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Sorokopud-Jones M, Sharp A, Haworth-Brockman M, Kasper K, MacKenzie L, Ireland L, Gawlik K, Lopez L, Vanegas JM, Bullard J, Boodman C, Sanguins J, Payne M, Templeton K, Keynan Y, Rueda ZV. Sexually transmitted and blood-borne infections by sex, methamphetamine use, and houselessness before, at, and after HIV diagnosis in Manitoba, Canada. IJID REGIONS 2024; 13:100433. [PMID: 39308785 PMCID: PMC11414695 DOI: 10.1016/j.ijregi.2024.100433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 08/19/2024] [Accepted: 08/20/2024] [Indexed: 09/25/2024]
Abstract
Objectives Describe the proportion of people newly living with HIV with sexually transmitted and blood-borne infections (STBBIs) before, at, and after HIV diagnosis in Manitoba, Canada. Methods A retrospective cohort study reviewed clinical charts of all 404 people ≥18 years old newly diagnosed with HIV in Manitoba, Canada between 2018 and 2021. Syphilis, hepatitis C and B, gonorrhea, and chlamydia infections before, at, and after HIV diagnosis were recorded and analyzed by sex at birth, injection drug use status, use of methamphetamines, and housing status. Results A total of 53% of people were diagnosed with syphilis, 44.1% with gonorrhea, 42.8% with chlamydia, and 40.6% with hepatitis C at least once. Among females, 64.1% had at least one or more STBBIs diagnoses before HIV diagnosis compared with 44.8% of males. Over 70% of people experiencing houselessness had at least one STBBI diagnosis before their HIV diagnosis compared with 43.9% of people not houseless. Among people who used methamphetamines, 68.3% had one or more STBBIs before HIV diagnosis compared with 28.9% of people who do not use methamphetamines. In a multivariable analysis houselessness, methamphetamine use, and younger age were associated with increased risk of any STBBIs. Conclusions In our Manitoba cohort of people living with HIV, disproportionately more females, people experiencing houselessness, and those who use methamphetamine were diagnosed with STBBIs. The proportion of new infections before HIV diagnoses highlights a missed opportunity to provide prevention modalities, including pre-exposure prophylaxis, and the proportion after HIV diagnosis emphasizes the importance of enhancing engagement, repeated testing, and educational strategies to ameliorate ongoing exposures.
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Affiliation(s)
| | - Alexander Sharp
- Department of Internal Medicine, University of Manitoba, Winnipeg, Canada
| | - Margaret Haworth-Brockman
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada
- National Collaborating Centre for Infectious Diseases, Winnipeg, Canada
| | - Ken Kasper
- Department of Internal Medicine, University of Manitoba, Winnipeg, Canada
- Manitoba HIV Program, Winnipeg, Canada
- Health Science Centre Winnipeg, Shared Health, Winnipeg, Canada
| | - Lauren MacKenzie
- Department of Internal Medicine, University of Manitoba, Winnipeg, Canada
- Manitoba HIV Program, Winnipeg, Canada
| | - Laurie Ireland
- Manitoba HIV Program, Winnipeg, Canada
- Nine Circles Community Health Centre, Winnipeg, Canada
- Department of Family Medicine, University of Manitoba, Winnipeg, Canada
| | - Kathy Gawlik
- Health Science Centre Winnipeg, Shared Health, Winnipeg, Canada
| | - Lucelly Lopez
- Public Health Research Group, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellin, Colombia
| | - Johanna Marcela Vanegas
- Public Health Research Group, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellin, Colombia
| | - Jared Bullard
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Canada
- Section of Pediatric Infectious Diseases, Department of Pediatrics and Child Health, University of Manitoba, Winnipeg, Canada
- Cadham Provincial Laboratory, Winnipeg, Canada
| | - Carl Boodman
- Department of Internal Medicine, University of Manitoba, Winnipeg, Canada
| | - Julianne Sanguins
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Mike Payne
- Manitoba HIV Program, Winnipeg, Canada
- Nine Circles Community Health Centre, Winnipeg, Canada
| | | | - Yoav Keynan
- Department of Internal Medicine, University of Manitoba, Winnipeg, Canada
- Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada
- National Collaborating Centre for Infectious Diseases, Winnipeg, Canada
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Canada
| | - Zulma Vanessa Rueda
- Public Health Research Group, Facultad de Medicina, Universidad Pontificia Bolivariana, Medellin, Colombia
- Department of Medical Microbiology and Infectious Diseases, University of Manitoba, Winnipeg, Canada
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Cervicovaginal Microbiota Composition in Chlamydia trachomatis Infection: A Systematic Review and Meta-Analysis. Int J Mol Sci 2022; 23:ijms23179554. [PMID: 36076948 PMCID: PMC9455926 DOI: 10.3390/ijms23179554] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/14/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
In healthy women, the cervicovaginal microbiota is characterized by the predominance of Lactobacillus spp., whereas the overgrowth of anaerobic bacteria leads to dysbiosis, known to increase the risk of acquiring genital infections like Chlamydia trachomatis. In the last decade, a growing body of research has investigated the composition of the cervicovaginal microbiota associated with chlamydial infection via 16s rDNA sequencing, with contrasting results. A systematic review and a meta-analysis, performed on the alpha-diversity indices, were conducted to summarize the scientific evidence on the cervicovaginal microbiota composition in C. trachomatis infection. Databases PubMed, Scopus and Web of Science were searched with the following strategy: “Chlamydia trachomatis” AND “micro*”. The diversity indices considered for the meta-analysis were Operational Taxonomic Unit (OTU) number, Chao1, phylogenetic diversity whole tree, Shannon’s, Pielou’s and Simpson’s diversity indexes. The search yielded 425 abstracts for initial review, of which 16 met the inclusion criteria. The results suggested that the cervicovaginal microbiota in C. trachomatis-positive women was characterized by Lactobacillus iners dominance, or by a diverse mix of facultative or strict anaerobes. The meta-analysis, instead, did not show any difference in the microbial biodiversity between Chlamydia-positive and healthy women. Additional research is clearly required to deepen our knowledge on the interplay between the resident microflora and C. trachomatis in the genital microenvironment.
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Significant Associations between Chlamydia trachomatis and Neisseria gonorrhoeae Infections in Human Immunodeficiency Virus-Infected Pregnant Women. Infect Dis Obstet Gynecol 2022; 2022:7930567. [PMID: 35754526 PMCID: PMC9232329 DOI: 10.1155/2022/7930567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 06/07/2022] [Indexed: 11/17/2022] Open
Abstract
There is a lack of data on the burden of Chlamydia trachomatis and Neisseria gonorrhoeae among human immunodeficiency virus- (HIV-) infected pregnant women in South Africa. We conducted a cross-sectional study which included 385 HIV-infected pregnant women attending antenatal clinic at the King Edward VIII Hospital in Durban, South Africa. The women provided vaginal swabs which were tested for C. trachomatis and N. gonorrhoeae. The prevalence of the individual STIs was as follows: C. trachomatis (47/385, 12.2%) and N. gonorrhoeae (16/385, 4.1%). Having a circumcised partner, testing positive for N. gonorrhoeae, and perceiving themselves of being at risk for infection were shown to increase the risk for C. trachomatis infection. Without controlling for the other factors, testing positive for N. gonorrhoeae increased the risk for C. trachomatis infection by 10-fold (OR: 10.17, 95% CI: 3.39-29.66, p < 0.001). Similarly, adjusting for the other factors, the risk for C. trachomatis infection in women who tested positive for N. gonorrhoeae was 9-fold (OR: 9.16, 95% CI: 2.19-40.18, p = 0.003). The following factors were associated with the increased risk of N. gonorrhoeae infection: not knowing their partner's HIV status, partner having other partners, and C. trachomatis infection status. Without controlling for the other factors, testing positive for C. trachomatis increased the risk for N. gonorrhoeae infection by 6-fold (OR: 6.52, 95% CI: 2.22-18.49, p < 0.001). Similarly, adjusting for the other factors, the risk for N. gonorrhoeae infection in women who tested positive for C. trachomatis was 6-fold (OR: 6.09, 95% CI: 1.73-22.03, p = 0.005). We found a significant association between C. trachomatis and N. gonorrhoeae in the pregnant women and the risk factors associated with these pathogens. Future studies are urgently required to investigate the impact of C. trachomatis/N. gonorrhoeae coinfections in HIV pregnant women since this data is lacking in our setting. In addition, etiological screening of C. trachomatis and N. gonorrhoeae during antenatal clinic is urgently required to prevent adverse pregnancy and birth outcomes associated with these infections.
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Ngobese B, Abbai NS. Sexually transmitted infections in pregnant women from sub-Saharan Africa. S Afr J Infect Dis 2021; 36:312. [PMID: 34917679 PMCID: PMC8664065 DOI: 10.4102/sajid.v36i1.312] [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: 06/21/2021] [Accepted: 10/06/2021] [Indexed: 11/05/2022] Open
Abstract
Background Sexually transmitted infections (STIs) are a major health problem in most countries of the world, particularly in developing countries where the resources and technology to diagnose and treat them are limited. Currently, there is limited data on STIs and risk factors for these infections in pregnant women living with human immunodeficiency virus (HIV), especially in sub-Saharan Africa (SSA). This review provides data on the prevalence and risk factors for STIs in pregnant women living with HIV from SSA. This review also describes the association between STIs and HIV on pregnancy and birth outcomes as well as highlights the importance of laboratory-based diagnosis of STIs. Method An electronic search of online databases was used to find and collect relevant research articles connected to the prevalence, adverse pregnancy and birth outcomes, health complications and risk factors associated with STIs and HIV in pregnant women from SSA. The search was limited to articles published in English. Relevant studies were identified by searching literature from January 2001 to date. The search yielded 4709 results. Results In SSA, STIs are highly prevalent in pregnant women and are widely known to be linked with an increased risk of poor maternal and neonatal outcomes. These infections are often asymptomatic and highly prevalent in pregnant women. The screening of STIs in pregnant women living with HIV can reduce the risk of mother-to-child transmission (MTCT) and screening and treatment for STIs can also prevent adverse perinatal outcomes. It is important to recognise regional and national STI epidemics in order to promote STI prevention and control interventions considering the test and treat approach as opposed to syndromic management. Conclusion This review highlights the need to use diagnostic screening methods instead of syndromic STI management in SSA. Moreover, more research into effective prevention and treatment measures for STIs in pregnant women is urgently required.
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Affiliation(s)
- Bongekile Ngobese
- Department of Clinical Medicine Laboratory, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Nathlee S Abbai
- Department of Clinical Medicine Laboratory, College of Health Sciences, University of KwaZulu-Natal, Durban, South Africa
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Carvalho NSD, Eleutério Junior J, Travassos AG, Santana LB, Miranda AE. Brazilian Protocol for Sexually Transmitted Infections, 2020: infections causing vaginal discharge. Rev Soc Bras Med Trop 2021; 54:e2020593. [PMID: 34008718 PMCID: PMC8210494 DOI: 10.1590/0037-8682-593-2020] [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: 02/01/2021] [Accepted: 03/10/2021] [Indexed: 11/22/2022] Open
Abstract
The topic of vaginal discharge is one of the chapters of the Clinical Protocol and Therapeutic Guidelines for Comprehensive Health Care for People with Sexually Transmitted Infections, published by the Brazilian Ministry of Health in 2020. The chapter has been developed based on scientific evidence and validated in discussions with specialists. This article presents epidemiological and clinical aspects associated with vaginal discharge conditions, as well as guidance to health service managers and health professionals. Screening, diagnosing, and treating these conditions, the main complaints among women seeking health services, caused by infectious or non-infectious factors, also are presented. Besides, information is presented on surveillance, prevention, and control actions to promote knowledge of the problem and provide quality care and effective treatment. In healthcare servicing cases of sexually transmitted infections, vaginal discharge is the main referred symptom, common among pregnant women.
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Affiliation(s)
| | - José Eleutério Junior
- Universidade Federal do Ceará, Departamento de Saúde da Mulher, da Criança e do Adolescente, Fortaleza, CE, Brasil
| | | | | | - Angélica Espinosa Miranda
- Ministério da Saúde, Secretaria de Vigilância em Saúde, Brasília, DF, Brasil.,Universidade Federal do Espírito Santo, Departmento de Medicina Social, Vitoria, ES, Brasil
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Miranda AE, da Silveira MF, Pinto VM, Alves GC, de Carvalho NS. Brazilian Protocol for Sexually Transmitted Infections, 2020: infections that cause cervicitis. Rev Soc Bras Med Trop 2021; 54:e2020587. [PMID: 34008716 PMCID: PMC8210491 DOI: 10.1590/0037-8682-587-2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/10/2021] [Indexed: 12/05/2022] Open
Abstract
Infections that cause cervicitis are a topic presented in the "Clinical Protocol and Therapeutic Guidelines for Comprehensive Care for People with Sexually Transmitted Infections", published by the Brazilian Ministry of Health in 2020. The document was developed based on scientific evidence and validated in discussions with experts. This article presents epidemiological and clinical aspects of infections that cause cervicitis and recommendations on screening, diagnosis, and treatment of affected people and their sexual partnerships. Also, it discusses strategies for surveillance, prevention, and control of these infections for health professionals and health service managers involved in the programmatic and operational management of sexually transmitted infections. Expanding access to diagnostic tests and early treatment are crucial for controlling the spread of pathogens that cause cervicitis. Associated factors to cervicitis: sexually active women younger than 25 years old, new or multiple sexual partners, partners with STI, previous history or presence of other STI, and irregular use of condoms.
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Affiliation(s)
| | | | - Valdir Monteiro Pinto
- Secretaria Estadual de Saúde de São Paulo, Programa Estadual de DST/Aids, São Paulo, SP, Brasil
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Del Balzo D, Capmany A, Cebrian I, Damiani MT. Chlamydia trachomatis Infection Impairs MHC-I Intracellular Trafficking and Antigen Cross-Presentation by Dendritic Cells. Front Immunol 2021; 12:662096. [PMID: 33936099 PMCID: PMC8082151 DOI: 10.3389/fimmu.2021.662096] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 03/26/2021] [Indexed: 11/21/2022] Open
Abstract
During cross-presentation, exogenous antigens (i.e. intracellular pathogens or tumor cells) are internalized and processed within the endocytic system and also by the proteasome in the cytosol. Then, antigenic peptides are associated with Major Histocompatibility Complex (MHC) class I molecules and these complexes transit to the plasma membrane in order to trigger cytotoxic immune responses through the activation of CD8+ T lymphocytes. Dendritic cells (DCs) are particularly adapted to achieve efficient antigen cross-presentation and their endocytic network displays important roles during this process, including a sophisticated MHC-I transport dependent on recycling compartments. In this study, we show that C. trachomatis, an obligate intracellular pathogen that exhibits multiple strategies to evade the immune system, is able to induce productive infections in the murine DC line JAWS-II. Our results show that when C. trachomatis infects these cells, the bacteria-containing vacuole strongly recruits host cell recycling vesicles, but no other endosomal compartments. Furthermore, we found that chlamydial infection causes significant alterations of MHC-I trafficking in JAWS-II DCs: reduced levels of MHC-I expression at the cell surface, disruption of the perinuclear MHC-I intracellular pool, and impairment of MHC-I endocytic recycling to the plasma membrane. We observed that all these modifications lead to a hampered cross-presentation ability of soluble and particulate antigens by JAWS-II DCs and primary bone marrow-derived DCs. In summary, our findings provide substantial evidence that C. trachomatis hijacks the DC endocytic recycling system, causing detrimental changes on MHC-I intracellular transport, which are relevant for competent antigen cross-presentation.
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Affiliation(s)
- Diego Del Balzo
- Biochemistry and Immunity Laboratory, School of Medicine, University of Cuyo, IMBECU-CONICET, Centro Universitario, Mendoza, Argentina
| | - Anahí Capmany
- Biochemistry and Immunity Laboratory, School of Medicine, University of Cuyo, IMBECU-CONICET, Centro Universitario, Mendoza, Argentina
| | - Ignacio Cebrian
- Instituto de Histología y Embriología de Mendoza (IHEM)-CONICET, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - María Teresa Damiani
- Biochemistry and Immunity Laboratory, School of Medicine, University of Cuyo, IMBECU-CONICET, Centro Universitario, Mendoza, Argentina
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Nava-Memije K, Hernández-Cortez C, Ruiz-González V, Saldaña-Juárez CA, Medina-Islas Y, Dueñas-Domínguez RA, Aguilera-Arreola MG. Bacterial Vaginosis and Sexually Transmitted Infections in an HIV-Positive Cohort. FRONTIERS IN REPRODUCTIVE HEALTH 2021; 3:660672. [DOI: 10.3389/frph.2021.660672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/15/2021] [Indexed: 11/13/2022] Open
Abstract
The World Health Organization (WHO) and the Joint United Nations Programme on HIV and AIDS (UNAIDS) suggest that sexually transmitted infection (STI) surveillance should include other genital infections and not only human immunodeficiency virus (HIV). To monitor the concomitance of bacterial vaginosis (BV) and STIs in HIV-seropositive (HIV+) and HIV-seronegative (HIV–) patients, a prospective study was conducted in a cohort of 349 volunteers at a clinic specializing in treating STIs in Mexico City. Microbiological and molecular methods were used to detect STIs and dysbiosis in HIV+ and HIV– individuals. The prevalence of infection was higher in HIV+ (69.28%) than in HIV– (54.87%) individuals. BV was the most frequent infection in HIV+ individuals, and polymicrobial infections were 3 times more common in HIV+ individuals than in HIV– individuals (31.48 vs. 10.98%). Behaviors documented in a self-administered questionnaire included low condom use frequency in HIV+ individuals co-infected with BV or a STI. This finding highlights the importance of surveillance using routine microbiological evaluations for the correct management of genital infections in HIV+ patients because in the presence of HIV, the clinical presentations, courses, and therapeutic responses of some STIs can differ from those in patients without HIV infection.
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Predicting Sexually Transmitted Infections Among HIV+ Adolescents and Young Adults: A Novel Risk Score to Augment Syndromic Management in Eswatini. J Acquir Immune Defic Syndr 2021; 85:543-552. [PMID: 32947446 DOI: 10.1097/qai.0000000000002512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND Despite poor predictive power, syndromic screening is standard of care for diagnosing sexually transmitted infections (STIs) in low-resource, high HIV-burden settings. Predictive models may augment syndromic screening when diagnostic testing is not universally available for screening high-risk patient populations such as adolescents and young adults living with HIV. SETTING Four hundred fifteen adolescents and young adults living with HIV, age 15-24 years, participated from 3 clinical sites in Eswatini, provided urine, sexual and medical history, and completed physical examination. METHODS STI cases were defined by a positive Xpert result for Chlamydia trachomatis, Neisseria gonorrhea, or Trichomonas vaginalis. Features predictive of an STI were selected through Least Absolute Shrinkage and Selection Operator (LASSO) with 5-fold cross validation. Various model strategies were compared with parametric area under the Receiver Operator Curve (AUC) estimation and inferences were made with bootstrapped standard errors. RESULTS Syndromic screening poorly predicted STIs [AUC 0.640 95% Confidence Interval (95% CI): 0.577 to 0.703]. A model considering 5 predictors (age group, sex, any sexual activity, not always using condoms (either self or partner), a partner who was 25 years or older, and horizontal or unknown mode of HIV acquisition) predicted STIs better than syndromic screening [AUC: 0.829 (95% CI: 0.774 to 0.885)] and was improved when the risk score was supplemented with leukocyte esterase (LE) testing [AUC: 0.883 (95% CI: 0.806 to 0.961)]. CONCLUSIONS This simple predictive model, with or without leukocyte esterase testing, could improve STI diagnosis in HIV-positive adolescents and young adults in high burden settings through complementary use with syndromic screening and to guide patient selection for molecular STI diagnostic tests.
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Langwenya N, Todd CS, Jones HE, Hoover DR, Hu NC, Ronan A, Myer L. Risk-based screening to identify reproductive tract infection among HIV-infected women desiring use of intrauterine contraceptives. BMJ SEXUAL & REPRODUCTIVE HEALTH 2021; 47:137-143. [PMID: 32611546 PMCID: PMC8020848 DOI: 10.1136/bmjsrh-2019-200494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 05/23/2020] [Accepted: 05/27/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Reproductive tract infections (RTIs) are a major cause of morbidity and mortality, yet RTI testing remains limited in resource-constrained settings. We assessed performance of an existing RTI risk assessment screening tool among women living with HIV (WLHIV) considering intrauterine contraceptive (IUC) use. METHODS We conducted a cross-sectional analysis among WLHIV screened for participation in an IUC trial in Cape Town, South Africa (NCT01721798). RTI testing included Neisseria gonorrhoeae, Chlamydia trachomatis, Trichomonas vaginalis and bacterial vaginosis. Tool scoring was based on five separately scored criteria: (1) age under 25 years, (2) cohabitation with a partner, (3) secondary education, (4) self-reported intermenstrual bleeding and (5) number of current sexual partners and condom use frequency (score 0-5). We assessed tool performance in detecting RTI at 0 vs 1-5, 0-1 vs 2-5 and 0-2 vs 3-5 score thresholds. RESULTS Of 303 women, 52% (n=157) reported antiretroviral therapy use and median age was 31 years. The prevalence of any RTI was 38% (gonorrhoea=7%, chlamydia=11%, trichomoniasis=12% and bacterial vaginosis=18%) and 8% of women had multiple RTIs. Overall, 4%, 27% and 69% of women had screening tool scores of 0, 1 or 2+, respectively. At a threshold of at least one scored criterion, the tool demonstrated high sensitivities (95%-97%) but low specificities (3%-4%) for detecting any RTI. Increasing the score threshold and/or inclusion of abnormal vaginal discharge marginally improved specificity. CONCLUSION The prevalence of RTIs observed in this population was high, and the screening tool had no discriminatory power to detect prevalent RTIs.
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Affiliation(s)
- Nontokozo Langwenya
- Division of Epidemiology and Biostatistics, University of Cape Town, Cape Town, South Africa
- Centre for Infectious Diseases Epidemiology and Research, University of Cape Town, Rondebosch, Western Cape, South Africa
| | - Catherine S Todd
- Global Health, Population, and Nutrition Department, FHI 360, Durham, North Carolina, USA
| | - Heidi E Jones
- Department of Epidemiology & Biostatistics, City University of New York, New York, New York, USA
| | - Donald R Hoover
- Department of Statistics and Biostatistics, Rutgers University, New Brunswick, New Jersey, USA
| | - Nai-Chung Hu
- Division of Epidemiology and Biostatistics, University of Cape Town, Cape Town, South Africa
- Centre for Infectious Diseases Epidemiology and Research, University of Cape Town, Rondebosch, Western Cape, South Africa
| | - Agnes Ronan
- Centre for Infectious Diseases Epidemiology and Research, University of Cape Town, Rondebosch, Western Cape, South Africa
| | - Landon Myer
- Division of Epidemiology and Biostatistics, University of Cape Town, Cape Town, South Africa
- Centre for Infectious Diseases Epidemiology and Research, University of Cape Town, Rondebosch, Western Cape, South Africa
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11
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Miranda AE, Silveira MFD, Pinto VM, Alves GC, Carvalho NSD. [Brazilian Protocol for Sexually Transmitted Infections 2020: infections that cause cervicitis]. ACTA ACUST UNITED AC 2021; 30:e2020587. [PMID: 33729399 DOI: 10.1590/s1679-4974202100008.esp1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 09/16/2020] [Indexed: 11/22/2022]
Abstract
Infections that cause cervicitis are a topic presented in the "Clinical Protocol and Therapeutic Guidelines for Comprehensive Care for People with Sexually Transmitted Infections", published by the Brazilian Ministry of Health in 2020. The document was developed based on scientific evidence and validated in discussions with experts. This article presents epidemiological and clinical aspects of infections that cause cervicitis, as well as recommendations on screening, diagnosis and treatment of affected people and their sexual partnerships. In addition, it discusses strategies for surveillance, prevention and control of these infections for health professionals and health service managers involved in the programmatic and operational management of sexually transmitted infections. Expanding access to diagnostic tests and early treatment are crucial for controlling the spread of pathogens that cause cevicitis.
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Affiliation(s)
| | | | - Valdir Monteiro Pinto
- Secretaria Estadual de Saúde de São Paulo, Programa Estadual de DST/Aids, São Paulo, SP, Brasil
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12
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Carvalho NSD, Eleutério Júnior J, Travassos AG, Santana LB, Miranda AE. [Brazilian Protocol for Sexually Transmitted Infections 2020: infections causing vaginal discharge]. ACTA ACUST UNITED AC 2021; 30:e2020593. [PMID: 33729401 DOI: 10.1590/s1679-4974202100007.esp1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 09/30/2020] [Indexed: 11/22/2022]
Abstract
The topic of vaginal discharge is one of the chapters of the Clinical Protocol and Therapeutic Guidelines for Comprehensive Care for People with Sexually Transmitted Infections, published by the Brazilian Ministry of Health in 2020. The chapter has been developed based on scientific evidence and validated in discussions with specialists. This article presents epidemiological and clinical aspects related to vaginal discharge conditions, as well as guidelines for health service managers and health professionals about screening, diagnosing and treating these conditions, which are one of the main complaints among women seeking health services, and which may be caused by infectious or non-infectious factors. In addition, information is presented on strategies for surveillance, prevention and control actions, in order to promote knowledge of the problem and provision of quality care and effective treatment.
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Affiliation(s)
| | - José Eleutério Júnior
- Universidade Federal do Ceará, Departamento de Saúde da Mulher, da Criança e do Adolescente, Fortaleza, CE, Brasil
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13
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Bruxelle JF, Trattnig N, Mureithi MW, Landais E, Pantophlet R. HIV-1 Entry and Prospects for Protecting against Infection. Microorganisms 2021; 9:microorganisms9020228. [PMID: 33499233 PMCID: PMC7911371 DOI: 10.3390/microorganisms9020228] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/19/2021] [Accepted: 01/20/2021] [Indexed: 12/19/2022] Open
Abstract
Human Immunodeficiency Virus type-1 (HIV-1) establishes a latent viral reservoir soon after infection, which poses a major challenge for drug treatment and curative strategies. Many efforts are therefore focused on blocking infection. To this end, both viral and host factors relevant to the onset of infection need to be considered. Given that HIV-1 is most often transmitted mucosally, strategies designed to protect against infection need to be effective at mucosal portals of entry. These strategies need to contend also with cell-free and cell-associated transmitted/founder (T/F) virus forms; both can initiate and establish infection. This review will discuss how insight from the current model of HIV-1 mucosal transmission and cell entry has highlighted challenges in developing effective strategies to prevent infection. First, we examine key viral and host factors that play a role in transmission and infection. We then discuss preventive strategies based on antibody-mediated protection, with emphasis on targeting T/F viruses and mucosal immunity. Lastly, we review treatment strategies targeting viral entry, with focus on the most clinically advanced entry inhibitors.
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Affiliation(s)
- Jean-François Bruxelle
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
- Correspondence: (J.-F.B.); (R.P.)
| | - Nino Trattnig
- Chemical Biology and Drug Discovery, Utrecht University, 3584 CG Utrecht, The Netherlands;
| | - Marianne W. Mureithi
- KAVI—Institute of Clinical Research, College of Health Sciences, University of Nairobi, P.O. Box, Nairobi 19676–00202, Kenya;
| | - Elise Landais
- IAVI Neutralizing Antibody Center, La Jolla, CA 92037, USA;
- Department of Immunology and Microbiology, Scripps Research, La Jolla, CA 92037, USA
| | - Ralph Pantophlet
- Faculty of Health Sciences, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
- Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada
- Correspondence: (J.-F.B.); (R.P.)
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14
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Kengne-Nde C, de Dieu Anoubissi J, Loni-Ekali G, Nguefeu-Nkenfou C, Moussa Y, Messeh A, Fokam J, Zeh-Meka A, Snayeul-Wawo D, Tseuko D, Ngo-Nemb M, Kob D, Billong SC, Bonono L, Elat JB. Highlighting a population-based re-emergence of Syphilis infection and assessing associated risk factors among pregnant women in Cameroon: Evidence from the 2009, 2012 and 2017 national sentinel surveillance surveys of HIV and syphilis. PLoS One 2020; 15:e0241999. [PMID: 33186360 PMCID: PMC7665812 DOI: 10.1371/journal.pone.0241999] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Accepted: 10/26/2020] [Indexed: 11/18/2022] Open
Abstract
Background Syphilis and HIV can be transmitted from pregnant women to their children and they remain a public health problem in Africa. Our study aimed to determine the trends of seroprevalence of HIV/syphilis co-infection and syphilis infection overtime through the national surveillance system in Cameroon and to explore associated risk factors. Methods We conducted cross-sectional studies of HIV and syphilis, targeting each year 7000 first antenatal care (ANC-1) attendees at the same sites during the 2009, 2012 and 2017 sentinel surveillance surveys. Pregnant women were enrolled at their ANC-1, sociodemographic and clinical information were collected. HIV and Syphilis test were performed by serial algorithm as per the national guidelines. Trends were assessed for HIV, syphilis and HIV/syphilis by estimating seroprevalence from cross-sectional studies. Associated risk factors were explored using multinomial logistic regression with 4 outcomes: HIV/syphilis co-infection, HIV infection only, syphilis infection only and no infection. Results Overall, 6 632, 6 521 and 6 859 pregnant women were enrolled in 2009, 2012 and 2017 respectively. In 2017, a total of 3 901 pregnant women enrolled were tested for syphilis. Almost half of them (47.9%) were living in urban area and were aged less than 25 years (44.7%). While HIV epidemic was on a decline (from 7.6% (95% CI: 6.99–8.28) in 2009 to 5.7% (95% CI: 4.93–6.4) in 2017), a huge significant increase of syphilis prevalence was observed (from 0.6% (95% CI:0.40–0.80) in 2009 to 5.7% (95% CI:4.93–6.40) in 2017). Pregnant women residing in rural areas were more likely to be infected with syphilis than those living in the urban area (aOR = 1.8 [95% CI: 1.3–2.4]). Unmarried pregnant women were three time more likely to be infected by HIV/Syphilis Co-infection than married, cohabiting, widow or divorced pregnant women (aOR = 2.8 [95% CI: 1.3–2.4]). Furthermore; living in Northern region was associated with a lower risk of being infected with HIV (aOR = 0.6 [95% CI: 0.5–0.9]) and Syphilis infection (aOR = 0.6 [95% CI: 0.4–0.9]). Conclusion The epidemiological dynamics of syphilis suggests a growing burden of syphilis infection in the general population of Cameroon. Our findings support the fact that while emphasizing strategies to fight HIV, huge efforts should also be made for strategies to prevent and fight syphilis infection especially among HIV positive women, in rural area, and southern regions.
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Affiliation(s)
- Cyprien Kengne-Nde
- Central Technical Group, National AIDS Control Committee, Yaounde, Cameroon
| | | | - Gabriel Loni-Ekali
- Central Technical Group, National AIDS Control Committee, Yaounde, Cameroon
| | - Celine Nguefeu-Nkenfou
- Chantal BIYA International Reference Centre (CBIRC) for research on HIV/AIDS prevention and management, Yaounde, Cameroon.,Higher Teachers' Training College, University of Yaounde I, Yaounde, Cameroon
| | - Yasmine Moussa
- Central Technical Group, National AIDS Control Committee, Yaounde, Cameroon
| | - Arlette Messeh
- Central Technical Group, National AIDS Control Committee, Yaounde, Cameroon
| | - Joseph Fokam
- Chantal BIYA International Reference Centre (CBIRC) for research on HIV/AIDS prevention and management, Yaounde, Cameroon.,Faculty of Medicine and Biomedical Sciences (FMBS), University of Yaounde 1, Yaounde, Cameroon.,National HIV Drug Resistance Surveillance and Prevention Working Group, National AIDS Control Committee, Yaoundé, Cameroon
| | - Albert Zeh-Meka
- Central Technical Group, National AIDS Control Committee, Yaounde, Cameroon
| | - Denis Snayeul-Wawo
- Central Technical Group, National AIDS Control Committee, Yaounde, Cameroon
| | - Dorine Tseuko
- National Laboratory of Public Health, Yaounde, Cameroon
| | - Marinette Ngo-Nemb
- Central Technical Group, National AIDS Control Committee, Yaounde, Cameroon
| | | | - Serge-Clotaire Billong
- Central Technical Group, National AIDS Control Committee, Yaounde, Cameroon.,Faculty of Medicine and Biomedical Sciences (FMBS), University of Yaounde 1, Yaounde, Cameroon.,National HIV Drug Resistance Surveillance and Prevention Working Group, National AIDS Control Committee, Yaoundé, Cameroon
| | - Leonard Bonono
- Central Technical Group, National AIDS Control Committee, Yaounde, Cameroon
| | - Jean-Bosco Elat
- Central Technical Group, National AIDS Control Committee, Yaounde, Cameroon.,National HIV Drug Resistance Surveillance and Prevention Working Group, National AIDS Control Committee, Yaoundé, Cameroon
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15
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Singh R. Single-Cell Sequencing in Human Genital Infections. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1255:203-220. [PMID: 32949402 DOI: 10.1007/978-981-15-4494-1_17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
Human genital infections are one of the most concerning issues worldwide and can be categorized into sexually transmitted, urinary tract and vaginal infections. These infections, if left untreated, can disseminate to the other parts of the body and cause more complicated illnesses such as pelvic inflammatory disease, urethritis, and anogenital cancers. The effective treatment against these infections is further complicated by the emergence of antimicrobial resistance in the genital infection causing pathogens. Furthermore, the development and applications of single-cell sequencing technologies have open new possibilities to study the drug resistant clones, cell to cell variations, the discovery of acquired drug resistance mutations, transcriptional diversity of a pathogen across different infection stages, to identify rare cell types and investigate different cellular states of genital infection causing pathogens, and to develop novel therapeutical strategies. In this chapter, I will provide a complete review of the applications of single-cell sequencing in human genital infections before discussing their limitations and challenges.
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Affiliation(s)
- Reema Singh
- Department of Biochemistry, Microbiology and Immunology, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada. .,Vaccine and Infectious Disease Organization-International Vaccine Centre, Saskatoon, SK, Canada.
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16
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Majzoobi MM, Sobhan MR, Zamani M, Moradi A, Khosravi S, Saadatmand A. The Prevalence of Human Immunodeficiency Virus Infection in Patients with Sexually Transmitted Diseases. Adv Biomed Res 2020; 9:11. [PMID: 32318360 PMCID: PMC7147514 DOI: 10.4103/abr.abr_233_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/08/2020] [Accepted: 01/28/2020] [Indexed: 11/05/2022] Open
Abstract
Background: Human immunodeficiency virus (HIV) transmission pattern in Iran has been changed from injection drug to sexual contact. Lack of accurate assessment of HIV in people with sexually transmitted diseases (STDs) in Iran prompted us to conduct this study to determine the frequency of HIV infection in these patients. Materials and Methods: In this cross-sectional study which conducted in 2016–2017, overall, 190 patients with STDs referring to two hospitals of Hamadan were enrolled in the study. All of the patients were examined for HIV in the first visit by rapid test and then 1 and 4 months later by the 4th generation ELISA. A questionnaire including demographic data, clinical manifestations, and high-risk behaviors was completed for all of the referring people. The collected data were analyzed using appropriate statistical tests. Results: Of 190 patients, 126 (66.3%) were female with a mean age of 34.1 ± 10.1 years and 64 (33.7%) were male with a mean age of 30.8 ± 7.8 years. One hundred twenty-eight (67.4%) got married, 73 (38.4%) and 76 (40%) had a diploma and postgraduate education, respectively, 32 (16.8%) mentioned the history of unsafe sex, and 23 (12.1%) had used condoms continuously during sexual contacts. The most common STDs were reported genital warts, 107 patients (56.3%), vaginal discharge (28, 14.7%), and genital ulcer (33, 17.4%). Two (1%) patients were positive for HIV at the first visit. Conclusion: Patients with STDs should be considered as an important source of HIV transmission, so clinicians should pay more attention to screening these patients for HIV infection.
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Affiliation(s)
- Mohammad Mahdi Majzoobi
- Department of Infectious Diseases, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.,Brucellosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Reza Sobhan
- Psoriasis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.,Department of Dermatology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mehrangiz Zamani
- Department of Obstetrics and Gynecology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Abbas Moradi
- Department of Community Medicine, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Sahar Khosravi
- Department of Infectious Diseases, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Ali Saadatmand
- Brucellosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
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