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(P4) Implementing remote data collection methods in a survey of sexual health in the British population (National Survey of Sexual Attitudes and Lifestyles; Natsal)

(P1) Antibiotic knowledge amongst US adults who have ever been tested for a sexually transmitted infection, 2022

(P2) Exploring Relationships between Dating Apps and Risky Sexual Behaviors among College Students: An Exploratory Pilot Study

(P3) Oropharynx-related sex acts dominate sexual behavioural patterns in men who have sex with men: a 12-week cohort study

(P6-LB) Factors associated with chemsex and sexually transmitted infection positivity in individuals attending self-screening clinics: A cross-sectional study in Québec, Canada

(P7) Total IgG serum antibody response in extragenital Chlamydia trachomatis infections

(P8) Survey of genomic features putatively contributing to antimicrobial resistance in Chlamydia trachomatis

(P9) Lateral gene transfer-mediated recombination in Chlamydia trachomatis leads to transitional genomic stages that facilitate tropism to different female and male anatomic sites

(P10) HLA-DQB1*06 and Select Neighboring HLA Variants Predict Chlamydia Reinfection Risk

(P11) Chlamydia trachomatis genovar distribution in heterosexual men with acute nongonococcal urethritis compared to historical genovar data in women

(P19) Diversity in sequence types of Chlamydia trachomatis and inflammatory profiles in adolescent girls and young women from Cape Town and Johannesburg, South Africa

(P21) Trends in Chlamydia trachomatis IgG seroprevalence in the general population of the Netherlands over 20 years

(P22) The Relationship Between Past Incarceration and Chlamydia Infection in Young Black Men in New Orleans

(P23) Increasing prevalence and clinical presentation of the new L2b/D-Da recombinant Chlamydia trachomatis lymphogranuloma venereum (LGV) strain in British Columbia, Canada

(P24) Systemic Anti-Chlamydial Antibodies do not Confer Protection from Extragenital Chlamydia trachomatis (CT) Infection

(P12-LB) Development of a versatile system for targeted gene deletion in Chlamydia trachomatis

(P13-LB) Buenos Aires Lymphogranuloma venereum outbreak reveals novel Chlamydia trachomatis sequence type and increased prevalence of uncommon strain, ST2, through high-resolution multilocus sequence typing

(P14-LB) Cell-free screening and production of chlamydial membrane bound proteins

(P15-LB) Developing a Synergistic, Multi-Epitope Antigen for use in a Cross-Serovar Chlamydia Trachomatis Vaccine.

(P26) Medical Male Circumcision (MMC) and HIV Testing Practices Among Men: Evidence from Zambia Demographics & Health Survey

(P27) Factors influencing the uptake of voluntary Medical Male Circumcision (VMMC) among boda-boda riders aged 18-49 years in Hoima, Western Uganda.

(P28) Effectiveness of a metaverse-based intervention to improve condom use self-efficacy and safe sexual behavior among college students. Randomized controlled trial.

(P29) Condom Use Experiences, Beliefs, and Barriers Among Blind and Low-Vision Adults

(P30) Validity of self-reported recent condomless sex among couples in Vietnam

(P31) Interventions promoting condom use among young heterosexual people: a systematic review

(P32) Staff reductions and budget cuts to local health department STD programs in the United States before and during the COVID-19 pandemic

(P34) Impact of COVID-19 on Sexually Transmitted Infections and Nurse-led HIV Pre-Exposure Prophylaxis (PrEP) Initiation and Retention at Cool Aid Community Health Centre for Men Who Have Sex with Men (MSM)

(P35) Can prior sexual risk behaviors predict adherence to COVID-19 preventative behaviors among young Black men?

(P36) Inequalities in health and wellbeing of people reporting a minority sexual identity in the first year of the COVID-19 pandemic in Britain: a quasi-representative webpanel survey (Natsal-COVID Wave 2)

(P38) Impact of the COVID-19 pandemic on HIV and sexually transmitted infections testing and diagnosis in Lebanon

(P40) STI Rates among Patients Tested at a Community-Based Organization Before, During, and After CoVID Shutdowns

(P41) Impact of COVID-19 pandemic on sexually transmitted infections – a study from a tertiary care centre

(P42) Impact of the COVID-19 Pandemic on a Near Point of Care STI Management & Treatment

(P43) Lasting STI testing site closures and innovations from the COVID-19 Pandemic in a Midwestern City

(P44) Redirection of a COVID-19 contact tracing program: A pilot to expand gonorrhea and chlamydia partner services

(P45) The impact of the COVID19 pandemic on the quarterly numbers of STI tests among Medicaid patients using CMS Medicaid claims data, 2019-2020

(P46) Impact of the COVID-19 pandemic on HIV and syphilis screening and case characteristics in British Columbia, Canada: an Interrupted Time Series Analysis

(P47) STI Rates among a University Student Population Before, During, and After Covid-19 Shutdowns

(P48) Covid-19 Stay at Home Period Effects on Provider Visits and HIV Viral Load Results

(P49) Impact of the COVID-19 pandemic on syphilis in Germany

(P50) Trends in STI testing and diagnosis rates during the COVID-19 pandemic at a large urban tertiary care center, and the role of the emergency department in STI care

(P51) Overall impact in sexually transmitted infection testing due to stay-home orders by states in the early phases of U.S. COVID-19 pandemic using administrative claims data from 2019-2020.

(P52) Quantifying the impact of COVID-19 operational changes on syphilis, gonorrhea, and chlamydia testing and treatment at Baltimore City Health Department Sexual Health Clinics

(P53) Maintaining access to HIV services to persons living with HIV amid the COVID-19 pandemic in Nepal

(P54) Alarmingly High Levels of Cephalosporin and Macrolide resistance in Oropharyngeal commensal Neisseria spp. from male patients, Seattle, WA, 2019–2022

(P55) Implementing routine culturing and antimicrobial susceptibility testing for Neisseria gonorrhoeae within a HIV pre-exposure prophylaxis program in Hanoi, Vietnam

(P56) Evaluation of the Allplex NG&DR Assay for molecular detection and prediction of ciprofloxacin and azithromycin resistance in Neisseria gonorrhoeae

(P57) Antimicrobial Resistance of Neisseria gonorrhoeae in Germany 2016-2022

(P58) Antimicrobial susceptibilities of Neisseria gonorrhoeae in Canada, 2017-2021

(P59) Patterns of antimicrobial susceptibility in Neisseria gonorrhoeae from 5 cities in Vietnam

(P60) Molecular antimicrobial resistance surveillance of Neisseria gonorrhoeae in Germany

(P61) Azithromycin use and antimicrobial resistance in Neisseria gonorrhoeae before and after a national treatment guideline change, King County, WA, USA, 2017-2022

(P63) The Enhanced Gonococcal Antimicrobial Surveillance Program (EGASP) reveals increasing cases of meningococcal urethritis among males in sentinel clinics in Metro Manila, Philippines

(P64) High background level of a reduced susceptible phenotype to extended-spectrum cephalosporins in oropharyngeal Neisseria species in a setting without ceftriaxone resistant Neisseria gonorrhoeae

(P65) Minimum inhibitory concentration (MIC) creep of selected antimicrobials used for treating Neisseria gonorrhoeae observed in an urban setting in the Philippines from July 2018 to June 2022

(P66) Despite absence of ceftriaxone resistance in the Netherlands many oropharyngeal Neisseria gonorrhoeae isolates have a mosaic penA gene similar to commensal Neisseria species

(P67) Trends in Tetracycline Resistance in Neisseria gonorrhoeae as Sexually Transmitted Infection Demands for Doxycycline Increase, Gonococcal Isolate Surveillance Project (GISP), 1987 - 2022*

(P68) Gonorrhoea Undetected Resistance Laboratory Study (GURLS): a case-finding study for ceftriaxone-resistant Neisseria gonorrhoeae in England

(P69) Reduced susceptibility of pharyngeal Neisseria gonorrhoeae infections to current recommended therapeutics in England and Wales using national surveillance data (GRASP)

(P72) Neisseria gonorrhoeae sequence typing for antimicrobial resistance (NG-STAR) for cases of disseminated gonococcal infection (DGI)

(P70-LB) Extended-spectrum ß-lactamase and macrolide resistance in Neisseria gonorrhoeae in western Kenya

(P71-LB) Implementing increased gonococcal culture surveillance in Massachusetts

(P73) Development of a novel human oral tissue model of gonorrhoea

(P74) Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) based stable isotope labelling for rapid drug susceptibility testing in Neisseria gonorrhoeae.

(P75) High bacterial load in Neisseria gonorrhea and Chlamydia trachomatis co-infections does not influence symptoms

(P77) Development and validation of a high-throughput serum bactericidal assay to measure functional antibody responses to Neisseria gonorrhoeae

(P78) Development of a lateral flow assay for the detection of Neisseria gonorrhoeae to support aetiological patient management and to ensure antibiotic stewardship

(P79) Oropharyngeal gonorrhea among men with symptomatic urethritis seeking treatment at government health centers in Kampala, Uganda

(P80) A Chocolate Agar Slant-Paraffin Oil Transport Medium Supports Viability of Neisseria gonorrheoae for 72 hours

(P81) Improving Gonorrhoea Molecular Diagnostics: Genome Mining-Based Identification of Identical Multi-Repeat Sequences (IMRS) in Neisseria gonorrhoeae Genome

(P82) High burden of urogenital gonorrhea and low HIV prevalence in young Ugandan men with urethral discharge syndrome: An opportunity for STI and HIV prevention interventions

(P83) Effect of antibiotic treatment on commensal Neisseria species load and presence in the oropharynx.

(P84) Diagnostic performance of a lateral flow assay for point-of-care detection of Neisseria gonorrhoeae in syndromic management settings

(P85) Patient-level and system-level factors related to delayed adoption of CDC Neisseria gonorrhoeae treatment guidelines

(P88) The epidemiology of Neisseria gonorrhoeae in the Middle East and North Africa: Systematic review, meta-analyses, and meta-regressions

(P89) Epidemiology of Neisseria gonorrhoeae in Australia, New Zealand, and the Pacific Islands: Systematic review, meta-analyses, and meta-regressions

(P90) Neisseria gonorrhoeae and hypertensive disorders of pregnancy: Is there effect modification by maternal characteristics?

(P91) Genital and Extragenital Chlamydia and Gonorrhea infections among Men and Women from a Clinical trial Evaluating Test Performance in Extragenital Samples

(P92) Census tract-level social vulnerability and gonorrhea in Ohio: results from the STD Surveillance Network 2020-2021

(P93) Epidemiology of Neisseria gonorrhoeae in Europe: Systematic review, meta-analyses, and meta-regressions

(P94) Anorectal Neisseria gonorrhoeae infection in a large population of women tested at sexual health centres in the Netherlands

(P95) Trends in Estimated Rates of Reported Neisseria gonorrhoeae Cases by Anatomic Site, Seven U.S. Jurisdictions, STD Surveillance Network, 2016 – 2021

(P96) Disseminated Neisseria gonorrhoeae cases in Canada, 2016-2021

(P97) Incidence of repeat gonorrhea diagnoses and associated characteristics, SSuN Network, 2016-2019

(P98) Epidemiology of Neisseria gonorrhoeae in Asia: Systematic review, meta-analyses, and meta-regressions

(P100) Neisseria gonorrhoeae multi antigen sequence type for strain typing and matched clinical nucleic acid amplification test results on samples transported in cobas PCR media

(P86-LB) Evaluation of a lateral flow assay for point-of-care detection of Neisseria gonorrhoeae infection in asymptomatic individuals in South Africa

(P99-LB) Large surge in gonorrhoea diagnoses among heterosexual young people with a high proportion of throat infections

(P101) Quality assessment of the Brazilian guidelines for Sexually Transmitted Infections that cause urethral discharge, using the AGREE II instrument

(P104) Success through Partnerships: Lessons Learned from an HIV/HCV Testing Program in Rural Washington State

(P105) The impact of Medicaid Expansion on the reporting of nationally notifiable STDs: A causal inference study

(P107) How can we widen access to online sexual healthcare amongst underserved communities? Using behavioural science tools to develop recommendations, within the SEQUENCE Digital Research Programme

(P108) Optimizing healthcare resource allocation for HIV testing in China

(P109) Missed Opportunities for Concurrent HIV and Syphilis Testing Among Patients At-Risk for STIs in a Large, Urban, Safety Net Hospital

(P112) Expanding STI testing to private pharmacies in Kenya: pharmacy provider perceptions of acceptability, feasibility, and costs

(P113) Addressing the Syndemic of STIs and Substance Use through Service Integration

(P114) Online and provider-based testing for sexually-transmitted and bloodborne infections: describing patterns of use among repeat testers in British Columbia, Canada

(P115) The need for improved sexual health care of racially minoritised communities and the introduction of the Racially Minoritised Communities Special Interest Group (RMC SIG): what have we learned so far

(P116) Overcoming Pennsylvania’s Collaborative Practice Regulation Barriers to Forge Pharmacy Partnerships for Expanded STI Services

(P117) Ensuring quality patient care for sexually transmitted infections regardless of service type

(P118) Prosocial Interventions to Improve Health Outcomes: A Global Mixed Methods Synthesis and Systematic Review of Trials

(P119) Lessons learned from the introduction of Multilingual HIV and syphilis testing events for foreign residents in Tokyo

(P110) Clinical effectiveness, sustainability and quality of a large, decentralised molecular point-of-care testing network for STIs in regional and remote primary care clinics in Australia

(P123) Effect of HIV infection on immune cell substrate utilization and mitochondrial homeostasis

(P127) Facilitators and barriers of pediatric adherence to anti-retroviral treatment in perinatally infected, HIV positive infants

(P129) HIV Empathy, Education & Empowerment (HIVE3): Feasibility and Acceptability ofMobile-App Based Peer Support for HIV Positive Men who have Sex with Men

(P136) Crowdsourced partner services among men who have sex with men living with HIV: A pilot randomized controlled trial in China

(P138) Trends in Resource Utilization for Emergency Department Visits Associated with HIV in the United States, 2009 to 2019

(P139) Understanding the Burden of Antimicrobial Resistance among HIV Patients in Nigeria: A Systematic Review

(P140) Time above 1500 copies/mL: potential for ongoing transmission among patients linked to HIV care from public Sexual Health Clinics

(P141) Sentinel surveillance to assess HIV/HCV coinfection prevalence across Southern Texas

(P142) Impact of HIV on the Latinx Community in San Antonio

(P144) STI prevalence among young adults diagnosed with HIV in childhood and adulthood: a cross-sectional survey in Zimbabwe

(P146) Factors Associated with Self-Reported HIV Testing and HIV positivity Among Young Black Men Having Sex with Women in New Orleans, LA

(P148) Using the Medical Monitoring Project to Assess Uptake of Sexually Transmitted Infection Screening and Prophylaxis among People Living with Diagnosed HIV

(P153) Developing Consensus on Improving Adolescent and Young Adult Informed Consent in HIV Research in Low- and Middle-Income Countries: Results of A Modified Delphi Process

(P154) HIV Prevention Learning Community: Improving HIV Services through a Peer-to-Peer Learning Community

(P155) You're the Cure

(P156) The impact of decentralization and use of rapid HIV tests in Brazil: a tool for early patient care

(P149-LB) MEASURING THE IMPACT OF TEEN CLUB IN MWANZA, TANZANIA: PRELIMINARY RESULTS FOR MEDICATION ADHERENCE AND CLINICAL MARKERS

(P151-LB) Self-perception of HIV infection risk and its associated factors in the general population of a southern Brazilian state.

(P158) Syndemic Profiles of Human Papillomavirus (HPV) Infection in United States Adults

(P159) Prevalence And Incidence of Human Papillomavirus Infection Among African Women Randomized to Depot Medroxyprogesterone Acetate, Copper Intrauterine Device, or Levonorgestrel Implant for Contraception

(P161) High-risk human papilloma virus among HIV-negative men who have sex with men in Benin, West Africa

(P162) Disparities in HPV vaccination among trans women in Brazil

(P163) A Retrospective Chart Review of Anal Dysplasia Screening Practices among High-Risk Populations in an Academic Medical System

(P164) HPV prevalence and risk factors among Women Living with HIV attending public health services in Brazil: pilot implementation of HPV-DNA tests based on self-collection of vaginal samples

(P167) Examination of Current Implementation Research Evidence Supporting HPV Vaccination Starting at Age 9

(P168) Pilot implementation study of the network service for HPV-DNA tests with vaginal self-collected samples from women living with HIV assisted in the Brazilian Unified Health System.

(P169) Real-world Performance versus Regulatory Data of Herpes Simplex Virus Type-2 Antibody Tests

(P171) Does Genital Herpes Symptom History Predict Herpes Simplex Virus Type 2 Antibody Positivity?

(P172) Epidemiology of herpes simplex virus type 1 and genital herpes in Australia and New Zealand: Systematic review, meta-analyses, and meta-regressions

(P173) Consensus for Integrating the Genital InFlammation Test (GIFT) device into Sexually Transmitted Infections management algorithms: Results from a two-round modified Delphi process

(P174) Alcohol Use Disorders and Inconsistent Condom Use Among Sex Workers in India

(P175) The sexual health experiences and motivators of Black heterosexual men in London

(P176) Can Oxytocin Measure the Recipient Warm Glow in Pay-It-Forward Interventions? Lessons from a Quasi-Experimental Study in Sexual Health Services

(P177) Understanding the Structural Factors that Influence Female Sex Work in Kampala

(P178) Adverse Childhood Experiences & Sexually Transmitted Infections Among Youth in Zimbabwe

(P179) Sexually Transmitted Infections Among Youth Exposed to Violence & Mental Health Outcomes in Zimbabwe

(P180) STI Testing and Time to Reinfection Among Residents In An Urban Juvenile Detention Center 2016-2019

(P182) Sexual health and sexually transmitted infections prevention among people who have sex between vulvas: a Brazilian analysis

(P183) Are sexual minority women more at risk for rectal sexually transmitted infections than their heterosexual counterparts? STD Surveillance Network, January 2020-August 2022

(P184) Incongruence and Tensions between Theory and Practice in Community-Based Participatory Research: Lessons Learned from Researching with Sex Workers in Singapore

(P186-LB) Lessons Learnt from Trend Changes in Chinese Drug Users and their HIV/HCV Prevalence , 1999- 2021

(P187-LB) Co-Designing a multi-level intervention to engage Black cisgender women in HIV prevention and PrEP awareness

(P190) Molecular-based Testing for the Detection of Rectal and Oropharyngeal* Chlamydia trachomatis and Neisseria gonorrhoeae Infections

(P191) Validation of pooling triple site samples to detect STIs using the Sacace Neisseria gonorrhoeae/Chlamydia trachomatis/Mycoplasma genitalium/Trichomonas vaginalis Real-TM kit.

(P192) Usability Assessment of a High-Throughput Molecular Microbiology Diagnostic Instrument

(P193) Performance of An Assay Agnostic Transport Media on the Roche cobas6800

(P194) How use of a cut-off index (COI) helps clinicians manage reactive HIV test results that arise from service users accessing Sexual Health London (SHL), a regional STI/HIV postal testing service

(P224) Sexualised drug use and sexually transmitted infections among adolescent men who have sex with men

(P225) "I'll tell you what I want, what I really, really want": The health and wellbeing needs of 'Male Sex Workers'

(P226) Sociodemographic characteristics, community engagement, and stigma among Men who have Sex with Men (MSM) who attend MSM-led versus public sexual health clinics: A cross-sectional survey in China

(P230) Group sex and behavior changes among men who have sex with men in Southern California

(P231) Sex venue preferences and HIV/STIs risks for Chinese men who have sex with men: A latent class analysis

(P233) Neisseria gonorrhoeae and Chlamydia trachomatis positivity by symptom status and anatomic site of infection among men who have sex with men in a HIV Pre-exposure Prophylaxis program in Hanoi, Vietnam

(P234) Patient outcomes and perceptions of partner services among MSM diagnosed with early syphilis in King County, WA

(P235) The impact of COVID-19 on Sexual and HIV testing behaviors among MSM tested for HIV in China: A Serial Trend Analysis

(P236) Sex toy sharing and post-exposure prophylaxis (PEP) among gay, bisexual and other men having sex with men (GBM); results from the Engage Cohort Study

(P237) Comparing men who have sex with women, men who have sex with men only and men who have sex with men and women visiting a public STD clinic

(P239) Advancing community engaged research methods: A qualitative study of MSM community experiences within a Chinese HIV stigma study

(P240) Engaging vulnerable populations to co-create sexually transmitted infections (STI) testing strategies: learning from the MSM community in China

(P238-LB) Association of STI screening and prevalent STI cases in MSM at a Sexual Health Clinic

(P197) Mpox knowledge, vaccination and intention to reduce sexual risk practices among men who have sex with men and transgender people : a cross-sectional study in Victoria, Australia

(P198) Impact of 2022 Mpox Outbreak on sexual practices of bathhouse clientele

(P199) Potential mpox transmission among college-attending 18-25-year-olds with opposite-sex contacts in the United States

(P200) Mpox knowledge and vaccine willingness among a representative analysis of adults in Pennsylvania

(P204) Persistence of monkeypox virus at oral and rectal sites following resolution of cutaneous lesions.

(P205) Demographic factors and sexual history of people diagnosed with mpox and people vaccinated against mpox at a central London sexual health and HIV clinic

(P206) Severe Mpox in the Setting of Advanced HIV: Case Review and Lessons Learned

(P207) Sexually Transmitted Infections Among Persons with Mpox in Brazil from June to December 2022

(P208) Monkeypox among People Living with HIV, Chicago, IL June 1-November 30, 2022.

(P209) The impact of the mpox epidemic on the trends of sexually transmitted infections among male HIV positive individuals and HIV PrEP users in Belgium. Results from an STI clinic.

(P210) Characteristics of Mpox infections in Louisiana in the 2022 Outbreak

(P211) Monkeypox/Syphilis coinfection- is this the new challenge in combating the Great Imitator?

(P212) Development and Validation of Machine Learning and Deep Learning Models to Identify Human Monkeypox

(P213) Lack of detectable antibodies to mpox in infected individuals

(P214) Extragenital chlamydia and gonorrhea among persons diagnosed with mpox in Chicago, Illinois (June 1, 2022-September 17, 2022)

(P216) Evaluation of Public Health Contact Tracing for Mpox — Ten U.S. Jurisdictions, May 17–July 31, 2022

(P217) Low prevalence of asymptomatic Mpox virus in men attending sexual health services for HIV pre-exposure prophylaxis in England

(P219) Mpox vaccine uptake and associated factors among transgender people and gay, bisexual and other men clients of an urban sexually-transmitted infection clinic in Vancouver, British Columbia

(P220) Understanding the Impact of Mpox on Sexual Health Clinical Services: A National Knowledge, Attitudes, and Practices Survey – United States, 2022

(P221) Attitudes and Barriers Regarding Mpox Vaccine Among Unvaccinated Men Who Have Sex with Men

(P222) Building trust in risk communications and community engagement during the mpox outbreak in Ireland

(P223) The Dilemma of Public Health Communication Related to Mpox

(P241) Enhanced and prolonged performance by transcription-mediated amplification in comparison with real-time qPCR for detection of Mycoplasma genitalium in urine

(P244) Phenotypic antibiotic resistance of Mycoplasma genitalium using culture: differential susceptibilities to azithromycin

(P245) Treating Mycoplasma genitalium Infection with a Sitafloxacin Regimen in the Context of Increased Resistance

(P247) Mycoplasma genitalium Antimicrobial Resistance Surveillance (MARS): protocol for a national surveillance programme in England

(P248) Mycoplasma Genitalia Testing During Admission In An Urban Juvenile Detention Center 2022

(P250) Antimicrobial resistance in Mycoplasma genitalium: preliminary results of the first Brazilian study

(P251) The real magnitude of antimicrobial resistance of Mycoplasma genitalium in Belgium.

(P252) Prevalence of urogenital Mycoplasma genitalium and associated factors in a sample of US Army service members and their dependents

(P255) Detection of gyrA mutations in Mycoplasma genitalium from individuals who failed treatment

(P246-LB) Effectiveness of Lefamulin for Mycoplasma genitalium (MG) Treatment Failures in Australia and the United States (US)

(P256) Geographic and cultural factors associated with racial/ethnic assortative mixing, 2015-2019

(P257) Sexual Network Characteristics and Partnership Types among Men Who Have Sex With Men Diagnosed With Syphilis, Gonorrhea, and/or Chlamydia in Lima, Peru

(P258) Network Testing in Southside of Chicago: Identifying Challenges in a Post-COVID Era

(P259) Characterising the spatiotemporal burden of symptomatic sexually transmitted infections in Malawi

(P260) Survey : Characteristics of an Ideal STI Anonymous Partner Notification app for French MSM on PrEP - KYSS – Know Your Status

(P261) Acceptability of and experiences with delivery of expedited partner therapy for STIs among adolescent girls and young women using oral PrEP in Johannesburg, South Africa

(P262) Acceptability of and user requirements for online partner notification and management for people with STIs in the UK: qualitative findings from the SEQUENCE Digital research programme

(P263) Partner treatment preferences and outcomes at three timepoints among pregnant women treated for Chlamydia trachomatis and Neisseria gonorrhoeae in Botswana

(P264) Factors associated with ability to recontact prior sex partners for treatment among young Black men with chlamydia in New Orleans, LA

(P265) Trends in Early Syphilis Partner Notification Services in Heterosexual Men, Pregnant Women, and Non-Pregnant Women from 2014-2021, North Carolina, US

(P269) Prevalence and predictors of Chlamydia trachomatis and Neisseria gonorrhoeae among HIV-negative pregnant women in Kenya

(P270) Detection of Herpes Simplex Virus DNA from Vaginal Swabs at Time of Delivery Using Three PCR Detection Platforms

(P271) Perinatal depression amongst pregnant and recently postpartum women participating in a sexually transmitted infection screening study in Gaborone, Botswana

(P273) A Scoping Review of Linezolid Safety in Pregnancy

(P274) Intimate partner violence reported by pregnant and recently postpartum women participating in a sexually transmitted infection screening study in Gaborone, Botswana

(P275) National trends of Mother-to-child transmission of HIV, hepatitis B, and syphilis in Brazil from 2011 to 2021

(P277) Prevalence and incidence of Chlamydia trachomatis and Neisseria gonorrhoeae among pregnant women in a high HIV prevalence setting in South Africa

(P278) Could Vaginal pH Testing Reduce Excess Antibiotic Use Among Pregnant Women with Vaginal Discharge Syndrome?

(P279) Effect of antenatal Chlamydia trachomatis and Neisseria gonorrhoeae screening on post-delivery prevalence and vertical transmission in Gaborone, Botswana

(P280) Prenatal syphilis and HIV screenings in the early third trimester have increased following new legislation in Michigan

(P283) Using implementation science to develop an adaptable clinical systems implementation package to embed routine syphilis screening in later pregnancy into clinical practice.

(P284) HIV and syphilis mother-to-Child Transmission certification process in 43 municipalities above 100,000 inhabitants in Brazil

(P285) Elimination of Mother-to-Child Transmission of HIV and Syphilis: The Brazilian experience for certification

(P267-LB) Associations of the vaginal microbiome with HIV status and STI diagnosis during pregnancy and the postpartum period in South African women

(P287) Willingness to Take Pre-Exposure Prophylaxis (PrEP) among High-Risk Young Men aged 10-24 years in Masese Fishing Community, Jinja District, Uganda

(P288) ENROLLMENT AND DISCONTINUATION OF PREP IN CHINA: RESULTS FROM A DEMONSTRATION TRIAL

(P289) Knowledge and Barriers to HIV Pre-Exposure prophylaxis in Southern California

(P290) Improving PrEP adherence among MSM in China: Co-creation of intervention materials with the community

(P291) Knowledge Gaps Regarding PrEP and STI Prevention Among Sex Workers in India

(P295) An Oral Pre-Exposure Prophylaxis Demonstration Project Among Men who have sex with men in Benin, West Africa

(P296) Current HIV Preexposure Prophylaxis practices in Florida: focus groups with the Clinicians

(P297) Barriers and Facilitators of HIV Pre-Exposure Prophylaxis Services in an Obstetrics-Gynecology Clinic in Alabama: A Qualitative Analysis

(P298) Loss to follow-up in the Dutch PrEP pilot program

(P299) Association of provider type with sexually transmitted infection (STI) occurrence and pre-exposure prophylaxis (PrEP) non-adherence among key adolescent populations in Brazil

(P300) Evaluating Pre-Exposure Prophylaxis Uptake, Adherence and Persistence Outcomes among Adolescents and Young Adults Aged 10-24: A Global Systematic Review, Meta-analysis, and Meta-synthesis.

(P302) Improved PrEP delivery among all populations during the COVID 19 pandemic in a traditional sexual health clinic

(P303) Newly diagnosed HIV and use of HIV-PrEP among migrant MSM attending STI clinics in the Netherlands, a retrospective cohort study

(P304) Examining Provider Attitudes and Barriers Towards Prescribing PrEP within Primary Care Settings in the Southern United States

(P294-LB) Acceptability of and willingness to use HIV pre-exposure prophylaxis in community Pharmacy users in Uganda

(P306-LB) HIV PrEP-ARER: HIV Pre-Exposure Prophylaxis Access Retention and Education Research Among General Practitioners in Paris, France

(P309) Drivers of wanting to use antibiotic pre-exposure prophylaxis for STI prevention among gbMSM in British Columbia, Canada

(P311) Post-exposure prophylaxis with doxycycline (doxyPEP) to prevent STIs among men who have sex with men in the United States is highly acceptable to health providers caring for MSM

(P310-LB) Doxycycline PEP can induce doxycycline resistance in Klebsiella pneumoniae -an in vivo study in Galleria mellonella

(P313) Mapping Online Community Spaces and Experiences of Online HIV/STI Services: A Digital Focus Group Study among GBMSM in Guangdong, China with Implications for HIV/STIs Prevention Services

(P314) Process evaluation: Understanding the implementation and adaptation of a peer-led intervention to deliver biosocial Sexual Reproductive Health and HIV prevention for adolescents in rural South Africa.

(P315) Systematic review of the applications for individual clinical management and care of whole genome sequencing for human pathogens

(P316-LB) Using a Secure Text-based Patient Messaging Platform to Recruit Community Clinic Patients for Participation in a Public Health Led Study on Mpox Vaccine Effectiveness.

(P317) Gaps and opportunities in STIs management among clinicians in resource-limited settings

(P320) PioneerRx eCare: Empowering Rural Pharmacists for Expanded STI Service Delivery

(P321) Sexually transmitted infection point-of-care testing in resource-limited settings: a formative implementation evaluation

(P319) VIVALSTI: In-vitro validation to assess the effect of sample transport of home-based self-collected samples on the detection of blood borne sexually transmitted infections.

(P322) Five year experience of Sexual Health London (SHL): a large, regional, online postal sexually transmitted infection (STI) testing service.

(P326) Brazilian Ministry of Health quality assurance tools for rapid treponemal tests in public healthcare system

(P323) Service user perspectives on online postal self-sampling (OPSS) for sexually transmitted infection (STI) testing: a qualitative study

(P324) Web-based STI/HIV testing services available for access in Australia – an assessment of their quality and cost

(P327) Rationale and design of the STBBI-CARE [community/access/respect/equity] Pilot Study: a web-based platform to enhance community access to comprehensive, at-home STBBI testing for at-risk populations

(P331) Dual tests HIV/Syphilis usability and acceptance in Brazil: strategy for expanding prenatal syphilis screening

(P328) How Well Are Online STI Treatment Providers Doing? Measuring the Impact of the BASHH Position Statement for Inappropriate Use of Multiplex Testing Platforms and Suboptimal Antibiotic Treatment.

(P329) User experience study of a novel blood collection device for remote HIV/STI testing – the Collect2Know device

(P330) Self-collection of capillary blood using a new device for HIV and syphilis testing among men who have sex with men that use PrEP in the Netherlands

(P332) Opinion of Public Health Laboratorians About Self-Collection and Point-of- Care Testing For Sexually Transmitted Infections

(P334) Online testing over samples population groups with the greatest STI risk

(P335) Reasons individuals initially engaging with an online sexually-transmitted and blood-borne infection testing service do not test: implications for service design and implementation

(P336) Self-Collected Specimens for STI Screening and Related Research among People Who Use Illicit Opioids in New York City

(P337) Self-sampling and self-testing for HIV at a commercial and community test service in the Netherlands: usability and user preferences

(P338) Automated reminders improve the return rate of STI self-collection test kits among users of the I Want The Kit online service

(P339) Assessing potential missed opportunities for recommended clinical care among users of GetCheckedOnline, British Columbia’s online testing service for sexually-transmitted and blood-borne infections

(P341) Digital vending machines for delivery of HIV self-testing and STI self-sampling kits in Brighton, UK: a mixed methods study

(P342) Understanding Reach, Efficacy, Adoption, Implementation, and Maintenance of home-based sexual health care including HIV testing outside a clinic: a Realist Review

(P343) Mapping the South African e-Health service provider landscape for self-testing or self-sampling of sexually transmitted infection screening services

(P344) Internet-based self-sampling for Chlamydia trachomatis testing: the most important case detector in Sweden?

(P345) How a Digitally Powered, STI (Sexually Transmitted Infection) Self-Collection Testing Program Expanded Access to Healthcare in Alabama

(P346) The implementation of online postal self-sampling (OPSS) for sexually transmitted infections (STI) testing in England: staff and stakeholder perspectives

(P347) Are Online Postal Self Sampling Services contributing to a widening of sexual health inequalities through a digital divide in East Sussex, England?

(P348) Delivering a world class online postal self-sampling service at scale for HIV and STIs

(P349) TakeMeHome: A novel project to increase access to HIV and STI testing using self-collected samples

(P333-LB) Home Testing Goes Extra-Genital: The Potential for Expanding NAAT STI Home Testing Programs to Include Self-Collected Throat and Rectal Swab Specimens

(P350) Clinic-Based Hands-On Time and Time to Result for Point of Care Chlamydia and Gonorrhea Test Compared to Laboratory Based Test

(P351) Reach and Use of an Internet-based Sexually-transmitted and Blood-borne Infection Testing Survey During Scale-up to Urban, Suburban and Rural Communities in British Columbia, Canada

(P352) How Pay-it-Forward Works: A Qualitative thematic analysis of the of the participant experience in an approach to facilitate STI testing in gay, bisexual and other men who have sex with men

(P353) Health equity effects of digital interventions for sexually transmitted and blood-borne infection testing: A scoping review

(P354) Infections with extensively antibiotic resistant Shigella sonnei and identification based on whole genome sequencing in Germany

(P355) Co- prevalent sexually transmitted infections among individuals presenting with genital ulcer disease in Zimbabwe

(P356) Etiologies of Genital Ulcer Disease among Sexually Transmitted Infections Clinic Patients in Lilongwe, Malawi

(P357) Proportion of Asymptomatic Sexually Transmitted Infections in Women in Low- and Middle-Income Countries: a Systematic Review and Meta-Analysis

(P358) Sexually transmitted infection burden among cohabitating heterosexual couples in southern Uganda: a population-based study

(P359) County-level persistent poverty as a predictor of gonorrhea and chlamydia incidence

(P360) Estimating quality-adjusted life years (QALYs) lost due to five sexually transmitted diseases in the United States

(P361) High prevalence of genital and isolated extragenital sexually transmitted infections in vulnerable female populations in Ecuador

(P362) Co-infection Rate of Sexually Transmitted Infections from a United States Cohort

(P365) Etiological molecular identification of sexually transmitted infections that cause urethral discharge and genital ulcer in Brazilian men: a nationwide study.

(P366) Pilot implementation of the National Service for C. trachomatis, N. gonorrhoeae, T. vaginalis, and M. genitalium molecular tests: Preliminary prevalence and Risk Factors Among Pregnant Women in Brazil

(P367) Recurrent Chlamydia and Gonorrhea Infections in US Army Soldiers: 2015-2019

(P368) Risk factors for curable sexually transmitted infections among youth: findings from a population survey in Zimbabwe

(P369) STI/HIV burden and sexual healthcare-seeking behaviour among first- and second-generation migrant and Western-born male sex workers who have sex with men in the Netherlands between 2016-2021

(P370) STI/HIV burden and sexual healthcare-seeking behaviour among first- and second-generation migrant and Western-born female sex workers in the Netherlands: a retrospective cohort study

(P371) Social determinants of health and sexually transmitted infection disparities in California, 2013 - 2021

(P375) Prevalence of, and factors associated with, HIV, syphilis, chlamydia and gonorrhoea in individuals tested in walk-in clinics in North-Rhine Westphalia, Germany, in 2021

(P376) Prevalence of five curable sexually transmitted infections and associated risk factors among young gay, bisexual and other men who have sex with men in urban Kenya: a respondent-driven sampling survey

(P378) Activist and scientific society engagement in advances in HTLV public policies in Brazil

(P379) Treponema pallidum subsp. pallidum with an Artificially Impaired TprK Antigenic Variation System is Attenuated in the Rabbit Model of Syphilis

(P382) Treponema pallidum-specific memory T cells persist in skin after secondary syphilis

(P384) Development of a Direct Diagnostic Test for Syphilis

(P385) Innovative refrigerated housing model for isolation of Treponema pallidum strains by rabbit infectivity testing in tropical climates.

(P392) Escherichia coli OmpA β-barrel is a promising scaffold for the generation of ECL-specific antibodies against orthologous 8-stranded β-barrel OMPs from Treponema pallidum, the syphilis spirochete

(P387) Pyrococcus furiosus thioredoxin (PfTrx) scaffolds displaying extracellular loops of Treponema pallidum outer membrane proteins: “learning from nature” in the search for syphilis vaccine candidates

(P388) Development of an opsonic monoclonal antibody targeting extracellular loop 4 of Treponema pallidum BamA (TP0326)

(P390) Performance evaluation of syphilis testing algorithms in a high prevalence population of men and transgender women who have sex with men

(P391) Genomic analysis of global Treponema pallidum subs. pallidum strains shows significant allelic differences between Nichols and SS14 lineages

(P393) Young Australians know less about syphilis than other sexually transmissible infections: findings from an online survey

(P396) Evaluation of the Chembio DPP® HIV-Syphilis Point-of-care Assay for Syphilis Screening in Clinical Settings

(P397) Rapid Plasma Reagin Titer Changes Between Dates of Diagnosis and Treatment

(P398) Preliminary Results from a Clinical Trial Comparing the Efficacy of Cefixime Versus Penicillin G for the Treatment of Early Syphilis

(P399) The full clinical spectrum of symptomatic neurosyphilis

(P400) Multiplex PCR testing of anogenital lesions for Treponema pallidum and herpes simplex virus in primary care improves the detection of primary syphilis.

(P402) Nomogram to Predict Neurosyphilis in Patients with Syphilis

(P403) Proportion of Treponema pallidum PCR-positive primary syphilis infections which are seronegative: a systematic review.

(P404) Additional value of IgM serology to standard serological testing and Treponema pallidum PCR for diagnosing early syphilis

(P405) Peptidylarginine deiminase 2 has potential as a biomarker of neurosyphilis

(P406) The Utility of Biomarkers in the Clinical Management of Syphilis: A Systematic Review

(P407) An evaluation of syphilis partner services among MSM with early syphilis in King County, WA

(P409) Differences in syphilis positivity according to geographic areas of south Brazil

(P410) Barriers to syphilis treatment among transwomen in Brazil

(P411) Syphilis prevalence and correlates in rural, southwestern Uganda

(P412) Factors Associated with Self-Reported Syphilis Testing Among Young Black Men Having Sex with Women in New Orleans, LA

(P414) Compliance with syphilis treatment and follow-up in a retrospective cohort in south Brazil

(P415) Clinical, microbiologic, and molecular epidemiology of early syphilis in Southwestern Colombia – implications for vaccine development

(P416) Trends in Primary and Secondary Syphilis among Females in Chicago, 2017-2021

(P418) Characterising a syndemic among women impacted by syphilis and the toxic drug supply in Fraser Health Authority, Canada using latent class analysis

(P419) HIV and syphilis testing for heterosexuals aged above 25 years in the Netherlands: possibilities for targeted testing at Sexual Health Centers

(P420) Evaluation of reported primary and secondary syphilis cases among areas prioritized by the Ending the HIV Epidemic initiative — United States, 2020

(P421) Repeat Primary and Secondary Syphilis Infections in 10 U.S. Jurisdictions, STD Surveillance Network, 2020 – 2021

(P422) Living Off the Grid: Automating Syphilis Electronic Laboratory Processing to Align with Case Definition in Florida, USA

(P423) Syphilis prevalence among people living with HIV in Sub-Saharan Africa: A systematic review and meta-analysis

(P424) Population-based trends in syphilis testing from Manitoba, Canada: 2015-2022.

(P427) Syphilis Rapid Tests Used During a Localized Syphilis Outbreak in a Rural Public Health Setting

(P428) Increased syphilis testing and detection of late latent syphilis among women after switching from an opt-in to opt-out testing strategy in an urban Australian sexual health clinic

(P408-LB) Four polyvalent screening assays in comparison to the treponema pallidum particle agglutination assay

(P426-LB) Knowledge towards syphilis among urban adults in Rio Grande do Sul, Brazil: preliminary results from a population-based cross-sectional household survey

(P429) Congenital Syphilis Elimination: Even harder during a pandemic

(P430) How did Congenital Syphilis case characteristics change between 2018 and 2021 in Louisiana, a high morbidity state in the US?

(P432) Social Vulnerabilities Associated with Congenital Syphilis

(P433) Missed Opportunities for Congenital Syphilis Prevention in a Missouri Hospital System

(P435) Evaluation of Universal Syphilis Screening at Delivery in British Columbia, Canada

(P436) Syphilitic Stillbirths and Syphilitic Neonatal Deaths in Florida, USA, 2012-2021

(P437) Implementation of policy into practice: Prenatal syphilis screening policies in Texas

(P438) Scale up of syphilis screening and treatment among pregnant women in Zimbabwe, 2021-2022

(P439) Bodies of desire: use of hormones nonprescribed among transgender women in five Brazilian capitals, 2019 - 2021

(P440) Trauma and Its Impacts on Sexual Healthcare Experiences Among Transgender Women in the Southeastern United States: A Qualitative Study

(P441) If You Build It, They Will Come: Access, not Distance, Predicts STI testing among Genderqueer Adults

(P442) Unique challenges in recruiting transgender men in the Southeastern United States for genital microbiome research

(P443-LB) Heterogeneity in HIV and STI outcomes among transgender and non-binary patients attending New York City Sexual Health Clinics, 2018-2022

(P444) Determining the In vitro correlate of Susceptibility to Secnidazole in Trichomonas vaginalis

(P445) Strain variation of Trichomonas vaginalis amongst street and brothel-based female sex workers in Ecuador

(P447) Associations between intravaginal and menstrual hygiene practices and Trichomonas vaginalis among women living with HIV in Zambia

(P448) Prevalence and incidence of Trichomonas vaginalis in pregnant women in South Africa

(P449-LB) Trichomoniasis testing amongst women in Maryland who self-Collect specimens through a mail-in STI testing program (IWantTheKit)

(P450) Vaccines to Prevent Sexually Transmitted Infections and Cancer: Opinions among a National Sample of Parents in the United States

(P451) Promoting Uptake of a Future HIV Vaccine: Opinions among Parents of Adolescents in Alabama

(P452) Chlamydia and gonorrhea vaccines: Acceptability and barriers among sexual and gender minority young adults

(P453) Barriers and Facilitators of Syphilis Vaccine Trial Participation: A Qualitative Analysis to Inform Trial Design and Community Engagement in the United States

(P454) Towards point-of-care test development for Bacterial Vaginosis (BV), a polymicrobial infection

(P455) Vaginal Metronidazole Activity and Clinical Outcomes for Bacterial Vaginosis

(P456) Vaginal anaerobes are associated with cervicitis

(P459) Anorectal and vulvovaginal microbiota in Ecuadorian female sex workers with anorectal and urogenital STIs: evidence for cross-anatomical impact

(P460) Metagenomic Community State Types and Recurrent Bacterial Vaginosis

(P461) Characterisation of vaginal Prevotella strains from a cohort of South African individuals with and without bacterial vaginosis

(P462) Extensive phase variation in Gardnerella: what could this mean for BV treatment and pathogenesis?

(P463) Do women with BV symptoms who are microscopy negative respond to treatment with metronidazole?

(P464) Molecular-based Testing for Vaginitis Using Samples Previously Collected and Tested for Sexually Transmitted Infections

(P465) Bacterial vaginosis and Mycoplasma genitalium among women with cervicitis over a decade

(P466) Prediction of Bacterial Vaginosis Recurrence by Clinical and Molecular Testing

(P467) Performance of the BD Vaginal Panel for BD COR™ System as compared to the BD Vaginal Panel for BD MAX™ System

(P468) Sexually Transmitted Infections and Bacterial Vaginosis among Women of Child-Bearing Age in Antananarivo, Madagascar: Prevalence and Risk Factors

(P469) Assessment of the performance of a multiplex real-time PCR, AmpliSens Florocenosis/Bacterial Vaginosis-FRT, versus Nugent's criteria in the diagnosis of BV in women in Mozambique

(P470) Amsel-BV before and after a single exposure to lubricant during transvaginal ultrasound and incidence of Amsel-BV over 10 weeks compared to a lubricant-unexposed cohort

(P471) Comparison of computer-assisted self-interview (CASI) versus clinician-interview (CI) for self-reported vulvovaginal symptoms

(P472) Association between diabetes and the vaginal microbiota

(P473) Social and Behavioral Predictors of Recurrent Bacterial Vaginosis among Women Attending Sexual Health Clinics in New York City from 2014-2018

(P475) Trends in and factors associated with having bacterial vaginosis and vulvovaginal candidiasis among women attending the Melbourne Sexual Health Centre, 2012-2021

(P476) Asking and Telling: addressing sexual violence in sexual health services – a national survey of practice.

(P480) PILOT IMPLANTATION OF A MOLECULAR BIOLOGY NETWORK TO DETECT CHLAMYDIA TRACHOMATIS AND NEISSERIA GONORRHOEAE IN THE BRAZILIAN NATIONAL HEALTHCARE SYSTEM

(P483) International Students' Gaps in SRH Care

(P477-LB) Knowledge, Attitude and Practices on Sexual History Taking Among Dermatology Residents in the Philippines

(P479-LB) Standardized Patient Simulations Improve Sexual Health-related Interpersonal Communication and Medical History Taking for Students: Results from the Tanzanian Health Professionals Trial

(P485) HIV Prevention Education Dissemination through Youth Networks: The Youth Leaders in HIV Program

(P486) Views of adolescent, caregiver and school nurses on school-based antiretroviral adherence counseling in boarding schools in Kenya-a participatory formative evaluation

(P487) Past sex education and having a usual doctor makes it easier for young Australians to discuss sexual health with a doctor: Findings from an online survey

(P488) “Mum was disappointed but everyone else was supportive” – experiences of disclosing a sexually transmissible infection diagnosis

(P489) Preferences for an online STI testing service; reaching and garnering trust with young people in underserved populations- a survey of young Australians

(P491) Prevalence and incidence of sexually transmitted infections among adolescents and young adults in rural KwaZulu-Natal, South Africa

(P492) Racial and Ethnic Differences in Chlamydia and Gonorrhea Testing Locations among Medicaid-Insured Youth

(P494) Self-reported uptake of STI testing services among adolescents and young people aged 15-24 in Lusaka, Zambia: findings from the Yathu Yathu trial

(P496) A preliminary examination of longer-term non-infectious conditions associated with chlamydia and gonorrhea infections in adolescence and young adulthood

(P497) Moving towards online-based STI testing and treatment services for young people: who will use it and what do they want?

(P498) The Relationship Between State-Level Sex Education Mandates and Gonorrhea and Chlamydia Diagnosis Rates in Children Aged 15 to 19

(P499) Capturing Clouds - Listening to Young Survivors in the design of their journey through Paediatric Sexual Abuse Referral Centre Services.