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Jensen JS, Unemo M. Antimicrobial treatment and resistance in sexually transmitted bacterial infections. Nat Rev Microbiol 2024; 22:435-450. [PMID: 38509173 DOI: 10.1038/s41579-024-01023-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2024] [Indexed: 03/22/2024]
Abstract
Sexually transmitted infections (STIs) have been part of human life since ancient times, and their symptoms affect quality of life, and sequelae are common. Socioeconomic and behavioural trends affect the prevalence of STIs, but the discovery of antimicrobials gave hope for treatment, control of the spread of infection and lower rates of sequelae. This has to some extent been achieved, but increasing antimicrobial resistance and increasing transmission in high-risk sexual networks threaten this progress. For Neisseria gonorrhoeae, the only remaining first-line treatment (with ceftriaxone) is at risk of becoming ineffective, and for Mycoplasma genitalium, for which fewer alternative antimicrobial classes are available, incurable infections have already been reported. For Chlamydia trachomatis, in vitro resistance to first-line tetracyclines and macrolides has never been confirmed despite decades of treatment of this highly prevalent STI. Similarly, Treponema pallidum, the cause of syphilis, has remained susceptible to first-line penicillin.
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Affiliation(s)
- Jorgen S Jensen
- Department of Bacteria, Parasites and Fungi, Research Unit for Reproductive Microbiology, Statens Serum Institut, Copenhagen, Denmark.
| | - Magnus Unemo
- WHO Collaborating Centre for Gonorrhoea and Other STIs, National Reference Laboratory for STIs, Department of Laboratory Medicine, Microbiology, Faculty of Medicine and Health, Örebro University, Örebro, Sweden
- Institute for Global Health, University College London, London, UK
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2
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McNeil CJ, Barroso LF, Workowski K. Proctitis: An Approach to the Symptomatic Patient. Med Clin North Am 2024; 108:339-354. [PMID: 38331484 DOI: 10.1016/j.mcna.2023.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Proctitis is an inflammatory condition of the distal rectum that can be associated with common sexually transmitted infections (STIs), such as gonorrhea, chlamydia, and syphilis. For persons presenting with ulcerative findings on examination, in addition to syphilis, Mpox, lymphogranuloma venereum, and herpes simplex virus should be in the differential. Providers should also be aware that there are evolving data to support a role for Mycoplasma genitalium in proctitis. Performing a comprehensive history, clinical evaluation including anoscopy, and rectal nucleic amplification STI testing may be useful in identifying the cause of proctitis and targeting treatment.
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Affiliation(s)
- Candice J McNeil
- Department of Medicine, Section on Infectious Diseases, Wake Forest University School of Medicine.
| | - Luis F Barroso
- Department of Medicine, Section on Infectious Diseases, Wake Forest University School of Medicine
| | - Kimberly Workowski
- Department of Medicine, Division of Infectious Diseases, Emory University School of Medicine
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Berti V, Blondel J, Spindler L, de Parades V, Aubert M, Le Monnier A, Lourtet-Hascoet J. Infective anoproctitis in men having sex with men: Don't forget Mycoplasma genitalium. Infect Dis Now 2023; 53:104771. [PMID: 37598775 DOI: 10.1016/j.idnow.2023.104771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 07/31/2023] [Accepted: 08/10/2023] [Indexed: 08/22/2023]
Abstract
OBJECTIVES The aim was to describe the clinical characteristics of symptomatic anoproctitis and the occurrence of Chlamydia trachomatis (CT), Neisseria gonorrhoeae (NG) and Mycoplasma genitalium (MG) infections in a prospective cohort of MSM patients. METHODS From February 2018 to January 2020, all consecutive patients presenting at the Leopold Bellan Proctology Institute of Saint-Joseph Hospital, Paris, France with symptoms of anoproctitis were tested on rectal samples for C. trachomatis (CT), N. gonorrhoeae (NG), M. genitalium (MG). Clinical, microbiological, biological data, STI risk factors, medical history and treatments were collected. RESULTS Three hundred and sixty-five patients were included for suspected infective anoproctitis. CT was detected in 84/365 (23%) patients, NG in 45/365 (12%) and MG in 46/315 patients (15%), associated with macrolide resistance in 28/46 MG strains (61%). The most frequent symptoms were rectal pains, rectal bleeding, purulent discharge in 253 (79%), 191 (60%), and 164 (51%) of cases respectively. In comparison with MG infections, ulcerations, erythematous proctitis, rectorragia and false needs were more frequently described in CT infections, while purulent proctitis, functional pain and purulent discharge were more often observed in NG and CT anoproctitis. CONCLUSION We found a high prevalence rate of STIs due to CT, NG, while MG detection was associated with a high rate of macrolide resistance in a cohort of MSM patients. Our results confirm that in cases of symptomatic anoproctitis, MG should be tested in association with other STI pathogens.
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Affiliation(s)
- V Berti
- Clinical Microbiology Department, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - J Blondel
- Clinical Microbiology Department, Groupe Hospitalier Paris Saint-Joseph, Paris, France
| | - L Spindler
- Department of Medical-Surgical Proctology, Léopold Bellan Institute, GH Paris Saint-Joseph, Paris, France
| | - V de Parades
- Department of Medical-Surgical Proctology, Léopold Bellan Institute, GH Paris Saint-Joseph, Paris, France
| | - M Aubert
- Department of Medical-Surgical Proctology, Léopold Bellan Institute, GH Paris Saint-Joseph, Paris, France
| | - A Le Monnier
- Clinical Microbiology Department, Groupe Hospitalier Paris Saint-Joseph, Paris, France; Department of Medical-Surgical Proctology, Léopold Bellan Institute, GH Paris Saint-Joseph, Paris, France; Micalis Institute, Université Paris-Saclay, INRAE, AgroParisTech, Jouy-en-Josas, France
| | - J Lourtet-Hascoet
- Clinical Microbiology Department, Groupe Hospitalier Paris Saint-Joseph, Paris, France.
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Rodrigues R, Vieira-Baptista P, Catalão C, Borrego MJ, Sousa C, Vale N. Chlamydial and Gonococcal Genital Infections: A Narrative Review. J Pers Med 2023; 13:1170. [PMID: 37511783 PMCID: PMC10381338 DOI: 10.3390/jpm13071170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/18/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Sexually transmitted infections (STIs) constitute one of the leading causes of disease burden worldwide, leading to considerable morbidity, mortality, health expenditures, and stigma. Of note are the most common bacterial STIs, chlamydial and gonococcal infections, whose etiological agents are Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG), respectively. Despite being usually asymptomatic, in some cases these infections can be associated with long-term severe complications, such as pelvic inflammatory disease, chronic pelvic pain, infertility, ectopic pregnancy, and increased risk of other STIs acquisition. As the symptoms, when present, are usually similar in both infections, and in most of the cases these infections co-occur, the dual-test strategy, searching for both pathogens, should be preferred. In line with this, herein we focus on the main aspects of CT and NG infections, the clinical symptoms as well as the appropriate state-of-the-art diagnostic tests and treatment. Cost-effective strategies for controlling CT and NG infections worldwide are addressed. The treatment for both infections is based on antibiotics. However, the continuing global rise in the incidence of these infections, concomitantly with the increased risk of antibiotics resistance, leads to difficulties in their control, particularly in the case of NG infections. We also discuss the potential mechanism of tumorigenesis related to CT infections. The molecular bases of CT and NG infections are addressed, as they should provide clues for control or eradication, through the development of new drugs and/or effective vaccines against these pathogens.
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Affiliation(s)
- Rafaela Rodrigues
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
- CINTESIS@RISE, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal
- Molecular Diagnostics Laboratory, Unilabs Portugal, Centro Empresarial Lionesa Porto, Rua Lionesa, 4465-671 Leça do Balio, Portugal
| | - Pedro Vieira-Baptista
- Department of Gynecology-Obstetrics and Pediatrics, Faculdade de Medicina da Universidade do Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal
- Lower Genital Tract Unit, Centro Hospitalar de São João, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal
| | - Carlos Catalão
- Roche Sistemas de Diagnósticos, Estrada Nacional, 2720-413 Amadora, Portugal
| | - Maria José Borrego
- Laboratório Nacional de Referência das Infeções Sexualmente Transmissíveis, Instituto Nacional de Saúde Dr. Ricardo Jorge, Avenida Padre Cruz, 1649-016 Lisboa, Portugal
| | - Carlos Sousa
- Molecular Diagnostics Laboratory, Unilabs Portugal, Centro Empresarial Lionesa Porto, Rua Lionesa, 4465-671 Leça do Balio, Portugal
| | - Nuno Vale
- OncoPharma Research Group, Center for Health Technology and Services Research (CINTESIS), Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
- CINTESIS@RISE, Faculty of Medicine, University of Porto, Alameda Professor Hernâni Monteiro, 4200-319 Porto, Portugal
- Department of Community Medicine, Health Information and Decision (MEDCIDS), Faculty of Medicine, University of Porto, Rua Doutor Plácido da Costa, 4200-450 Porto, Portugal
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Villa L, Boga JA, Otero L, Vazquez F, Milagro A, Salmerón P, Vall-Mayans M, Maciá MD, Bernal S, Piñeiro L. Phenotypic and Genotypic Antimicrobial Susceptibility Testing of Chlamydia trachomatis Isolates from Patients with Persistent or Clinical Treatment Failure in Spain. Antibiotics (Basel) 2023; 12:975. [PMID: 37370294 DOI: 10.3390/antibiotics12060975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/23/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
The aim of this multicentre project (seven hospitals across the Spanish National Health Service) was to study the phenotypic and genotypic susceptibility of C. trachomatis to the main antimicrobials used (macrolides, doxycycline, and quinolones) in isolates from patients with clinical treatment failure in whom reinfection had been ruled out. During 2018-2019, 73 clinical isolates were selected. Sixty-nine clinical specimens were inoculated onto confluent McCoy cell monolayers for phenotypic susceptibility testing. The minimum inhibitory concentration for azithromycin and doxycycline was defined as the lowest concentration associated with an at least 95% reduction in inclusion-forming units after one passage in the presence of the antibiotic compared to the initial inoculum for each strain (control). Sequencing analysis was performed for the genotypic detection of resistance to macrolides, analysing mutations in the 23S rRNA gene (at positions 2057, 2058, 2059, and 2611), and quinolones, analysing a fragment of the gyrA gene, and searching for the G248T mutation (Ser83->Ile). For tetracyclines, in-house RT-PCR was used to test for the tet(C) gene. The phenotypic susceptibility testing was successful for 10 isolates. All the isolates had minimum inhibitory concentrations for azithromycin ≤ 0.125 mg/L and for doxycycline ≤ 0.064 mg/L and were considered sensitive. Of the 73 strains studied, no mutations were found at positions T2611C or G248T of the gyrA gene. We successfully sequenced 66 isolates. No macrolide resistance-associated mutations were found at positions 2057, 2058, 2059, or T2611C. None of the isolates carried the tet(C) gene. We found no evidence for genomic resistance in this large, clinically relevant dataset.
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Affiliation(s)
- Laura Villa
- Microbiology Department, Central University Hospital of Asturias and Health Research Institute of Asturias (ISPA), 33011 Oviedo, Spain
- Sexually Transmitted Infections Study Group of the Infectious Diseases and Clinical Microbiology Spanish Society (GEITS-SEIMC), 28003 Madrid, Spain
| | - José Antonio Boga
- Microbiology Department, Central University Hospital of Asturias and Health Research Institute of Asturias (ISPA), 33011 Oviedo, Spain
| | - Luis Otero
- Sexually Transmitted Infections Study Group of the Infectious Diseases and Clinical Microbiology Spanish Society (GEITS-SEIMC), 28003 Madrid, Spain
- Microbiology Department, Cabueñes University Hospital, and Health Research Institute of Asturias (ISPA), 33394 Gijón, Spain
| | - Fernando Vazquez
- Microbiology Department, Central University Hospital of Asturias and Health Research Institute of Asturias (ISPA), 33011 Oviedo, Spain
- Sexually Transmitted Infections Study Group of the Infectious Diseases and Clinical Microbiology Spanish Society (GEITS-SEIMC), 28003 Madrid, Spain
- Department of Functional Biology, Microbiology Area, Faculty of Medicine, University of Oviedo, 33003 Oviedo, Spain
| | - Ana Milagro
- Sexually Transmitted Infections Study Group of the Infectious Diseases and Clinical Microbiology Spanish Society (GEITS-SEIMC), 28003 Madrid, Spain
- Microbiology Department, Miguel Servet University Hospital, 50009 Zaragoza, Spain
| | - Paula Salmerón
- Sexually Transmitted Infections Study Group of the Infectious Diseases and Clinical Microbiology Spanish Society (GEITS-SEIMC), 28003 Madrid, Spain
- Microbiology Department, Vall d'Hebrón University Hospital, 08035 Barcelona, Spain
| | - Martí Vall-Mayans
- Sexually Transmitted Infections Study Group of the Infectious Diseases and Clinical Microbiology Spanish Society (GEITS-SEIMC), 28003 Madrid, Spain
- Vall'Hebron-Drassanes STI Unit, Infectious Diseases, Vall d'Hebrón University Hospital, 08035 Barcelona, Spain
| | - María Dolores Maciá
- Sexually Transmitted Infections Study Group of the Infectious Diseases and Clinical Microbiology Spanish Society (GEITS-SEIMC), 28003 Madrid, Spain
- Microbiology Department, Son Espases University Hospital, 07120 Palma de Mallorca, Spain
| | - Samuel Bernal
- Sexually Transmitted Infections Study Group of the Infectious Diseases and Clinical Microbiology Spanish Society (GEITS-SEIMC), 28003 Madrid, Spain
- Infectious Diseases and Microbiology Unit, Valme University Hospital, 41014 Seville, Spain
| | - Luis Piñeiro
- Sexually Transmitted Infections Study Group of the Infectious Diseases and Clinical Microbiology Spanish Society (GEITS-SEIMC), 28003 Madrid, Spain
- Microbiology Department, Donostia University Hospital-Biodonostia Health Research Institute, 20014 San Sebastian, Spain
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Berk Cam H. Treatment of Chlamydial Infections. Infect Dis (Lond) 2023. [DOI: 10.5772/intechopen.109648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Sexually transmitted infections (STIs) are a major health problem with an estimated burden of disease transmission as high as one million new cases per day globally. Chlamydia trachomatis, a member of the genus Chlamydia, is one of the most common and curable causative agents of STIs. C. trochomatis infections usually affect sexually active young adults and adolescents; and are composed of a broad spectrum of diseases varying from asymptomatic infection to severe genito-urinary infection leading to infertility and acute or chronic ocular infection (trachoma), which may result in blindness and pneumonia. Among the members of the genus Chlamydia, there are also two pathogenic species, Chlamydia pneumoniae and Chlamydia psittaci which are responsible for acute respiratory tract infections and febrile illness in humans. The incidence, pathophysiology, and diagnostic methods are discussed in detail in the previous chapters. The purpose of this chapter is to elucidate the management of infections due to C. trachomatis, C. pneumoniae, and C. psittaci including antibiotic susceptibility and resistance mechanisms, treatment recommendations for ocular infections, genito-urinary and respiratory tract infections, and management of sex partners, pregnant women, neonates, and children according to the latest data.
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Bogers S, Schim van der Loeff M, Boyd A, van Dijk N, Geerlings S, van Bergen J. Improving provider-initiated testing for HIV and other STI in the primary care setting in Amsterdam, the Netherlands: Results from a multifaceted, educational intervention programme. PLoS One 2023; 18:e0282607. [PMID: 36877664 PMCID: PMC9987818 DOI: 10.1371/journal.pone.0282607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/18/2023] [Indexed: 03/07/2023] Open
Abstract
BACKGROUND In the Netherlands, general practitioners (GPs) play a key role in HIV testing. However, the proportion of people diagnosed with late-stage HIV remains high, and opportunities for earlier diagnosis are being missed. We implemented an educational intervention to improve HIV and STI testing in primary care in Amsterdam, the Netherlands. METHODS GPs were invited to participate in an educational program between 2015 and 2020, which included repeat sessions using audit and feedback and quality improvement plans. Data on HIV, chlamydia and gonorrhoea testing by GPs were collected from 2011 through 2020. The primary outcome was HIV testing frequency, which was compared between GPs before and after participation using Poisson regression. Secondary outcomes were chlamydia and gonorrhoea testing frequencies, and positive test proportions. Additional analyses stratified by patient sex and age were done. FINDINGS GPs after participation performed 7% more HIV tests compared to GPs before participation (adjusted relative ratio [aRR] 1.07, 95%CI 1.04-1.09); there was no change in the proportion HIV positive tests (aRR 0.87, 95%CI 0.63-1.19). HIV testing increased most among patients who were female and ≤19 or 50-64 years old. After participation, HIV testing continued to increase (aRR 1.02 per quarter, 95%CI 1.01-1.02). Chlamydia testing by GPs after participation increased by 6% (aRR 1.06, 95%CI 1.05-1.08), while gonorrhoea testing decreased by 2% (aRR 0.98, 95%CI 0.97-0.99). We observed increases specifically in extragenital chlamydia and gonorrhoea testing. CONCLUSIONS The intervention was associated with a modest increase in HIV testing among GPs after participation, while the proportion positive HIV tests remained stable. Our results suggest that the intervention yielded a sustained effect.
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Affiliation(s)
- Saskia Bogers
- Amsterdam UMC Location University of Amsterdam, Internal Medicine, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Quality of Care, Amsterdam, The Netherlands
- * E-mail:
| | - Maarten Schim van der Loeff
- Amsterdam UMC Location University of Amsterdam, Internal Medicine, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, The Netherlands
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, The Netherlands
| | - Anders Boyd
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, The Netherlands
- Department of Infectious Diseases, Public Health Service of Amsterdam, Amsterdam, The Netherlands
- Stichting HIV Monitoring, Amsterdam, The Netherlands
| | - Nynke van Dijk
- Department of General Practice, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- Center of Expertise Urban Vitality, Faculty of Health, Amsterdam University of Applied Sciences, Amsterdam, The Netherlands
| | - Suzanne Geerlings
- Amsterdam UMC Location University of Amsterdam, Internal Medicine, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Infectious Diseases, Amsterdam, The Netherlands
- Amsterdam Public Health Research Institute, Quality of Care, Amsterdam, The Netherlands
| | - Jan van Bergen
- Department of General Practice, Amsterdam UMC Location University of Amsterdam, Amsterdam, The Netherlands
- STI AIDS Netherlands, Amsterdam, The Netherlands
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Perry MD, Jones S, Bertram A, de Salazar A, Barrientos-Durán A, Schiettekatte G, Lewinski M, Arcenas R, Hansra A, Njoya M, García F. The prevalence of Mycoplasma genitalium (MG) and Trichomonas vaginalis (TV) at testing centers in Belgium, Germany, Spain, and the UK using the cobas TV/MG molecular assay. Eur J Clin Microbiol Infect Dis 2023; 42:43-52. [PMID: 36369413 PMCID: PMC9816248 DOI: 10.1007/s10096-022-04521-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 11/04/2022] [Indexed: 11/13/2022]
Abstract
Mycoplasma genitalium (MG) and Trichomonas vaginalis (TV) can lead to long-term sequelae in males and females; however, global prevalence data vary between geographical regions, as these sexually transmitted infections are not included in routine screening. The objective of this study was to use the cobas® TV/MG assay to assess the point prevalence of TV and MG in specimens from men and women over a broad European geographical area. Urine, vaginal, endocervical, and rectal samples were collected from patients aged ≥ 18 years receiving Chlamydia trachomatis (CT) and/or Neisseria gonorrhoeae (NG) screening as per local standard of care at sites in Belgium, Germany, Spain, and the UK (Wales). Remnant samples were assessed using the cobas TV/MG assay. Analysis of 2795 samples showed that MG prevalence varied slightly across female sample types (range: 1.7-5.8%; p = 0.0042). MG prevalence was higher in male rectal samples (12.5%) than in male urine samples (3.9%; p < 0.0001). TV prevalence was low in male (0.8%; 12/1535) and female (1.3%; 16/1260) samples across all sites. Co-infection of TV/MG with CT or NG was 10.0% (19/190) and 9.6% (7/73), respectively, in both male and female samples. MG and TV prevalence rates were comparable to the published literature in Europe. MG prevalence was highest in male rectal samples; as rectal testing is an off-label use of the cobas TV/MG assay, the clinical utility of this assay for rectal testing should be further investigated.
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Affiliation(s)
- Michael D. Perry
- grid.241103.50000 0001 0169 7725Public Health Wales Microbiology, University Hospital of Wales, Heath Park, Cardiff, CF14 4XW UK
| | - Sophie Jones
- grid.241103.50000 0001 0169 7725Public Health Wales Microbiology, University Hospital of Wales, Heath Park, Cardiff, CF14 4XW UK
| | - Alexander Bertram
- Amedes MVZ Wagnerstibbe für Laboratoriumsmedizin, Hämostaseologie, Humangenetik und Mikrobiologie, Hannover, Germany
| | - Adolfo de Salazar
- grid.459499.cDepartment of Clinical Microbiology, Hospital Universitario Clínico San Cecilio, Instituto de Investigación Ibs, Granada, Spain
| | - Antonio Barrientos-Durán
- grid.459499.cDepartment of Clinical Microbiology, Hospital Universitario Clínico San Cecilio, Instituto de Investigación Ibs, Granada, Spain
| | | | - Michael Lewinski
- grid.418158.10000 0004 0534 4718Roche Molecular Systems, Inc., Pleasanton, CA USA
| | - Rodney Arcenas
- grid.418158.10000 0004 0534 4718Roche Molecular Systems, Inc., Pleasanton, CA USA
| | - Avneet Hansra
- grid.418158.10000 0004 0534 4718Roche Molecular Systems, Inc., Pleasanton, CA USA
| | - Merlin Njoya
- grid.418158.10000 0004 0534 4718Roche Molecular Systems, Inc., Pleasanton, CA USA
| | - Federico García
- grid.459499.cDepartment of Clinical Microbiology, Hospital Universitario Clínico San Cecilio, Instituto de Investigación Ibs, Granada, Spain ,grid.413448.e0000 0000 9314 1427CIBER de Enfermedades Infecciosas (CIBERINFEC), ISCIII, Madrid, Spain
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Huston WM, Lawrence A, Wee BA, Thomas M, Timms P, Vodstrcil LA, McNulty A, McIvor R, Worthington K, Donovan B, Phillips S, Chen MY, Fairley CK, Hocking JS. Repeat infections with chlamydia in women may be more transcriptionally active with lower responses from some immune genes. Front Public Health 2022; 10:1012835. [PMID: 36299763 PMCID: PMC9589431 DOI: 10.3389/fpubh.2022.1012835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/23/2022] [Indexed: 01/27/2023] Open
Abstract
Chlamydia trachomatis, the most common bacterial sexually transmitted infection worldwide, is responsible for considerable health burden due to its significant sequelae. There are growing concerns about chlamydial treatment and management due to widely documented increasing burden of repeat infections. In the current study, a cohort study design of 305 women with urogenital chlamydial infections demonstrated that 11.8% of women experienced repeat infections after treatment with azithromycin. The chlamydial DNA load measured by quantitative PCR was higher in women who experienced a repeat infection (p = 0.0097) and repeat infection was associated with sexual contact. There was no genomic or phenotypic evidence of azithromycin resistance within the chlamydial isolates. During repeat infection, or repeat positive tests during follow up, vaginal chlamydial gene expression (ompA, euo, omcB, htrA, trpAB) was markedly higher compared to baseline, and two of the selected immune genes analyzed had significantly lower expression at the time of repeat infection. Overall, there are two implications of these results. The results could be generalized to all recent infections, or repeat positive events, and indicate that chlamydial infections are have higher transcriptional activity of select genes early in the infection in women. Alternatively, after azithromycin treatment, repeat infections of Chlamydia may be more transcriptionally active at certain genes, and there may be post-treatment immunological alterations that interplay into repeat exposures establishing an active infection. The potential that recent infections may involve a higher level of activity from the organism may have implications for management by more regular testing of the most at risk women to reduce the risk of sequelae.
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Affiliation(s)
- Wilhelmina M. Huston
- Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia,*Correspondence: Wilhelmina M. Huston
| | - Amba Lawrence
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, QLD, Australia
| | - Bryan A. Wee
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, QLD, Australia
| | - Mark Thomas
- Faculty of Science, University of Technology Sydney, Ultimo, NSW, Australia
| | - Peter Timms
- Bioinnovation Centre, University of the Sunshine Coast, Sippy Downs, QLD, Australia
| | - Lenka A. Vodstrcil
- Melbourne Sexual Health Centre, Central Clinical School, Monash University, Carlton, VIC, Australia,Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Carlton, VIC, Australia
| | - Anna McNulty
- Sydney Sexual Health Centre, Sydney, NSW, Australia
| | - Ruthy McIvor
- Sydney Sexual Health Centre, Sydney, NSW, Australia
| | - Karen Worthington
- Melbourne Sexual Health Centre, Alfred Health, Carlton, VIC, Australia
| | - Basil Donovan
- Kirby Institute, University of New South Wales, Kensington, NSW, Australia
| | - Samuel Phillips
- Bioinnovation Centre, University of the Sunshine Coast, Sippy Downs, QLD, Australia
| | - Marcus Y. Chen
- Melbourne School of Population and Global Health, University of Melbourne, Carlton, VIC, Australia,Australia and Melbourne Sexual Health Centre, Carlton, VIC, Australia
| | | | - Jane S. Hocking
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Carlton, VIC, Australia,Jane S. Hocking
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Cox BK, Larson BK, Hutchings DA, Morgan M, Balzer BL, Waters KM. The Histopathology of Anorectal Neisseria gonorrhoeae Infection. Am J Clin Pathol 2022; 158:559-563. [PMID: 35938627 DOI: 10.1093/ajcp/aqac089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 06/07/2022] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES Neisseria gonorrhoeae infection of the anorectal tract is often asymptomatic and infrequently biopsied, but pathologists can be tasked with identifying the histologic features of possible infection. The study was undertaken to better characterize clinical and morphologic features of confirmed anorectal gonococcal infection. METHODS From 2011 to 2020, 201 positive gonococcal nucleic acid amplification testing samples from 174 patients collected from the distal colorectum and/or anus were matched to eight patients with concurrent biopsy specimens of the distal anorectum. Complete demographic, clinical, and infectious information was collected for each biopsied patient. The histomorphologic features of each biopsy were systematically tabulated. RESULTS All eight gonococcal cases were obtained from men who have sex with men. Each case showed at least mild acute inflammation with moderate activity identified in one case with concurrent cytomegalovirus infection. Intense lymphoplasmacytic infiltration was not commonly seen (two of eight). Half of the cases showed mucosal ulceration, and seven of eight cases demonstrated lymphoid aggregates. CONCLUSIONS The microscopic features are mild compared with other well-described types of infectious proctitis, with most cases displaying mild acute inflammation and scattered lymphoid aggregates. These findings highlight the importance of obtaining a complete patient history and recommending additional infectious workup even when only subtle changes are present.
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Affiliation(s)
- Brian K Cox
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Brent K Larson
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Danielle A Hutchings
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Margie Morgan
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Bonnie L Balzer
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Kevin M Waters
- Department of Pathology and Laboratory Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
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11
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Commentary. Ann Emerg Med 2022; 80:71-73. [PMID: 35717114 DOI: 10.1016/j.annemergmed.2022.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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12
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Geba M, Powers S, Williams B, Dort KR, Rogawski McQuade ET, McManus KA. A Missed Opportunity: Extragenital Screening for Gonorrhea and Chlamydia Sexually Transmitted Infections in People with HIV in a Southeastern Ryan White HIV/AIDS Program Clinic Setting. Open Forum Infect Dis 2022; 9:ofac322. [PMID: 35899288 PMCID: PMC9310267 DOI: 10.1093/ofid/ofac322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 06/30/2022] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Guidelines recommend annual screening for gonorrhea/chlamydia in sexually active people with HIV at multiple sites (urogenital, oropharyngeal, rectal). In the first year of multisite screening at our Ryan White HIV/AIDS Program clinic, we studied (1) sexual history documentation rate, (2) sexually transmitted infection (STI) screening rate, (3) characteristics associated with STIs, (4) the percentage of extragenital STIs that would have been missed without multisite screening.
Methods
Participants were ≥14 years old with ≥1 in-person medical visit at our clinic in 2019. Descriptive analyses were performed, and adjusting for number of sites tested, a log-binomial model was used to estimate the association between characteristics and STI diagnosis in men.
Results
In this cohort (n = 857), 21% had no sexual history recorded. Almost all STI diagnoses were among males (99.3%). 68% (253/375) received appropriate urogenital testing, 63% (85/134) received appropriate oropharyngeal testing, and 69% (72/105) received appropriate rectal testing. In male participants with ≥1 STI test (n = 347), Hispanic ethnicity and detectable HIV viral load were associated with an STI diagnosis. Of those diagnosed with an STI who had multisite testing, 96% (n = 25/26) were positive only at an extragenital site.
Conclusions
Screening rates were similar across all anatomical sites indicating no obvious bias against extragenital testing. In males, STIs were more frequently diagnosed in people who identify as Hispanic and those with detectable viral loads which may indicate more condomless sex in these populations. Based on infections detected exclusively at extragenital sites, our clinic likely underdiagnosed STIs prior to implementation of multisite screening.
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Affiliation(s)
- Maria Geba
- Department of Medicine, University of Virginia , Charlottesville, VA , USA
| | - Samuel Powers
- Division of Infectious Diseases and International Health, University of Virginia , Charlottesville, VA , USA
| | - Brooke Williams
- Division of Infectious Diseases and International Health, University of Virginia , Charlottesville, VA , USA
| | - Kathryn R Dort
- Division of Infectious Diseases and International Health, University of Virginia , Charlottesville, VA , USA
| | - Elizabeth T Rogawski McQuade
- Division of Infectious Diseases and International Health, University of Virginia , Charlottesville, VA , USA
- Public Health Sciences, University of Virginia , Charlottesville, VA , USA
| | - Kathleen A McManus
- Division of Infectious Diseases and International Health, University of Virginia , Charlottesville, VA , USA
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13
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Sexually Transmitted Infections Treatment Guidelines, 2021. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Gassowski M, Poethko-Müller C, Schlaud M, Sailer A, Dehmel K, Bremer V, Dudareva S, Jansen K, Baier M, Straube E, Baillot A, Bartsch P, Brüning T, Cremer J, Dallügge-Tamm H, Gröning A, Eicke S, Emrich D, Fritsche G, Gjavotchanoff R, Gohl P, Götzrath M, Meye A, Ehrhard I, Köpke B, Henrich B, Kastilan C, Lehmann S, Märzacker A, Miller B, Mohrmann G, Pache C, Pfüller R, Tiemann C, Wisplinghoff H, Müller T, Aepinus C. Prevalence of Chlamydia trachomatis in the general population in Germany – a triangulation of data from two population-based health surveys and a laboratory sentinel system. BMC Public Health 2022; 22:1107. [PMID: 35659641 PMCID: PMC9164541 DOI: 10.1186/s12889-022-13456-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 05/18/2022] [Indexed: 11/30/2022] Open
Abstract
Background Chlamydia trachomatis (chlamydia) is a common, frequently asymptomatic, sexually transmitted infection. It can result in severe sequelae, such as ectopic pregnancy and infertility. In Germany, chlamydia is not notifiable. An opportunistic screening program for women < 25 years was introduced in 2008. The aim of this research was to triangulate different data sources to describe the epidemiological situation of chlamydia in Germany and to investigate whether the current target group of the chlamydia screening program aligns with these findings. Methods Urine specimens from participants from population-based health examination surveys of children (2014–17) and adults (2008–11) were tested for chlamydia, using nucleic acid amplification testing. These data were used to generate weighted chlamydia prevalence estimates by age group and sex. Data from a nationwide chlamydia laboratory sentinel system (2014–16) were used to calculate the positive proportion among individuals tested for chlamydia by age, sex and test reason. Results Using data from the population-based surveys, we found a chlamydia prevalence estimate of 2.8% (95% confidence interval (CI) 1.0–7.5%) among all 15- to 17-year-old girls and of 9.6% (95% CI 0.0–23) among those reporting to be sexually active. In adult women, we found the highest prevalence among 18- to 24-year-olds (all: 2.3%; 95% CI 1.0–5.3%; sexually active: 3.1%; 95% CI 1.3–7.0%). In adult men, we found the highest prevalence among 25- to 29-year-olds (all: 3.5%; 95% CI 1.6–7.7%; sexually active: 3.3%; 95% CI 1.3–7.8%). Data from the chlamydia laboratory sentinel showed the highest positive proportion among those opportunistically screened in 19-year-old women (6.1%; 95%- CI 5.9–6.4%), among those screened due to pregnancy in 15-year-old girls (10%; 95% CI 8.5–12%), and among those tested due to symptoms or a positive partner in 19-year-old women (10%; 95% CI 9.8–11%) and 19-year-old men (24%; 95% CI 22–26%). Conclusions Chlamydia seems to mainly affect adolescents and young adults in Germany, with similar overall prevalence in men and women, but with slightly different age distributions. Women at highest risk of chlamydia are covered by the current screening program but given the on-going discussions in high-income countries on cost-effectiveness and benefit-to-harm ratio of these programs, the program-aim needs reconsideration.
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15
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Niedlich C, Steffens MC, Dieckmann J. Reactions and Feelings to a Close Relative's Coming Out in a Heterosexual Relationship. Front Psychol 2022; 13:836428. [PMID: 35602725 PMCID: PMC9121090 DOI: 10.3389/fpsyg.2022.836428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 03/14/2022] [Indexed: 11/30/2022] Open
Abstract
Which different feelings and reactions do different family members show if an adult family member who has long been perceived as heterosexual discloses their sexual identity as lesbian, gay, or bisexual (LGB)? Previous studies have investigated reactions of spouses and sometimes children in the United States. This article describes the findings of qualitative interviews and a German-language quantitative survey (N = 188) in which family members were asked about their emotions, experiences during the coming out process, and their use of support options. The samples were recruited via different LGB+ online forums and organizations in Germany, Austria, and Switzerland (age M = 44.08). The results demonstrate that a coming out after years of a heterosexual biography and family life affects adults' parents and siblings in addition to spouses and children. Siblings were perceived as a supportive group of family members showing calm and mostly positive reactions. Parents mainly reported surprise but also showed on the one hand interest in supporting their children in the coming out process; on the other hand, we find also evidence for negative reactions including rejecting behavior. Children's coping and well-being depended on the time that had passed since the coming out and their age at the time of the coming out. Spouses felt shocked, angry, and the ground was pulled from under their feet. Comparing the perspectives of these groups of family members, differences between them, and their specific needs are discussed. Practical implications are derived from the support options mentioned, and range from information from books, the internet to professional advice. Spouses report the need of diverse support options, whereas other family members ask friends and other family members for support. Forums, counseling and the possibility to exchange were perceived as a support but were more accessible for women than for men. They provide the chance for a communicative exchange before the stress becomes too strong.
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Affiliation(s)
- Claudia Niedlich
- Department of Social, Environmental and Economic Psychology, University of Koblenz and Landau, Landau, Germany
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16
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Barbee LA, St Cyr SB. Management of Neisseria gonorrhoeae in the United States: Summary of Evidence From the Development of the 2020 Gonorrhea Treatment Recommendations and the 2021 Centers for Disease Control and Prevention Sexually Transmitted Infection Treatment Guidelines. Clin Infect Dis 2022; 74:S95-S111. [PMID: 35416971 DOI: 10.1093/cid/ciac043] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Neisseria gonorrhoeae has developed resistance to all first-line recommended therapies, making gonococcal antimicrobial resistance a major public health concern given limited antibiotic options currently and an even smaller antimicrobial development pipeline. Since the release of the Centers for Disease Control and Prevention (CDC) 2015 STD Treatment Guidelines, azithromycin, part of the 2015 dual-drug treatment regimen, has had a rapid rise in resistance. The 2020 CDC Gonorrhea Treatment Recommendations and the 2021 Sexually Transmitted Infections (STI) Treatment Guidelines were developed weighing the priorities of treating the individual, protecting the population, and preventing antimicrobial resistance. METHODS Gonorrhea subject matter experts (SME) generated 8 key questions and conducted a literature review of updated data from 2013 to 2019 on gonorrhea antimicrobial resistance, treatment failures, clinical trials, and other key topics. More than 2200 abstracts were assessed, and 248 clinically relevant articles were thoroughly reviewed. SMEs also evaluated N gonorrhoeae antimicrobial resistance data from the Gonococcal Isolate Surveillance Project (GISP). EVIDENCE Although there have been reports of ceftriaxone treatment failures internationally, GISP data suggest that ceftriaxone minimal inhibitory concentrations (MICs) have remained stable in the United States, with < 0.1% exhibiting an "alert value" MIC (> 0.25 mcg/mL). However, GISP documented a rapid rise in the proportion of isolates with an elevated MIC (≥ 2.0 mcg/mL) to azithromycin-nearly 5% in 2018. At the same time, new pharmacokinetic/pharmacodynamic data are available, and there is greater recognition of the need for antimicrobial stewardship. SUMMARY The 2021 CDC STI Treatment Guidelines now recommend 500mg ceftriaxone intramuscularly once for the treatment of uncomplicated gonorrhea at all anatomic sites. If coinfection with chlamydia has not been excluded, cotreatment with doxycycline 100mg twice daily for 7 days should be added. Few alternative therapies exist for persons with cephalosporin allergies; there are no recommended alternative therapies for N gonorrhoeae infection of the throat.
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Affiliation(s)
- Lindley A Barbee
- Division of STD Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.,University of Washington, Seattle, Washington, USA.,Public Health - Seattle & King County HIV/STD Program, Seattle, Washington, USA
| | - Sancta B St Cyr
- Division of STD Prevention, Centers for Disease Control and Prevention, Atlanta, Georgia, USA
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17
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Geisler WM, Hocking JS, Darville T, Batteiger BE, Brunham RC. 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. Clin Infect Dis 2022; 74:S112-S126. [PMID: 35416965 PMCID: PMC9006972 DOI: 10.1093/cid/ciac126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
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.
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Affiliation(s)
- William M Geisler
- Division of Infectious Diseases, Department of Medicine and Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jane S Hocking
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Toni Darville
- Department of Pediatrics and Department of Microbiology and Immunology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Byron E Batteiger
- Department of Medicine and Department of Microbiology and Immunology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Robert C Brunham
- Vaccine Research Laboratory, University of British Columbia Centre for Disease Control, Vancouver, Canada
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18
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Dukers-Muijrers NHTM, Evers YJ, Hoebe CJPA, Wolffs PFG, de Vries HJC, Hoenderboom B, van der Sande MAB, Heijne J, Klausner JD, Hocking JS, van Bergen J. Controversies and evidence on Chlamydia testing and treatment in asymptomatic women and men who have sex with men: a narrative review. BMC Infect Dis 2022; 22:255. [PMID: 35287617 PMCID: PMC8922931 DOI: 10.1186/s12879-022-07171-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 02/03/2022] [Indexed: 11/19/2022] Open
Abstract
Background Chlamydia trachomatis (CT) is the most common bacterial sexually transmitted infection (STI) worldwide. CT is mainly asymptomatic. Test-and-treat strategies are widely implemented to prevent transmission and complications. Strategies are not without controversy in asymptomatic women and men who have sex with men (MSM). Concerns are emerging to test and treat asymptomatic persons for urogenital CT (‘Controversy 1’) and pharyngeal or rectal CT (‘Controversy 2’), whereby testing symptomatic persons is not under debate. Opposed views in CT treatment involve using azithromycin versus doxycycline (‘Controversy 3’). The objective of this review is to provide coverage of these public health and clinical controversies by reviewing the current scientific evidence. Methods A literature search was performed using PubMed for relevant publications between 2018 and September 2021, and iterative retrieval of additional relevant publications. Results Controversy 1. In women, the majority of asymptomatic CT are at the urogenital site, and detections mostly include viable CT. CT easily transmits to a partner and potentially also between the vaginal and rectal areas; the clinical impact of urogenital CT is established, although risks for adverse outcomes are uncertain. Wide-scale testing in asymptomatic women has not resulted in reduced prevalence. In MSM, evidence for the clinical impact of asymptomatic urogenital CT is lacking. Controversy 2. Rectal CT is common in women diagnosed with urogenital CT, but the clinical impact of asymptomatic rectal CT is uncertain. In MSM, rectal CT is common, and most CT infections are at the rectal site, yet the risk of longer term complications is unknown. In both sexes, pharyngeal CT is uncommon and has no documented clinical impact. Controversy 3. In the treatment of rectal CT, doxycycline has superior effectiveness to azithromycin. Evidence has also accumulated on the harms of test-and-treat strategies. Conclusions Current practices vary widely, from widescale test-and-treat approaches to more individual patient- and partner-level case management. Choosing which asymptomatic people to test at what anatomic site, and whether to test or not, requires an urgent (re-)definition of the goals of testing and treating asymptomatic persons. Treatment guidelines are shifting toward universal doxycycline use, and clinical practice now faces the challenge of implementation. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-022-07171-2. Test-and-treat is a key strategy in the control of Chlamydia trachomatis (CT). We discuss recent controversies and present scientific evidence regarding urogenital, rectal, and pharyngeal CT test-and-treat strategies in women and in men who have sex with men (MSM). This should inform best practices for the prevention and management of the most common bacterial sexually transmitted infection (STI) worldwide.
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Affiliation(s)
- Nicole H T M Dukers-Muijrers
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, PO Box 33, 6400 AA, Heerlen, The Netherlands. .,Department of Health Promotion, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands.
| | - Ymke J Evers
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, PO Box 33, 6400 AA, Heerlen, The Netherlands.,Department of Social Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Christian J P A Hoebe
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, PO Box 33, 6400 AA, Heerlen, The Netherlands.,Department of Social Medicine, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands.,Department of Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Petra F G Wolffs
- Department of Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Henry J C de Vries
- Epidemiology and Surveillance Unit, Centre for Infectious Disease Control, National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands.,Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, The Netherlands.,Department of Dermatology, Amsterdam Infection & Immunity Institute (AII), Amsterdam University Medical Center (UMC), Amsterdam, The Netherlands
| | - Bernice Hoenderboom
- Epidemiology and Surveillance Unit, Centre for Infectious Disease Control, National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands.,Institute for Public Health Genomics, Genetics & Cell Biology, Maastricht University, Faculty of Health and Medicine and Life Sciences, Maastricht, The Netherlands
| | - Marianne A B van der Sande
- Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium.,Global Health, Julius Centre for Health Sciences and Primary Care, UMC Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Janneke Heijne
- Epidemiology and Surveillance Unit, Centre for Infectious Disease Control, National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Jeffrey D Klausner
- Department of Population and Public Health Sciences, Keck School of Medicine of the University of Southern California, Los Angeles, USA
| | - Jane S Hocking
- Melbourne School of Population and Global Health, University of Melbourne, Parkville, Victoria, Australia
| | - Jan van Bergen
- Epidemiology and Surveillance Unit, Centre for Infectious Disease Control, National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands.,Department of General Practice, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands.,STI AIDS Netherlands, Amsterdam, The Netherlands
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Sharma J, Gupta K, Schwebke JR, Geisler WM, Muzny CA. Association of Bacterial Vaginosis With Higher Vaginal Indole Levels. Sex Transm Dis 2022; 49:e53-e55. [PMID: 34561371 DOI: 10.1097/olq.0000000000001564] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
ABSTRACT We adapted a simple hydroxylamine-based indole assay to detect indole from stored vaginal swab specimens from women with and without bacterial vaginosis (BV). Women with BV had significantly higher vaginal indole levels compared with women without BV (6451.5 vs 5632.4 μM; P = 0.01), suggesting that indole-producing bacteria are a component of BV.
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Affiliation(s)
- Jyoti Sharma
- From the Division of Infectious Diseases, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL
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20
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Multicenter comparison of nucleic acid amplification tests for the diagnosis of rectal and oropharyngeal Chlamydia trachomatis and Neisseria gonorrhoeae infection. J Clin Microbiol 2021; 60:e0136321. [PMID: 34731020 PMCID: PMC8769746 DOI: 10.1128/jcm.01363-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Research using nucleic acid amplification tests (NAATs) have repeatedly found rectal and oropharyngeal infections with Chlamydia trachomatis and Neisseria gonorrhoeae to be common and potentially more difficult to treat than genital infections. Unfortunately, public health and patient care efforts have been hampered by the lack of FDA-cleared NAATs with claims for anorectal or oropharyngeal samples. At the time of the initiation of this study, no commercially available assays had these claims. We formed a novel partnership among academic institutions and diagnostic manufacturers to address this public health need. From May 2018 through August 2019 we recruited 1108 women, 1256 men and 26 transgender persons each of whom provided 3 anal and 3 oropharyngeal swab specimens. The 3 anal swabs were pooled into a single transport tube as were the 3 oropharyngeal swabs. The performance of each of three study assays was estimated by comparison to the composite result and relative to one another. Percent positivity for chlamydia was 5.9 and 1.2% from anal and oropharyngeal specimens, respectively compared to 4.2 and 4.1% for gonorrhea. Sensitivity for chlamydia detection ranged from 81.0-95.1% and 82.8-100% for anal and oropharyngeal specimens, respectively. Gonorrhea sensitivity ranged from 85.9-99.0% and 74.0-100% for anal and oropharyngeal samples, respectively. Specificity estimates were ≥ 98.9% for all assays, organisms and sample types. Although there was heterogeneity between sensitivity estimates, these assays offer better ability to detect extra genital infections than culture and potential solutions for providing appropriate sexual healthcare for populations in which these infections are of concern.
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21
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Impact of the CDC 2021 Sexually Transmitted Infection Guideline Update on Emergency Medicine. CURRENT EMERGENCY AND HOSPITAL MEDICINE REPORTS 2021. [DOI: 10.1007/s40138-021-00238-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Workowski KA, Bachmann LH, Chan PA, Johnston CM, Muzny CA, Park I, Reno H, Zenilman JM, Bolan GA. Sexually Transmitted Infections Treatment Guidelines, 2021. MMWR Recomm Rep 2021; 70:1-187. [PMID: 34292926 PMCID: PMC8344968 DOI: 10.15585/mmwr.rr7004a1] [Citation(s) in RCA: 767] [Impact Index Per Article: 255.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
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.
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23
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Lau A, Kong FYS, Fairley CK, Templeton DJ, Amin J, Phillips S, Law M, Chen MY, Bradshaw CS, Donovan B, McNulty A, Boyd MA, Timms P, Chow EPF, Regan DG, Khaw C, Lewis DA, Kaldor J, Ratnayake M, Carvalho N, Hocking JS. Azithromycin or Doxycycline for Asymptomatic Rectal Chlamydia trachomatis. N Engl J Med 2021; 384:2418-2427. [PMID: 34161706 DOI: 10.1056/nejmoa2031631] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Rectal chlamydia is a common bacterial sexually transmissible infection among men who have sex with men. Data from randomized, controlled trials are needed to guide treatment. METHODS In this double-blind trial conducted at five sexual health clinics in Australia, we randomly assigned men who have sex with men and who had asymptomatic rectal chlamydia to receive doxycycline (100 mg twice daily for 7 days) or azithromycin (1-g single dose). Asymptomatic chlamydia was selected as the trial focus because more than 85% of men with rectal chlamydia infection are asymptomatic, and clinical guidelines recommend a longer treatment course for symptomatic infection. The primary outcome was a negative nucleic acid amplification test for rectal chlamydia (microbiologic cure) at 4 weeks. RESULTS From August 2016 through August 2019, we enrolled 625 men (314 in the doxycycline group and 311 in the azithromycin group). Primary outcome data were available for 290 men (92.4%) in the doxycycline group and 297 (95.5%) in the azithromycin group. In the modified intention-to-treat population, a microbiologic cure occurred in 281 of 290 men (96.9%; 95% confidence interval [CI], 94.9 to 98.9) in the doxycycline group and in 227 of 297 (76.4%; 95% CI, 73.8 to 79.1) in the azithromycin group, for an adjusted risk difference of 19.9 percentage points (95% CI, 14.6 to 25.3; P<0.001). Adverse events that included nausea, diarrhea, and vomiting were reported in 98 men (33.8%) in the doxycycline group and in 134 (45.1%) in the azithromycin group (risk difference, -11.3 percentage points; 95% CI, -19.5 to -3.2). CONCLUSIONS A 7-day course of doxycycline was superior to single-dose azithromycin in the treatment of rectal chlamydia infection among men who have sex with men. (Funded by the National Health and Medical Research Council; RTS Australian New Zealand Clinical Trials Registry number, ACTRN12614001125617.).
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Affiliation(s)
- Andrew Lau
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Fabian Y S Kong
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Christopher K Fairley
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - David J Templeton
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Janaki Amin
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Samuel Phillips
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Matthew Law
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Marcus Y Chen
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Catriona S Bradshaw
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Basil Donovan
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Anna McNulty
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Mark A Boyd
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Peter Timms
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Eric P F Chow
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - David G Regan
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Carole Khaw
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - David A Lewis
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - John Kaldor
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Mahesh Ratnayake
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Natalie Carvalho
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
| | - Jane S Hocking
- From the University of Melbourne (A.L., F.Y.S.K., S.P., E.P.F.C., N.C., J.S.H.), the Melbourne Sexual Health Centre (C.K.F., M.Y.C., C.S.B., E.P.F.C., J.S.H.), and Monash University (C.K.F., M.Y.C., C.S.B., E.P.F.C.), Melbourne, VIC, Macquarie University, Macquarie, NSW (J.A.), Central Clinical School, Faculty of Medicine and Health, University of Sydney (D.J.T.), Sydney Sexual Health Centre (A.M., B.D.), and the School of Population Health (A.M.) and the Kirby Institute (D.J.T., M.L., B.D., D.G.R., J.K., J.A.), University of New South Wales, Sydney, the Department of Sexual Health Medicine and Sexual Assault Medicine, Sydney Local Health District, Camperdown, NSW (D.J.T.), Western Sydney Sexual Health Centre, Parramatta, NSW, and Westmead Clinical School, University of Sydney, Westmead, NSW (D.A.L.), the Adelaide Sexual Health Centre (C.K., M.R.) and the University of Adelaide (M.A.B.), Adelaide, SA, and the University of the Sunshine Coast, Sippy Downs, QLD (P.T.) - all in Australia
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Berry SA, Ghanem KG. Licensing Nucleic Acid Amplification Tests for Extragenital Gonorrhea and Chlamydia: Innovative Science and a Call to Arms. Clin Infect Dis 2021; 71:2323-2325. [PMID: 31872856 DOI: 10.1093/cid/ciz1110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 11/09/2019] [Indexed: 11/13/2022] Open
Affiliation(s)
- Stephen A Berry
- Department of Medicine, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Khalil G Ghanem
- Department of Medicine, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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van Liere GAFS, Dukers-Muijrers NHTM, Kuizenga-Wessel S, Götz HM, Hoebe CJPA. What Is the Optimal Testing Strategy for Oropharyngeal Neisseria gonorrhoeae in Men Who Have Sex With Men? Comparing Selective Testing Versus Routine Universal Testing From Dutch Sexually Transmitted Infection Clinic Data (2008-2017). Clin Infect Dis 2021; 71:944-951. [PMID: 31556949 DOI: 10.1093/cid/ciz964] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 09/26/2019] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Most oropharyngeal Neisseria gonorrhoeae infections are asymptomatic, and many infections remain undetected, creating a reservoir for ongoing transmission and potential drug resistance. It is unclear what the optimal testing policy is in men who have sex with men (MSM), as routine universal testing data are lacking. METHODS Surveillance data from all Dutch sexually transmitted infection (STI) clinics between 2008 and 2017 were used (N = 271 242 consultations). Oropharyngeal testing policy was defined as routine universal testing when ≥85% of consultations included oropharyngeal testing or as selective testing (<85% tested). Independent risk factors for oropharyngeal N. gonorrhoeae were assessed among MSM routinely universally screened using backward multivariable logistic regression analyses. RESULTS Routine universal testing was performed in 90% (238 619/265 127) of consultations. Prevalence was higher using routine universal testing (5.5%; 95% CI, 5.4-5.6; 12 769/233 476) than with selective testing (4.7%; 95% CI, 4.4-5.0; 799/17 079; P < .001). Proportions of oropharyngeal-only infections were 55% and 47%, respectively. Independent risk factors were age <31 years (OR, 2.1; 95% CI, 1.9-2.3), age 31-43 years (OR, 1.7; 95% CI, 1.6-1.9, compared with >43 years), being notified for any STI (OR, 2.0; 95% CI, 1.9-2.1), concurrent urogenital N. gonorrhoeae (OR, 2.4; 95% CI, 2.1-2.7), and concurrent anorectal N. gonorrhoeae (OR, 11.4; 95% CI, 10.6-12.3). When using any of the risk factors age, notified, or oral sex as testing indicators, 98.4% (81 022/82 332) of MSM would be tested, finding 99.5% (4814/4838) of infections. CONCLUSIONS Routine universal testing detected more oropharyngeal N. gonorrhoeae infections than selective testing, of which more than half would be oropharyngeal only. Using independent risk factors as testing indicator is not specific. Therefore, routine universal oropharyngeal testing in MSM is feasible and warranted, as currently advised in most guidelines.
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Affiliation(s)
- Geneviève A F S van Liere
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands.,Department of Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | - Nicole H T M Dukers-Muijrers
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands.,Department of Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
| | - Sophie Kuizenga-Wessel
- Department of Sexual Health, Public Health Service Haaglanden, The Hague, The Netherlands
| | - Hannelore M Götz
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, The Netherlands.,Department of Infectious Disease Control, Municipal Public Health Service Rotterdam-Rijnmond, Rotterdam, The Netherlands.,Department of Public Health, Erasmus MC-University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Christian J P A Hoebe
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands.,Department of Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands
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Pillay J, Wingert A, MacGregor T, Gates M, Vandermeer B, Hartling L. Screening for chlamydia and/or gonorrhea in primary health care: systematic reviews on effectiveness and patient preferences. Syst Rev 2021; 10:118. [PMID: 33879251 PMCID: PMC8056106 DOI: 10.1186/s13643-021-01658-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 03/31/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND We conducted systematic reviews on the benefits and harms of screening compared with no screening or alternative screening approaches for Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) in non-pregnant sexually active individuals, and on the relative importance patients' place on the relevant outcomes. Findings will inform recommendations by the Canadian Task Force on Preventive Health Care. METHODS We searched five databases (to January 24, 2020), trial registries, conference proceedings, and reference lists for English and French literature published since 1996. Screening, study selection, and risk of bias assessments were independently undertaken by two reviewers, with consensus for final decisions. Data extraction was conducted by one reviewer and checked by another for accuracy and completeness. Meta-analysis was conducted where appropriate. We used the GRADE approach to rate the certainty of the evidence. The Task Force and content experts provided input on determining thresholds for important effect sizes and on interpretation of findings. RESULTS Of 41 included studies, 17 and 11 reported on benefits and harms of screening, respectively, and 14 reported on patient preferences. Universal screening for CT in general populations 16 to 29 years of age, using population-based or opportunistic approaches achieving low screening rates, may make little-to-no difference for a female's risk of pelvic inflammatory disease (PID) (2 RCTs, n=141,362; 0.3 more in 1000 [7.6 fewer to 11 more]) or ectopic pregnancy (1 RCT, n=15,459; 0.20 more per 1000 [2.2 fewer to 3.9 more]). It may also not make a difference for CT transmission (3 RCTs, n=41,709; 3 fewer per 1000 [11.5 fewer to 6.9 more]). However, benefits may be achieved for reducing PID if screening rates are increased (2 trials, n=30,652; 5.7 fewer per 1000 [10.8 fewer to 1.1 more]), and for reducing CT and NG transmission when intensely screening high-prevalence female populations (2 trials, n=6127; 34.3 fewer per 1000 [4 to 58 fewer]; NNS 29 [17 to 250]). Evidence on infertility in females from CT screening and on transmission of NG in males and both sexes from screening for CT and NG is very uncertain. No evidence was found for cervicitis, chronic pelvic pain, or infertility in males from CT screening, or on any clinical outcomes from NG screening. Undergoing screening, or having a diagnosis of CT, may cause a small-to-moderate number of people to experience some degree of harm, mainly due to feelings of stigmatization and anxiety about future infertility risk. The number of individuals affected in the entire screening-eligible population is likely smaller. Screening may make little-to-no difference for general anxiety, self-esteem, or relationship break-up. Evidence on transmission from studies comparing home versus clinic screening is very uncertain. Four studies on patient preferences found that although utility values for the different consequences of CT and NG infections are probably quite similar, when considering the duration of the health state experiences, infertility and chronic pelvic pain are probably valued much more than PID, ectopic pregnancy, and cervicitis. How patients weigh the potential benefits versus harms of screening is very uncertain (1 survey, 10 qualitative studies); risks to reproductive health and transmission appear to be more important than the (often transient) psychosocial harms. DISCUSSION Most of the evidence on screening for CT and/or NG offers low or very low certainty about the benefits and harms. Indirectness from use of comparison groups receiving some screening, incomplete outcome ascertainment, and use of outreach settings was a major contributor to uncertainty. Patient preferences indicate that the potential benefits from screening appear to outweigh the possible harms. Direct evidence about which screening strategies and intervals to use, which age to start and stop screening, and whether screening males in addition to females is necessary to prevent clinical outcomes is scarce, and further research in these areas would be informative. Apart from the evidence in this review, information on factors related to equity, acceptability, implementation, cost/resources, and feasibility will support recommendations made by the Task Force. SYSTEMATIC REVIEW REGISTRATION International Prospective Register of Systematic Reviews (PROSPERO), registration number CRD42018100733 .
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Affiliation(s)
- Jennifer Pillay
- Alberta Research Centre for Health Evidence, Faculty of Medicine and Dentistry, University of Alberta, 11405 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada.
| | - Aireen Wingert
- Alberta Research Centre for Health Evidence, Faculty of Medicine and Dentistry, University of Alberta, 11405 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada
| | - Tara MacGregor
- Alberta Research Centre for Health Evidence, Faculty of Medicine and Dentistry, University of Alberta, 11405 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada
| | - Michelle Gates
- Alberta Research Centre for Health Evidence, Faculty of Medicine and Dentistry, University of Alberta, 11405 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada
| | - Ben Vandermeer
- Alberta Research Centre for Health Evidence, Faculty of Medicine and Dentistry, University of Alberta, 11405 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada
| | - Lisa Hartling
- Alberta Research Centre for Health Evidence, Faculty of Medicine and Dentistry, University of Alberta, 11405 87 Avenue, Edmonton, Alberta, T6G 1C9, Canada
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Update your "sore throat" differential list: A case report and discussion of oral chlamydia. J Am Assoc Nurse Pract 2021; 33:1261-1264. [PMID: 33731559 DOI: 10.1097/jxx.0000000000000585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 01/11/2021] [Indexed: 11/27/2022]
Abstract
ABSTRACT There has been an exponential increase in sexually transmitted infections (STIs) in the United States, causing the Centers for Disease Control and Prevention to declare an epidemic. Current evidence demonstrates that extragenital STIs of the oropharynx and rectum are often asymptomatic and may not be associated with concurrent positive urogenital infections. As a result, these infections are often missed in primary care. Furthermore, guidelines only recommend extragenital site testing in men who have sex with men, excluding oropharyngeal chlamydia, despite evidence that extragenital STIs are occurring in other high-risk populations as well. A case report is provided to enhance primary health care providers' knowledge of extragenital STIs and promote early recognition and testing to improve patient outcomes.
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Adoptive Transfer of Group 3-Like Innate Lymphoid Cells Restores Mouse Colon Resistance to Colonization of a Gamma Interferon-Susceptible Chlamydia muridarum Mutant. Infect Immun 2021; 89:IAI.00533-20. [PMID: 33139384 DOI: 10.1128/iai.00533-20] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 10/29/2020] [Indexed: 12/17/2022] Open
Abstract
The obligate intracellular bacterium Chlamydia muridarum can colonize the mouse colon for a long period, but a gamma interferon (IFN-γ)-susceptible mutant clone fails to do so. Nevertheless, the mutant's colonization is rescued in mice deficient in interleukin-7 receptor (IL-7R) (lacking both lymphocytes and innate lymphoid cells [ILCs]) or IFN-γ but not in mice lacking recombination-activated gene 1 (Rag1-/- mice) (lacking adaptive immunity lymphocytes), indicating a critical role of ILC-derived IFN-γ in regulating chlamydial colonization. In the current study, we have used an adoptive transfer approach for further characterizing the responsible ILCs. First, intestinal ILCs isolated from Rag1-/- mice were able to rescue IL-7R-deficient mice to restrict the colonization of the IFN-γ-susceptible Chlamydia muridarum mutant. Second, the responsible ILCs were localized to the intestinal lamina propria since ILCs from the lamina propria but not the intraepithelial compartment conferred the restriction. Third, lamina propria ILCs enriched for RORγt expression but not those negative for RORγt rescued the IL-7R-deficient mice to restrict mutant colonization, indicating a critical role of group 3-like ILCs (ILC3s) since RORγt is a signature transcriptional factor of ILC3s. Fourth, a portion of the ILC3s expressed IFN-γ, thus defined as ex-ILC3s, and the transfer of the ex-ILC3s conferred colon resistance to mutant Chlamydia muridarum colonization in IFN-γ-deficient mice. Finally, genetically labeled RORγt-positive (RORγt+) ILCs were able to inhibit mutant colonization. Thus, we have demonstrated that ILC3s are sufficient for regulating chlamydial colonization, laying a foundation for further revealing the mechanisms by which an obligate intracellular bacterium activates colonic ILC3s.
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Jann JT, Cunningham NJ, Assaf RD, Bolan RK. Evidence supporting the standardisation of extragenital gonorrhoea and chlamydia screenings for women. Sex Transm Infect 2020; 97:601-606. [PMID: 33361465 DOI: 10.1136/sextrans-2020-054577] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 10/26/2020] [Accepted: 11/28/2020] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVE Current guidelines for women do not include extragenital screening for Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) and do not mention anal sex behaviour. The objective of this cross-sectional study was to determine the number of potentially missed CT and NG cases by relying on urogenital screening and self-reported anal sex behaviour among women. METHODS Demographic and clinical data of 4658 women attending a community health centre in Los Angeles, California, USA from 2015 to 2018 were examined. CT and NG were detected using nucleic acid amplification test (APTIMA Combo 2, Hologic Gen-Probe, San Diego, California). Demographic and behavioural factors were also examined to assess potentially missed NG/CT cases. Multivariable regression analyses were used to determine whether reported anal sex behaviour predicts NG/CT rectal infection. RESULTS A total of 193 NG cases and 552 CT cases were identified; however, 53.9% of NG cases and 25.5% of CT cases were identified exclusively through extragenital screening. Of all positive cases of rectal CT, 87.0% did not report anal sex without a condom and 91.3% did not report any anal sex with their last sexual partner. Of all positive cases of rectal NG, 78.9% did not report anal sex without a condom and 76.3% did not report any anal sex with their last sexual partner. Anal sex with last partner was not predictive of NG/CT rectal infection. CONCLUSIONS Relying solely on urogenital screening and reported behaviour misses NG/CT cases. Extragenital NG/CT screening should be conducted in all women regardless of reported anal sex behaviour.
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Affiliation(s)
| | | | - Ryan D Assaf
- Health Services, Los Angeles LGBT Center, Los Angeles, California, USA
- Department of Epidemiology, University of California Los Angeles Jonathan and Karin Fielding School of Public Health, Los Angeles, California, USA
| | - Robert K Bolan
- Health Services, Los Angeles LGBT Center, Los Angeles, California, USA
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Men and Women Have Similar Neisseria gonorrhoeae Bacterial Loads: a Comparison of Three Anatomical Sites. J Clin Microbiol 2020; 58:JCM.01171-20. [PMID: 32817230 DOI: 10.1128/jcm.01171-20] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/08/2020] [Indexed: 02/07/2023] Open
Abstract
Neisseria gonorrhoeae is a common bacterial sexually transmitted infection (STI). Currently, there are limited data on the bacterial load in both men and women and on both genital and extragenital sites. Therefore, we quantified N. gonorrhoeae bacterial loads in a large population of women, heterosexual men, and men who have sex with men (MSM) at three different anatomical sites. N. gonorrhoeae-positive samples (n = 1265) of STI clinic consultations (n = 944) were tested for N. gonorrhoeae with the Roche Cobas 4800 system, and quantification cycle (Cq) values were used as an inversely proportional measure for N. gonorrhoeae bacterial load after interpolation from a standard curve. Bacterial loads were compared between sample materials and sexes using t tests. The following mean N. gonorrhoeae loads were observed: urine, 4.5 ± 1.0 log10 CFU/ml; vaginal swabs, 4.3 ± 1.1 log10 CFU/ml; anorectal swabs (women), 4.0 ± 1.2 log10 CFU/ml; anorectal swabs (men), 4.5 ± 1.3 log10 CFU/ml; oropharyngeal swabs (women), 2.8 ± 0.9 log10 CFU/ml; and oropharyngeal swabs (men), 3.2 ± 1.0 log10 CFU/ml. Oropharyngeal swabs had a significantly lower N. gonorrhoeae load (P < 0.001) than genital and anorectal samples. Loads did not differ between men and women. This is the first study that determined N. gonorrhoeae load in both women and men at three anatomical sites. The substantial N. gonorrhoeae load at all sample sites suggest that all sites may have transmission potential. However, the oropharyngeal site presents the lowest bacterial load. Men and women have a similar N. gonorrhoeae loads on separate anatomical sites, arguing for similar transmission potential and similar clinical relevance.
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Dukers-Muijrers NHTM, Wolffs PFG, De Vries H, Götz HM, Heijman T, Bruisten S, Eppings L, Hogewoning A, Steenbakkers M, Lucchesi M, Schim van der Loeff MF, Hoebe CJPA. Treatment Effectiveness of Azithromycin and Doxycycline in Uncomplicated Rectal and Vaginal Chlamydia trachomatis Infections in Women: A Multicenter Observational Study (FemCure). Clin Infect Dis 2020; 69:1946-1954. [PMID: 30689759 PMCID: PMC6853690 DOI: 10.1093/cid/ciz050] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 01/17/2019] [Indexed: 12/19/2022] Open
Abstract
Background Rectal infections with Chlamydia trachomatis (CT) are prevalent in women visiting a sexually transmitted infection outpatient clinic, but it remains unclear what the most effective treatment is. We assessed the effectiveness of doxycycline and azithromycin for the treatment of rectal and vaginal chlamydia in women. Methods This study is part of a prospective multicenter cohort study (FemCure). Treatment consisted of doxycycline (100 mg twice daily for 7 days) in rectal CT–positive women, and of azithromycin (1 g single dose) in vaginally positive women who were rectally untested or rectally negative. Participants self-collected rectal and vaginal samples at enrollment (treatment time-point) and during 4 weeks of follow-up. The endpoint was microbiological cure by a negative nucleic acid amplification test at 4 weeks. Differences between cure proportions and 95% confidence intervals (CIs) were calculated. Results We analyzed 416 patients, of whom 319 had both rectal and vaginal chlamydia at enrollment, 22 had rectal chlamydia only, and 75 had vaginal chlamydia only. In 341 rectal infections, microbiological cure in azithromycin-treated women was 78.5% (95% CI, 72.6%–83.7%; n = 164/209) and 95.5% (95% CI, 91.0%–98.2%; n = 126/132) in doxycycline-treated women (difference, 17.0% [95% CI, 9.6%–24.7%]; P < .001). In 394 vaginal infections, cure was 93.5% (95% CI, 90.1%–96.1%; n = 246/263) in azithromycin-treated women and 95.4% (95% CI, 90.9%–98.2%; n = 125/131) in doxycycline-treated women (difference, 1.9% [95% CI, –3.6% to 6.7%]; P = .504). Conclusions The effectiveness of doxycycline is high and exceeds that of azithromycin for the treatment of rectal CT infections in women. Clinical Trials Registration NCT02694497.
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Affiliation(s)
- Nicole H T M Dukers-Muijrers
- Department of Sexual Health, Infectious Diseases, and Environmental Health, Heerlen, South Limburg Public Health Service, The Netherlands.,Department of Medical Microbiology, Care and Public Health Research Institute, Maastricht University Medical Center, The Netherlands
| | - Petra F G Wolffs
- Department of Medical Microbiology, Care and Public Health Research Institute, Maastricht University Medical Center, The Netherlands
| | - Henry De Vries
- Department of Infectious Diseases, Public Health Service of Amsterdam, The Netherlands.,Amsterdam Infection and Immunity Institute, Amsterdam University Medical Center, The Netherlands.,National Institute of Public Health and the Environment, Epidemiology and Surveillance Unit, Centre for Infectious Disease Control, Bilthoven, The Netherlands
| | - Hannelore M Götz
- National Institute of Public Health and the Environment, Epidemiology and Surveillance Unit, Centre for Infectious Disease Control, Bilthoven, The Netherlands.,Department Infectious Disease Control, Municipal Public Health Service Rotterdam-Rijnmond, The Netherlands.,Department of Public Health, Erasmus Medical Center-University Medical Center Rotterdam, The Netherlands
| | - Titia Heijman
- Department of Infectious Diseases, Public Health Service of Amsterdam, The Netherlands
| | - Sylvia Bruisten
- Department of Infectious Diseases, Public Health Service of Amsterdam, The Netherlands.,Amsterdam Infection and Immunity Institute, Amsterdam University Medical Center, The Netherlands
| | - Lisanne Eppings
- Department of Sexual Health, Infectious Diseases, and Environmental Health, Heerlen, South Limburg Public Health Service, The Netherlands
| | - Arjan Hogewoning
- Department of Infectious Diseases, Public Health Service of Amsterdam, The Netherlands.,Amsterdam Infection and Immunity Institute, Amsterdam University Medical Center, The Netherlands
| | - Mieke Steenbakkers
- Department of Sexual Health, Infectious Diseases, and Environmental Health, Heerlen, South Limburg Public Health Service, The Netherlands
| | - Mayk Lucchesi
- Department of Medical Microbiology, Care and Public Health Research Institute, Maastricht University Medical Center, The Netherlands
| | - Maarten F Schim van der Loeff
- Department of Infectious Diseases, Public Health Service of Amsterdam, The Netherlands.,Amsterdam Infection and Immunity Institute, Amsterdam University Medical Center, The Netherlands
| | - Christian J P A Hoebe
- Department of Sexual Health, Infectious Diseases, and Environmental Health, Heerlen, South Limburg Public Health Service, The Netherlands.,Department of Medical Microbiology, Care and Public Health Research Institute, Maastricht University Medical Center, The Netherlands
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Dukers-Muijrers NHTM, Wolffs P, Lucchesi M, Götz HM, De Vries H, Schim van der Loeff M, Bruisten SM, Hoebe CJPA. Oropharyngeal Chlamydia trachomatis in women; spontaneous clearance and cure after treatment (FemCure). Sex Transm Infect 2020; 97:147-151. [PMID: 32737209 DOI: 10.1136/sextrans-2020-054558] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/17/2020] [Accepted: 06/27/2020] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVES Women attending STI clinics are not routinely tested for oropharyngeal Chlamydia trachomatis (CT) infections. We aimed to assess spontaneous clearance of oropharyngeal CT and cure after antibiotic treatment in women. METHODS Women with vaginal or rectal CT (n=560) were recruited at STI clinics in 2016-2017, as part of the FemCure study (prospective cohort study). We included participants' data from week -1, that is, the diagnosis at initial visit, when clinics applied selective oropharyngeal testing. At week -1, a total of 241 women were oropharyngeally tested (30 positive) and 319 were untested. All FemCure participants provided nurse-collected oropharyngeal samples at study enrolment, that is, week 0, just prior to treatment (n=560), and after treatment at weeks 4 (n=449), 8 (n=433) and 12 (n=427). Samples were tested by nucleic acid amplification test, and at week 0 also by viability testing by viability PCR. Proportions of oropharyngeal CT test results were presented to represent spontaneous clearance and cure. RESULTS Of 30 women diagnosed with oropharyngeal CT at week -1, fifteen (50%) were negative at week 0 after a median of 9 days, that is, 'spontaneous clearance'. At week 0, a total of 560 participants were tested, and 46 (8.8%) were oropharyngeal CT positive; 12 of them (26.1%) had viable CT. Of the 46 positive, 36 women had an oropharyngeal test after treatment; 97.2% (35/36) were negative at week 4, that is, 'cure'. Of all women with follow-up visits, the proportion of oropharyngeal CT positive was between 0.5% and 1.6% between weeks 4 and 12. Of those not tested at week -1 (n=319), 8.5% (n=27) were oropharyngeal positive at week 0. CONCLUSIONS The clinical importance of oropharyngeal CT in women is debated. We demonstrated that spontaneous clearance of oropharyngeal CT among women is common; of those who did not clear for CT, three-quarters had non-viable CT. After regular treatment with azithromycin or doxycycline, cure rate (97%) of oropharyngeal CT is excellent. TRIAL REGISTRATION NUMBER NCT02694497.
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Affiliation(s)
- Nicole H T M Dukers-Muijrers
- Department of Health Promotion, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands .,Department of Sexual Health, Infectious Diseases, and Environmental Health, Public Health Service South Limburg, Heerlen, Limburg, The Netherlands
| | - Petra Wolffs
- Department of Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Mayk Lucchesi
- Department of Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Hannelore M Götz
- Department of Public Health, Sexual Health Centre, Public Health Service Rotterdam-Rijnmond, Rotterdam, The Netherlands.,Department of Public Health, Erasmus MC-University Medical Center Rotterdam, Rotterdam, The Netherlands.,Epidemiology and Surveillance Unit, Centre for Infectious Disease Control, National Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Henry De Vries
- Department of Infectious Diseases, Public Health Service Amsterdam, Amsterdam, The Netherlands.,Department of Dermatology, Amsterdam Institute for Infection and Immunity (AI&II), location Academic Medical Centre, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Maarten Schim van der Loeff
- Department of Infectious Diseases, Public Health Service Amsterdam, Amsterdam, The Netherlands.,Department of Internal Medicine, Amsterdam Institute for Infection and Immunity (AI&II), location Academic Medical Centre, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Sylvia M Bruisten
- Department of Infectious Diseases, Public Health Service Amsterdam, Amsterdam, The Netherlands.,Department of Dermatology, Amsterdam Institute for Infection and Immunity (AI&II), location Academic Medical Centre, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Christian J P A Hoebe
- Department of Sexual Health, Infectious Diseases, and Environmental Health, Public Health Service South Limburg, Heerlen, Limburg, The Netherlands.,Department of Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands.,Department of Social Medicine, University of Maastricht, Maastricht, The Netherlands
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Middlebrook H, Ruud M. Extragenital Screening for Chlamydia and Gonorrhea Among Adolescents and Young Adults at a Sexual Health Clinic. Nurs Womens Health 2020; 24:267-276. [PMID: 32649927 DOI: 10.1016/j.nwh.2020.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 03/09/2020] [Accepted: 05/01/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To increase screening rates for oropharyngeal and rectal (extragenital) chlamydia and gonorrhea infections among adolescents and young adults by 20% and for 90% of nurses to demonstrate a change in behavior and knowledge surrounding extragenital screening. DESIGN A pre- and posttest design to evaluate nurse knowledge and the percentage of extragenital chlamydia and gonorrhea screenings completed before and after a 2-month intervention period. SETTING Reproductive health clinic for adolescents and young adults up to age 25 years in the Twin Cities metropolitan area of Minnesota. PARTICIPANTS Four registered nurses who provide direct client care at the identified sexual and reproductive health clinic. INTERVENTION/MEASUREMENTS We implemented an education session for four staff nurses, a standardized sexual history taking tool, and protocols for obtaining oropharyngeal and rectal specimens. We measured extragenital chlamydia and gonorrhea screening rates, as well as knowledge and behavior change among registered nurses. RESULTS Data came from records for 623 individuals who were deemed at risk for extragenital chlamydia and gonorrhea infection. Extragenital chlamydia and gonorrhea screening rates increased by more than 700% from before to after the intervention. Five out of nine (55.6%) extragenital chlamydia and gonorrhea infections diagnosed would have been missed with urogenital screening alone. One hundred percent of nurses demonstrated an increase in their knowledge of the 5 P's of sexual health (Partners, Practices, Protection from sexually transmitted infections, Past history of STIs, and Prevention of pregnancy) to conduct a risk assessment, the eligibility criteria for extragenital testing, and the actual collection processes of pharyngeal and rectal swabs. CONCLUSION Use of evidence-based recommendations and a collaborative team facilitated a more consistent approach to the assessment and diagnosis of extragenital chlamydia and gonorrhea infections. Generalizability is limited to the project site; however, this process could be implemented in other clinics to determine if similar results can be achieved.
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Extragenital Gonorrhea and Chlamydia Among Men and Women According to Type of Sexual Exposure. Sex Transm Dis 2020; 46:329-334. [PMID: 30676485 DOI: 10.1097/olq.0000000000000967] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Current guidelines recommend screening for extragenital gonorrhea (GC) and chlamydia (CT) only among men having sex with men (MSM). Extragenital GC and CT is associated with treatment failure and disease transmission. The prevalence of extragenital GC/CT infections in women and in men having sex with women (MSW) are less well studied. We sought to determine the prevalence of extragenital CG and CT among all persons attending a sexually transmitted diseases clinic who engaged in extragenital sexual activity. METHODS We examined demographic and clinical data of all patients who engaged in extragenital sexual activity between January 2012 and October 2014. Nucleic acid amplification testing for GC and CT was performed at sites of exposure among all men and women at pharyngeal, rectal, and urogenital sites. Multivariable logistic regression analyses were performed to determine the extent that age, race/ethnicity, and number of sexual partners predicted a positive test result. RESULTS Pharyngeal GC was found in 3.1% of MSW, representing 35% of the GC infections in MSW. Thirty-six percent of MSW with pharyngeal GC tested negative at their urogenital site. Pharyngeal GC in MSW prevalence was higher among those with younger age or a higher number of sex partners. Pharyngeal GC, rectal GC, and rectal CT rates were 8.5%, 15.0%, and 16.5%, respectively, among MSM and 3.8%, 4.8%, and 11.8% among women having sex with men (WSM), respectively. CONCLUSIONS Extragenital GC and CT rates of infection was highest among MSM but was also observed in WSM and MSW, representing an unrecognized disease burden.
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A longitudinal study to investigate previous Chlamydia trachomatis infection as a risk factor for subsequent anorectal infection in men who have sex with men (MSM) and women visiting STI clinics in the Netherlands. Epidemiol Infect 2020; 147:e214. [PMID: 31364548 PMCID: PMC6624857 DOI: 10.1017/s0950268819001018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Although anorectal Chlamydia trachomatis (CT) infections are frequently diagnosed in men who have sex with men (MSM) and women, the reason for this infection often remains unexplained, as anal sex is not always reported. Oropharyngeal infections inoculating the gastrointestinal (GI) tract may contribute to anorectal-CT infections, as evidence in animals suggests that chlamydia bacteria undergo GI passage; however, no evidence exists in humans. Longitudinal patient clinic-registry data from MSM (n = 17 125) and women (n = 4120) from two Dutch sexually transmitted infection clinics were analysed. When adjusting for confounding socio-demographics, co-infections and risk behaviour, previous (from 3 weeks up to 24 months) oropharyngeal CT was not a risk factor for subsequent anorectal CT in women (odds ratio (OR) 0.46; 95% confidence interval (CI) 0.18–1.18; P = 0.11) and MSM (OR 1.33; 95% CI 0.86–2.07; P = 0.204). Despite the large dataset, the numbers did not allow for the estimation of risk in specific subgroups of interest. The role of the GI tract cannot be excluded with this epidemiological study, but the impact of preceding oropharyngeal CT on anorectal-CT infection is likely limited.
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Coronado-Cerda EE, Ancer-Rodríguez J, Montemayor-Martínez R, Canabal-Hermida F, Gallegos-Avila G, De la Garza-Ramos MA. Chlamydia trachomatis in the gingival sulcus and pharynx in patients of Northeast Mexico. Clin Exp Dent Res 2020; 6:415-419. [PMID: 32220009 PMCID: PMC7453775 DOI: 10.1002/cre2.290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/05/2020] [Accepted: 03/06/2020] [Indexed: 01/10/2023] Open
Abstract
Background The oral microenvironment provides the conditions for the establishment of microorganisms not usually considered residents of the normal oral microbiota. Sexually transmitted microorganisms such as Chlamydia trachomatis can adhere to any mucosal surface and ascend to reach appropriate locations to survive and develop symptomatic infections. Materials and methods To determine the presence of C. trachomatis, direct immunofluorescence of this microorganism was carried out in 76 randomly selected patients attending a periodontal clinic during a period of 1 year. Samples from the gingival sulcus and the pharynx were collected for detection of C. trachomatis. Patients who attended the periodontal clinic were divided into two groups: those without periodontitis and those with periodontitis. For the purpose of performing other statistical analyses, all patients were also divided by gender and age. Results From the total of 76 patients, in the group without periodontitis, 61% were positive for C. trachomatis in the gingival sulcus and 63.4% in the pharynx; in the periodontitis group, 45.7% were positive in the sulcus and 40% in the pharynx. When we compared patients by gender or age, no statistical difference was found. Conclusions The prevalence of C. trachomatis in this group was 53.9% in the gingival sulcus and pharynx of the studied patients.
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Affiliation(s)
- Erika E Coronado-Cerda
- Escuela Ciencias de la Salud, Universidad del Valle de México, Monterrey, Nuevo Leon, Mexico
| | - Jesus Ancer-Rodríguez
- Facultad de Odontología/Posgrado de Periodoncia y Unidad de Odontología Integral y Especialidades del CIDICS, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico.,Departamento de Patología, Facultad de Medicina y Hospital Universitario Dr. Jose Eleuterio Gonzalez, Universidad Autónoma de Nuevo León, Monterrey, Nuevo Leon, Mexico
| | - Raul Montemayor-Martínez
- Facultad de Odontología/Posgrado de Periodoncia y Unidad de Odontología Integral y Especialidades del CIDICS, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
| | | | - Guadalupe Gallegos-Avila
- Departamento de Patología, Facultad de Medicina y Hospital Universitario Dr. Jose Eleuterio Gonzalez, Universidad Autónoma de Nuevo León, Monterrey, Nuevo Leon, Mexico
| | - Myriam A De la Garza-Ramos
- Facultad de Odontología/Posgrado de Periodoncia y Unidad de Odontología Integral y Especialidades del CIDICS, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico
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Dukers–Muijrers NHTM, Heijman T, Götz HM, Zaandam P, Wijers J, Leenen J, van Liere G, Heil J, Brinkhues S, Wielemaker A, Schim van der Loeff MF, Wolffs PFG, Bruisten SM, Steenbakkers M, Hogewoning AA, de Vries HJ, Hoebe CJPA. Participation, retention, and associated factors of women in a prospective multicenter study on Chlamydia trachomatis infections (FemCure). PLoS One 2020; 15:e0230413. [PMID: 32187221 PMCID: PMC7080261 DOI: 10.1371/journal.pone.0230413] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 02/28/2020] [Indexed: 11/18/2022] Open
Abstract
Prospective studies are key study designs when attempting to unravel health mechanisms that are widely applicable. Understanding the internal validity of a prospective study is essential to judge a study's quality. Moreover, insights in possible sampling bias and the external validity of a prospective study are useful to judge the applicability of a study's findings. We evaluated participation, retention, and associated factors of women in a multicenter prospective cohort (FemCure) to understand the study's validity.Chlamydia trachomatis (CT) infected adult women, negative for HIV, syphilis, and Neisseria gonorrhoeae were eligible to be preselected and included at three sexually transmitted infection (STI) clinics in the Netherlands (2016-2017). The planned follow-up for participants was 3 months, with two weekly rectal and vaginal CT self-sampling and online questionnaires administered at home and at the clinic. We calculated the proportions of preselected, included, and retained (completed follow-up) women. Associations with non-preselection, noninclusion, and non-retention (called attrition) were assessed (logistic and Cox regression).Among the 4,916 women, 1,763 (35.9%) were preselected, of whom 560 (31.8%) were included. The study population had diverse baseline characteristics: study site, migration background, high education, and no STI history were associated with non-preselection and noninclusion. Retention was 76.3% (n = 427). Attrition was 10.71/100 person/month (95% confidence interval 9.97, 12.69) and was associated with young age and low education. In an outpatient clinical setting, it proved feasible to include and retain women in an intensive prospective cohort. External validity was limited as the study population was not representative (sampling bias), but this did not affect the internal validity. Selective attrition, however (potential selection bias), should be accounted for when interpreting the study results.
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Affiliation(s)
- Nicole H. T. M. Dukers–Muijrers
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands
- Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Titia Heijman
- Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, The Netherlands
| | - Hannelore M. Götz
- Department of Public Health, Sexual Health Centre, Public Health Service Rotterdam-Rijnmond, Rotterdam, The Netherlands
- National Institute of Public Health and the Environment (RIVM), Epidemiology and Surveillance Unit, Centre for Infectious Disease Control, Bilthoven, The Netherlands
- Department of Public Health, Erasmus MC—University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Patricia Zaandam
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands
| | - Juliën Wijers
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands
- Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Jeanine Leenen
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands
- Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Geneviève van Liere
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands
- Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Jeanne Heil
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands
- Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Stephanie Brinkhues
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands
- Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Astrid Wielemaker
- Department of Public Health, Sexual Health Centre, Public Health Service Rotterdam-Rijnmond, Rotterdam, The Netherlands
| | - Maarten F. Schim van der Loeff
- Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, The Netherlands
- Department of Dermatology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity (AI&II), Location Academic Medical Centre, Amsterdam, The Netherlands
| | - Petra F. G. Wolffs
- Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
| | - Sylvia M. Bruisten
- Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, The Netherlands
- Department of Dermatology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity (AI&II), Location Academic Medical Centre, Amsterdam, The Netherlands
| | - Mieke Steenbakkers
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands
| | - Arjan A. Hogewoning
- Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, The Netherlands
| | - Henry J. de Vries
- Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, The Netherlands
- Department of Dermatology, Amsterdam UMC, University of Amsterdam, Amsterdam Institute for Infection and Immunity (AI&II), Location Academic Medical Centre, Amsterdam, The Netherlands
| | - Christian J. P. A. Hoebe
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands
- Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands
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Dukers-Muijrers NHTM, Janssen KJH, Hoebe CJPA, Götz HM, Schim van der Loeff MF, de Vries HJC, Bruisten SM, Wolffs PFG. Spontaneous clearance of Chlamydia trachomatis accounting for bacterial viability in vaginally or rectally infected women (FemCure). Sex Transm Infect 2020; 96:541-548. [PMID: 32066588 DOI: 10.1136/sextrans-2019-054267] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 01/23/2020] [Accepted: 01/28/2020] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES Spontaneous clearance of Chlamydia trachomatis (CT) infections can occur between diagnosis and treatment. We followed CT patients to assess clearance using a conventional definition (no total CT-DNA, assessed by routine quantitative PCR methods) and a definition accounting for viability, assessed by viability PCR testing. METHODS Three outpatient STI clinics included CT-diagnosed women (The Netherlands, 2016-2017, FemCure study); participants had vaginal CT (vCT) and rectal CT (rCT) (group A: n=155), vCT and were rectally untested (group B: n=351), single vCT (group C: n=25) or single rCT (group D: n=29). Follow-up (median interval 9 days) vaginal and rectal samples underwent quantitative PCR testing (detecting total CT-DNA). When PCR positive, samples underwent V-PCR testing to detect 'viable CT' (CT-DNA from intact CT organisms; V-PCR positive). 'Clearance' was the proportion PCR-negative patients and 'clearance of viable CT' was the proportion of patients testing PCR negative or PCR positive but V-PCR negative. We used multivariable logistic regression analyses to assess diagnosis group (A-D), age, days since initial CT test (diagnosis) and study site (STI clinic) in relation to clearance and clearance of viable CT. RESULTS Clearance and clearance of viable CT at both anatomic sites were for (A) 0.6% and 3.9%; (B) 5.4% and 9.4%; (C) 32.0% and 52.0% and (D) 27.6% and 41.4%, respectively. In multivariate analyses, women with single infections (groups C and D) had higher likelihood of clearance than women concurrently infected with vCT and rCT (p<0.001).Of rectally untested women (group B), 76.9% had total CT-DNA and 46.7% had viable CT (V-PCR positive) at the rectal site. CONCLUSIONS Of untreated female vCT patients who had CT also at the rectal site, or who were rectally untested, only a small proportion cleared CT (in fact many had viable CT) at their follow-up visit (median 9 days). Among single site infected women clearance was much higher. TRIAL REGISTRATION NUMBER NCT02694497.
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Affiliation(s)
- Nicole H T M Dukers-Muijrers
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands .,Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Kevin J H Janssen
- Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Christian J P A Hoebe
- Department of Sexual Health, Infectious Diseases, and Environmental Health, South Limburg Public Health Service, Heerlen, The Netherlands.,Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Hannelore M Götz
- Department of Public Health, Sexual Health Centre, Public Health Service Rotterdam-Rijnmond, Rotterdam, The Netherlands.,National Institute of Public Health and the Environment (RIVM), Epidemiology and Surveillance Unit, Centre for Infectious Disease Control, Bilthoven, The Netherlands.,Department of Public Health, Erasmus MC-University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Maarten F Schim van der Loeff
- Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, The Netherlands.,Amsterdam UMC, University of Amsterdam, Department of Dermatology, Amsterdam Institute for Infection and Immunity (AI&II), Location Academic Medical Centre, Amsterdam, The Netherlands
| | - Henry J C de Vries
- Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, The Netherlands.,Amsterdam UMC, University of Amsterdam, Department of Dermatology, Amsterdam Institute for Infection and Immunity (AI&II), Location Academic Medical Centre, Amsterdam, The Netherlands
| | - Sylvia M Bruisten
- Department of Infectious Diseases, Public Health Service of Amsterdam (GGD Amsterdam), Amsterdam, The Netherlands.,Amsterdam UMC, University of Amsterdam, Department of Dermatology, Amsterdam Institute for Infection and Immunity (AI&II), Location Academic Medical Centre, Amsterdam, The Netherlands
| | - Petra F G Wolffs
- Department of Social Medicine and Medical Microbiology, Care and Public Health Research Institute (CAPHRI), Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
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Tao G, Hoover KW, Nye MB, Peters PJ, Gift TL, Body BA. Infrequent Testing of Women for Rectal Chlamydia and Gonorrhea in the United States. Clin Infect Dis 2019; 66:570-575. [PMID: 29028971 DOI: 10.1093/cid/cix857] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 10/04/2017] [Indexed: 12/20/2022] Open
Abstract
Background Anal sex is a common sexual behavior among women that increases their risk of acquiring rectal infection with Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (GC). Methods We estimated the frequency and positivity of rectal CT and GC tests for women aged 15-60 years performed by a large US commercial laboratory between November 2012 and September 2015. We also estimated the frequency and positivity of pharyngeal and genital specimens also performed on the same date. Among women with a positive CT or GC result, we estimated the frequency and positivity of recommended repeat testing within 12 months. Results Of 5499 women who had rectal CT and GC tests, positivity was 10.8%. On the same date, approximately 80% also had genital CT tests, genital GC tests, and pharyngeal GC tests, while 40% had pharyngeal CT tests. Rectal CT or GC infection was associated with genital CT or GC infection, but 46.5% of rectal CT and GC infections would not have been identified with genital testing alone. Among women with a rectal CT or GC infection, only 20.0% had a recommended repeat rectal test. Of those who had a repeat test, 17.7% were positive. Conclusions Testing women for rectal CT and GC was infrequent, but positive tests were often found in women with negative genital tests. Most women with positive rectal tests were not retested. Interventions are needed to increase extragenital CT and GC testing of at-risk women.
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Affiliation(s)
- Guoyu Tao
- Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
| | - Karen W Hoover
- Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
| | - Melinda B Nye
- Laboratory Corporation of America Holdings, Burlington, North Carolina
| | - Philip J Peters
- Division of HIV/AIDS Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
| | - Thomas L Gift
- Division of STD Prevention, National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), Centers for Disease Control and Prevention (CDC), Atlanta, Georgia
| | - Barbara A Body
- Laboratory Corporation of America Holdings, Burlington, North Carolina
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Rectal Chlamydia trachomatis and Neisseria gonorrhoeae Infections Among Women Reporting Anal Intercourse. Obstet Gynecol 2019; 132:692-697. [PMID: 30095784 DOI: 10.1097/aog.0000000000002804] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVE To examine the prevalence and treatment of rectal Chlamydia trachomatis and Neisseria gonorrhoeae infections among women reporting receptive anal intercourse in a network of sexually transmitted disease or sexual health clinics and estimate the proportion of missed infections if women were tested at the genital site only. METHODS We conducted a cross-sectional analysis of C trachomatis and N gonorrhoeae test results from female patients reporting receptive anal intercourse in the preceding 3 months during visits to 24 sexually transmitted disease clinics from 2015 to 2016. Primary outcomes of interest were 1) anatomic site-specific C trachomatis and N gonorrhoeae testing and positivity among women attending selected U.S. sexually transmitted disease clinics who reported receptive anal intercourse and 2) the proportion of rectal infections that would have remained undetected if only genital sites were tested. RESULTS Overall, 7.4% (3,743/50,785) of women reported receptive anal intercourse during the 2 years. Of the 2,818 women tested at both the genital and rectal sites for C trachomatis, 292 women were positive (61 genital only, 60 rectal only, and 171 at both sites). Of the 2,829 women tested at both the genital and rectal sites for N gonorrhoeae, 128 women were positive (31 genital only, 23 rectal only, and 74 at both sites). Among women tested at both anatomic sites, the proportion of missed C trachomatis infections would have been 20.5% and for N gonorrhoeae infections, 18.0%. CONCLUSION Genital testing alone misses approximately one fifth of C trachomatis and N gonorrhoeae infections in women reporting receptive anal intercourse in our study population. Missed rectal infections may result in ongoing transmission to other sexual partners and reinfection.
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Understanding the attitudes and acceptability of extra-genital Chlamydia testing in young women: evaluation of a feasibility study. BMC Public Health 2019; 19:992. [PMID: 31340797 PMCID: PMC6657166 DOI: 10.1186/s12889-019-7313-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 07/12/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chlamydia trachomatis (C. trachomatis) is the most common bacterial sexually transmitted infection in the UK. Recent studies suggest that in addition to the genital tract, C. trachomatis is found in the throat and rectum, suggesting the number of infections is under-reported. There is an urgent need to study the impact of extending diagnosis to include extra-genital samples; however, there is a lack of evidence on the acceptability of asking young women to provide these samples. METHOD A mixed methods single group feasibility study explored the acceptability of combined genital and extra-genital testing in young women aged 16-25 years consecutively attending a sexual health centre in Edinburgh, Scotland. Young women were asked to complete a self- administered anonymous questionnaire whether they would be willing to give self-taken throat and ano-rectal samples. Interviews with women (n = 20) willing to self-sample were conducted before and after self-sampling, and these explored the underlying reasons behind their decision, and feelings about the tests. RESULTS Of 500 women recruited to the study, 422 (84.4%) women provided sufficient data for analysis. From completed questionnaires, 86.3% of respondents reported willingness to self-sample from the throat. Willingness of ano-rectal self-sampling was lower (59.1%), particularly in women under 20 (< 20 years: 44.4%; ≥20 years, 68.2%). Willingness of ano-rectal self-sampling was higher in women who had more sexual partners in the last 6 months (0 partners, 48.3%, n = 14, 3 or more partners, 67.4%, n = 60) and in those who have previous experience of a positive test for a sexually transmitted infection (STI) (positive: 64.5%; negative: 57%). Interviewed women suggested that a lack of knowledge of STIs, embarrassment and lack of confidence in the ability to carry out the sampling were barriers towards acceptability. CONCLUSIONS In this study, self-sampling of throat samples is largely acceptable; however, the acceptability of taking an ano-rectal sample for C. trachomatis testing in young women was lower in younger women. The study suggests further research to investigate the acceptability of extra-genital testing as an addition to routine C. trachomatis testing, and whether this increases detection and prevents infective sequelae for women.
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Distinct Roles of Chromosome- versus Plasmid-Encoded Genital Tract Virulence Factors in Promoting Chlamydia muridarum Colonization in the Gastrointestinal Tract. Infect Immun 2019; 87:IAI.00265-19. [PMID: 31160366 DOI: 10.1128/iai.00265-19] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 05/30/2019] [Indexed: 12/28/2022] Open
Abstract
The genital pathogen Chlamydia is known to colonize the gastrointestinal tract. Orally delivered Chlamydia muridarum can reach the colon and maintain a long-lasting colonization there. However, C. muridarum with mutations in chromosomal genes tc0237 and tc0668 (designated a chromosomal mutant) or deficient in plasmid-encoded pGP3 (designated a plasmid mutant) is unable to do so. We now report that the chromosomal mutant is still able to reach the colon while the plasmid mutant fails to do so following an oral delivery, suggesting that lack of colon colonization by different mutants may involve distinct mechanisms. Consistently, a direct intracolonic delivery selectively restored the ability of the plasmid mutant, but not the chromosomal mutant, to colonize the colon. The chromosomal mutant was rescued only in the colon of mice deficient in gamma interferon (IFN-γ). Thus, the chromosomal mutant's deficiency in colonizing colonic mucosal tissue is likely due to its increased susceptibility to IFN-γ-mediated immunity. Furthermore, IFN-γ deficiency was sufficient for rescuing colon colonization of an orally delivered chromosomal mutant but not plasmid mutant while mice deficient in gastric acid production rescued the plasmid mutant but not the chromosomal mutant. Both mutants are attenuated in inducing genital tract pathology. Thus, we propose that chlamydial chromosomal-gene-encoded genital tract virulence factors may be essential for Chlamydia to maintain long-lasting colonization in the colon while the plasmid may enable Chlamydia to reach the colon by promoting evasion of gastric barriers.
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Pathogenic Interplay Between Chlamydia trachomatis and Neisseria gonorrhoeae that Influences Management and Control Efforts—More Questions than Answers? CURRENT CLINICAL MICROBIOLOGY REPORTS 2019. [DOI: 10.1007/s40588-019-00125-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Lin H, He C, Koprivsek JJ, Chen J, Zhou Z, Arulanandam B, Xu Z, Tang L, Zhong G. Antigen-Specific CD4 + T Cell-Derived Gamma Interferon Is Both Necessary and Sufficient for Clearing Chlamydia from the Small Intestine but Not the Large Intestine. Infect Immun 2019; 87:e00055-19. [PMID: 30962403 PMCID: PMC6529659 DOI: 10.1128/iai.00055-19] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 03/27/2019] [Indexed: 02/07/2023] Open
Abstract
The genital tract pathogen Chlamydia trachomatis is frequently detected in the gastrointestinal tract, but the host immunity that regulates chlamydial colonization in the gut remains unclear. In a Chlamydia muridarum-C57 mouse model, chlamydial organisms are cleared from the genital tract in ∼4 weeks, but the genital organisms can spread to the gastrointestinal tract. We found that the gastrointestinal chlamydial organisms were cleared from the small intestine by day 28, paralleling their infection course in the genital tract, but persisted in the large intestine for long periods. Mice deficient in α/β T cells or CD4+ T cells but not CD8+ T cells showed chlamydial persistence in the small intestine, indicating a critical role for CD4+ T cells in clearing Chlamydia from the small intestine. The CD4+ T cell-dependent clearance is likely mediated by gamma interferon (IFN-γ), since mice deficient in IFN-γ but not interleukin 22 (IL-22) signaling pathways rescued chlamydial colonization in the small intestine. Furthermore, exogenous IFN-γ was sufficient for clearing Chlamydia from the small intestine but not the large intestine. Mice deficient in developing Chlamydia-specific Th1 immunity showed chlamydial persistence in the small intestine. Finally, IFN-γ-producing CD4+ but not CD8+ T cells from immunized donor mice were sufficient for eliminating Chlamydia from the small intestine but not the large intestine of recipient mice. Thus, we have demonstrated a critical role for Th1 immunity in clearing Chlamydia from the small intestine but not the large intestine, indicating that chlamydial colonization in different regions of the gastrointestinal tract is regulated by distinct immune mechanisms.
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Affiliation(s)
- Hui Lin
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Conghui He
- Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - John J Koprivsek
- Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Jianlin Chen
- Department of Obstetrics & Gynecology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhiguang Zhou
- Department of Metabolism & Endocrinology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Bernard Arulanandam
- Department of Biology, College of Science, University of Texas at San Antonio, San Antonio, Texas, USA
| | - Zhenming Xu
- Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Lingli Tang
- Department of Laboratory Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guangming Zhong
- Department of Microbiology, Immunology, and Molecular Genetics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
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45
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Smid J, Althaus CL, Low N. Discrepancies between observed data and predictions from mathematical modelling of the impact of screening interventions on Chlamydia trachomatis prevalence. Sci Rep 2019; 9:7547. [PMID: 31101863 PMCID: PMC6525258 DOI: 10.1038/s41598-019-44003-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 04/26/2019] [Indexed: 11/09/2022] Open
Abstract
Mathematical modelling studies of C. trachomatis transmission predict that interventions to screen and treat chlamydia infection will reduce prevalence to a greater degree than that observed in empirical population-based studies. We investigated two factors that might explain this discrepancy: partial immunity after natural infection clearance and differential screening coverage according to infection risk. We used four variants of a compartmental model for heterosexual C. trachomatis transmission, parameterized using data from England about sexual behaviour, C. trachomatis testing, diagnosis and prevalence, and Markov Chain Monte Carlo methods for statistical inference. In our baseline scenario, a model in which partial immunity follows natural infection clearance and the proportion of tests done in chlamydia-infected people decreases over time fitted the data best. The model predicts that partial immunity reduced susceptibility to reinfection by 68% (95% Bayesian credible interval 46-87%). The estimated screening rate was 4.3 (2.2-6.6) times higher for infected than for uninfected women in 2000, decreasing to 2.1 (1.4-2.9) in 2011. Despite incorporation of these factors, the model still predicted a marked decline in C. trachomatis prevalence. To reduce the gap between modelling and data, advances are needed in knowledge about factors influencing the coverage of chlamydia screening, the immunology of C. trachomatis and changes in C. trachomatis prevalence at the population level.
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Affiliation(s)
- Joost Smid
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Christian L Althaus
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland.
| | - Nicola Low
- Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
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46
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Dirks JAMC, van Liere GAFS, Hoebe CJPA, Wolffs P, Dukers-Muijrers NHTM. Genital and anal Chlamydia trachomatis bacterial load in concurrently infected women: a cross-sectional study. Sex Transm Infect 2019; 95:317-321. [PMID: 31097678 DOI: 10.1136/sextrans-2018-053678] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 04/12/2019] [Accepted: 04/18/2019] [Indexed: 01/03/2023] Open
Abstract
OBJECTIVES Most international STI guidelines recommend Chlamydia trachomatis anorectal testing in women after self-reported sexual exposure or symptoms in women. However, it has been shown that the prevalence of anorectal C. trachomatis is as high (7%-17 %) in women who do not report anorectal intercourse (AI) as in women who do. This study assessed the correlation between the genital and anorectal C. trachomatis load in concurrently infected women for increased microbiological insight. METHODS A convenience sample of 105 women with a concurrent (genital and anorectal) C. trachomatis infection was included from the STI clinic in South Limburg, the Netherlands. Women provided self-collected vaginal and anorectal swabs. The C. trachomatis load was quantified with qPCR and the human cell load was assessed to ensure sample adequacy. Genital and anorectal C. trachomatis loads were divided into tertiles for comparison. The χ2 test and linear regression were used to compare genital and anorectal C. trachomatis loads and identify determinants associated with load. RESULTS The overall median C. trachomatis load was higher in genital (median 5.3 log10 C. trachomatis/ml) than anorectal samples (median 3.4, p ≤ 0.001), but both loads were within the same range. The genital and anal load categories were not related within one woman (p = 0.99), both in women with and without AI. The anorectal C. trachomatis load was in the same or higher load category than the genital load in 56% of women without AI, and 79% of women with AI. CONCLUSIONS Although no cut-off for clinical relevance is known, an anorectal C. trachomatis load in the same or higher load category than the genital C. trachomatis load is likely to be clinically relevant. Other measurements should also be taken into account, such as leucocytes or bacterial viability to distinguish infection from contamination or exposure.
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Affiliation(s)
- J A M C Dirks
- Medical Microbiology, Maastricht University Medical Center, Maastricht, The Netherlands .,SIM, GGD Zuid Limburg, Geleen, The Netherlands
| | - Genevieve A F S van Liere
- Department of Sexual Health, Infectious Diseases and Environmental Health, Public Health Service South Limburg, Geleen, The Netherlands.,Department of Medical Microbiology, School of Public Health and Primary Care (CAPHRI), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Christian J P A Hoebe
- Department of Infectious Diseases, South Limburg Public Health Services, Geleen, The Netherlands
| | - Petra Wolffs
- Medical Microbiology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Nicole H T M Dukers-Muijrers
- Department of Medical Microbiology, School of Public Health and Primary Care (CAPHRI), Maastricht University Medical Center, Maastricht, The Netherlands
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47
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Lau A, Kong FYS, Huston W, Chow EPF, Fairley CK, Hocking JS. Factors associated with anorectal Chlamydia trachomatis or Neisseria gonorrhoeae test positivity in women: a systematic review and meta-analysis. Sex Transm Infect 2019; 95:361-367. [PMID: 31097677 DOI: 10.1136/sextrans-2018-053950] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 04/08/2019] [Accepted: 04/18/2019] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES There has been considerable discussion about anorectal Chlamydia trachomatis (CT) in women, with some calling for anorectal CT screening, but little about anorectal Neisseria gonorrhoeae (NG). Given that urogenital NG is more strongly associated with pelvic inflammatory disease, this is an evidence gap. This systematic review and meta-analysis investigates the associations between anorectal CT in women and CT positivity at other sites (urogenital/oropharyngeal) and with anal intercourse, and compares these with anorectal NG within the same study populations. METHODS Electronic databases were searched for English-language studies published to October 2018 using the following terms: ("Chlamydia" OR "Chlamydia trachomatis") AND (("anal" OR "rect*" OR "anorect*") OR ("extra?genital" OR "multi?site")). Studies were included if anorectal NG data were available. Random-effects meta-analyses calculated pooled estimates; heterogeneity was investigated using meta-regression. RESULTS 25 studies were eligible. Anorectal CT positivity ranged from 0% to 17.5%, with a summary estimate of 8.0% (95% CI 7.0 to 9.1; I2=88.5%). Anorectal NG positivity ranged from 0% to 17.0%, with a summary estimate of 2.1% (95% CI 1.6 to 2.8; I2=92.7%). The association between urogenital and anorectal positivity was stronger for NG than CT (summary prevalence ratio (PR)=89.3 (95% CI 53.1 to 150.3; I2=80.1%), PR=32.2 (95% CI 25.6 to 40.7; I2=70.3%), respectively), and between oropharyngeal and anorectal positivity it was stronger for NG than CT (PR=34.8 (95% CI 10.2 to 118.2; I2=89.9%), PR=8.8 (95% CI 6.8 to 11.5; I2=58.1%), respectively). Anal intercourse was associated with anorectal NG (PR=4.3; 95% CI 2.2 to 8.6; I2=0.0%) but not with anorectal CT (PR=1.0; 95% CI 0.7 to 1.4; I2=0.0%). CONCLUSIONS Anorectal CT is more common than anorectal NG, but anorectal NG is more strongly associated with anal intercourse, urogenital and oropharyngeal NG, suggesting that ongoing discussion about anorectal CT should also include NG. Longitudinal data are required to further understanding of the aetiology of anorectal STIs and assess whether anorectal screening is needed in women. TRIAL REGISTRATION NUMBER CRD42df017080188.
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Affiliation(s)
- Andrew Lau
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Fabian Yuh Shiong Kong
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Willa Huston
- School of Life Sciences, The University of Technology Sydney, Sydney, New South Wales, Australia
| | - Eric P F Chow
- Melbourne Sexual Health Centre, Alfred Health, Carlton, Victoria, Australia.,Central Clinical School, Faculty of Medicine, Monash University, Melbourne, Victoria, Australia
| | - Christopher K Fairley
- Melbourne Sexual Health Centre, Alfred Health, Carlton, Victoria, Australia.,Central Clinical School, Faculty of Medicine, Monash University, Melbourne, Victoria, Australia
| | - Jane S Hocking
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
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48
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Morhason-Bello IO, Kabakama S, Baisley K, Francis SC, Watson-Jones D. Reported oral and anal sex among adolescents and adults reporting heterosexual sex in sub-Saharan Africa: a systematic review. Reprod Health 2019; 16:48. [PMID: 31060573 PMCID: PMC6501425 DOI: 10.1186/s12978-019-0722-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 04/15/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Oral and anal sexual behaviours are increasingly reported among adolescents and adults reporting heterosexual sex in peer-reviewed journals in high income countries, but less is known about these behaviours in low and middle-income countries, especially in sub-Saharan Africa. The aim of this systematic review is to describe the prevalence of, and motivations for, oral and anal sex among adolescents and adults reporting heterosexual sex in sub-Saharan Africa. METHODS A systematic review of published articles that reported oral and or anal sex in sub-Saharan Africa was conducted from seven databases up to and including 30th August 2018. RESULTS Of 13,592 articles, 103 met the inclusion criteria. The prevalence of reporting ever practising oral sex among adolescents, university students and a combined population of adolescents/adults ranged from 1.7-26.6%, 5.0-46.4% and 3.0-47.2% respectively. Similarly, prevalences of reported ever practising anal sex ranged from 6.4-12.4% among adolescents, 0.3-46.5% among university students and 4.3-37.8% amongst combined population of adolescents and adults. Higher prevalences of oral and anal sex were reported among populations at high-risk for sexually transmitted infections and HIV and university students and, in most studies, both behaviours were more commonly reported by males than females. Heterosexual oral and anal sexual acts were associated with some high-risk behaviours such as inconsistent condom use and multiple sexual partners. CONCLUSION Reported oral and anal sex between men and women are prevalent behaviours in sub-Saharan Africa. Health professionals and policy makers should be aware of these behaviours and their potential associated health risks.
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Affiliation(s)
- Imran O. Morhason-Bello
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT UK
- Obstetrics and Gynaecology Department, Faculty of Clinical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Severin Kabakama
- Mwanza Intervention Trials Unit, National Institute for Medical Research, PO Box 11936, Mwanza, Tanzania
| | - Kathy Baisley
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT UK
| | - Suzanna C. Francis
- Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT UK
| | - Deborah Watson-Jones
- Clinical Research Department, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, Keppel St, London, WC1E 7HT UK
- Mwanza Intervention Trials Unit, National Institute for Medical Research, PO Box 11936, Mwanza, Tanzania
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49
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Agrawal SK, Rawre J, Khanna N, Dhawan B. Increase in Chlamydia trachomatis genital and extra-genital infections in Indian males. Indian J Med Microbiol 2019; 37:285-286. [PMID: 31745033 DOI: 10.4103/ijmm.ijmm_19_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Sonu Kumari Agrawal
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Jyoti Rawre
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Neena Khanna
- Department of Dermatology, All India Institute of Medical Sciences, New Delhi, India
| | - Benu Dhawan
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
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50
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van Liere GAFS, Hoebe CJPA, Dirks JA, Wolffs PF, Dukers-Muijrers NHTM. Spontaneous clearance of urogenital, anorectal and oropharyngeal Chlamydia trachomatis and Neisseria gonorrhoeae in women, MSM and heterosexual men visiting the STI clinic: a prospective cohort study. Sex Transm Infect 2019; 95:505-510. [PMID: 30858330 DOI: 10.1136/sextrans-2018-053825] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 12/24/2018] [Accepted: 02/11/2019] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVE Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infections can clear without treatment. Despite high prevalence of anorectal infections in men who have sex with men (MSM) and women, studies on anorectal clearance are scarce. Moreover it is unknown whether bacterial load affects urogenital/anorectal CT clearance. In this prospective cohort study, CT and NG clearance is assessed at three anatomical sites of men and women. METHODS CT-positive and NG-positive MSM, heterosexual men and women ≥18 years of age visiting our STI clinic between 2011 and 2013 underwent a repeat test when returning for treatment (n=482). The primary outcome was clearance, defined as a positive nucleic acid amplification test (NAAT) at screening-consultation, followed by a negative NAAT at treatment-consultation. Sociodemographics, sexual risk behaviour and CT bacterial load (inhouse quantitative PCR) were tested as determinants for clearance using multivariable logistic regression for CT and Fisher's exact test for NG. RESULTS CT clearance was 9.1% (10/110) for urine, 6.8% (20/292) for vaginal swabs, 12.7% (8/63) for anorectal swabs (ie, 4.0% [1/25] in MSM and 18.4% [7/38] in women) and 57.1% (4/7) for oropharyngeal swabs. For NG this was 33.3% (2/6), 28.6% (2/7), 20.0% (2/10) and 27.3% (6/22), respectively. The number of days between tests (median 10, IQR 7-14) was not associated with clearance. Lower bacterial load at screening was the only predictor for CT clearance (urine mean 1.2 vs 2.6 log CT/mL, p=0.001; vaginal swabs mean 2.1 vs 5.2 log CT/mL p<0.0001; anorectal swabs mean 2.0 vs 3.7 log CT/mL, p=0.002). None of the tested determinants were associated with NG clearance. CONCLUSIONS This study reports the largest number of anorectal infections tested for CT and NG clearance to date. Clearance in all sample types was substantial: between 7% and 57% for CT, and between 20% and 33% for NG (notwithstanding low absolute numbers). CT clearance was associated with a lower load at screening. However, not all individuals with low bacterial CT load cleared the infection, hampering STI guideline change.
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Affiliation(s)
- Genevieve A F S van Liere
- Department of Sexual Health, Infectious Diseases and Environmental Health, Public Health Service South Limburg, Heerlen, The Netherlands .,Department of Medical Microbiology, School of Public Health and Primary Care (CAPHRI), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Christian J P A Hoebe
- Department of Sexual Health, Infectious Diseases and Environmental Health, Public Health Service South Limburg, Heerlen, The Netherlands.,Medical Microbiology, School of Public Health and Primary Care (CAPHRI), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Jeanne Amc Dirks
- Medical Microbiology, School of Public Health and Primary Care (CAPHRI), Maastricht University Medical Center, Maastricht, The Netherlands
| | - Petra Fg Wolffs
- Medical Microbiology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Nicole H T M Dukers-Muijrers
- Department of Sexual Health, Infectious Diseases and Environmental Health, Public Health Service South Limburg, Heerlen, The Netherlands
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