted odds ratio, 1.6; 95% confidence interval, 1.1–2.4).

CONCLUSION:

Persistent or recurrent chlamydia after azithromycin treatment was detected in nearly 1 in 4 pregnancies with repeat testing in our urban center, highlighting the importance of performing a test of cure and ensuring partner therapy to reduce recurrent chlamydia risk.