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International travel is a risk factor for acquiring sexually transmitted infections (STIs) owing to factors such as increased sexual opportunities, a sense of freedom, and the allure of the sex industry. We investigated the incidence of travel-associated STIs in Japan using data from the Japan Registry for Infectious Diseases from Abroad (J-RIDA) reported by 17 participating medical institutions between October 2017 and December 2022. Data were collected on the patients' age, sex, nationality, chief complaint, whether they had visited a travel clinic before travel, travel history, and final diagnosis. Of 4545 cases of travel-associated illness reported, 52 (1.1%) were STIs. Most patients with STIs were male (81%) with a median age of 31 years. HIV (17%), genital herpes (13%), syphilis (13%), and gonorrhea (12%) were the most frequently reported STIs. Only one patient had visited a travel clinic before travel. Promoting awareness and vaccination is crucial for preventing travel-associated STIs.

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Background: Men who have sex with men (MSM) are at a high risk for HIV infection. While pre-exposure prophylaxis (PrEP) is an effective oral preventive strategy, its success is largely dependent on consistent medication adherence. Objective: The aim of this study was to develop the machine learning web application and evaluate the performance in predicting PrEP adherence. Methods: The PrEP prospective cohort study of the MSM population conducted in Western China from 2019 to 2023, and we collected adherence data and personal characteristics data from 747 MSM. Predictor variables were screened and the performance of several machine learning methods in predicting nonadherent behaviors were compared. Results: A total of 11 candidate variables were screened that predicted nonadherent behaviors. We developed and evaluated five machine learning models that performed well in predicting adherence. Attitudes of male sexual partners, self-efficacy, HIV testing, number of male sexual partners, and risk perception were the most important predictors of adherence. The optimal prediction model was displayed in a shiny web application for online calculation of the probability of occurrence of nonadherent behaviors among MSM. Conclusions: Machine learning performed well in predicting nonadherent behaviors among MSM. An interactive and intuitive web application can help identify individuals who may have nonadherent behaviors, resulting in improved medication adherence and increased prevention efficacy.

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Fitz-Hugh-Curtis (FHCS) is characterized by an inflammation of the hepatic capsule concomitant or following pelvic infection due to Chlamydia trachomatis or Neisseria gonorrhea. It is a rare condition occurring most often in a woman of childbearing age and very rare in male patients. Splenic involvement is also a rare form of abdominal tuberculosis. The association of these two conditions is very uncommon. We report the exceptional case of a 58- year-old HIV-positive male patient, with whom abdominal ultrasound helped diagnose FHCS associated with abdominal tuberculosis invovlving the spleen.

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Background: About half of people infected with Human Immunodeficiency Virus (HIV) often present late for care, resulting in higher healthcare costs, undesired treatment outcomes, and ongoing HIV transmission. This study aimed to assess the prevalence and determinants of late HIV diagnosis and advanced HIV disease (AHD) in Tanzania. Methods: Data were obtained from the 2016-17 Tanzania HIV impact survey. We included 677 newly diagnosed people living with HIV. Late HIV diagnosis and AHD were defined as having a CD4 cell count below 350 cells/µL or 200 cells/µL at diagnosis, respectively. Bivariate and multivariable logistic regression models were fitted to identify the determinants of late HIV diagnosis or AHD. Results: The mean age of the participants was 37.8 years (SD, 12.4). About two-thirds were women (62.6%). The prevalence of late HIV diagnosis was 42.4%, whereas the prevalence of AHD was 17.7%. Factors associated with late HIV diagnosis included age 31-40 years (adjusted odds ratio [aOR] = 1.72, 95% confidence interval [CI]: 1.14-2.60), age ≥41 years (aOR = 1.79, 95% CI: 1.16-2.76), male sex (aOR = 1.88, 95% CI: 1.29-2.73), and active syphilis infection (aOR=2.63, 95% CI: 1.20-5.76). Factors associated with AHD were age 31-40 years (aOR = 2.12, 95% CI: 1.18-3.81), age ≥41 years (aOR = 2.42, 95% CI: 1.32-4.41), male sex (aOR = 1.77, 95% CI: 1.09-2.87), formal education (aOR = 0.49, 95% CI: 0.30-0.81) and active syphilis infection (aOR = 2.49, 95% CI: 1.07-5.77). Conclusion: Late HIV diagnosis and AHD are prevalent among newly diagnosed people living with HIV in Tanzania. Specific subgroups are more likely to present late for HIV care, including middle-aged and older adults, men, illiterate individuals, and those with active syphilis and HIV co-infection. Therefore, we recommend expanding HIV testing services and implementing targeted interventions to improve early access and enrollment in HIV care.

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Progressive multifocal leukoencephalopathy (PML) is a rare demyelinating disease of the central nervous system (CNS) due to John Cunningham (JC) virus reactivation most often in immunocompromised patients. The brainstem and the anterior corpus callosum are uncommon locations for white matter lesions. We present a case of PML in a 40-year-old female presenting to the emergency department for a tonic seizure with transient postictal confusion. The inpatient workup revealed low cluster of differentiation cell counts (CD3 and CD4), transaminitis, positive drug screen, and abnormal electroencephalogram (EEG). The computed tomogram (CT) of the head and magnetic resonance image (MRI or MR) of the brain showed evidence of subcortical and periventricular white matter lesions in the right hemisphere extending into the brainstem and the left frontal lobe. The hospital course consisted of supportive measures, seizure treatment along with prophylaxis, and human immunodeficiency virus (HIV) management along with prophylactic antibiotics. The patient was discharged with appropriate medications and outpatient referrals. Overall, this case describes some key points. It highlights particular imaging characteristics of PML in the setting of inadequately treated HIV. For example, white matter lesions cross the anterior corpus callosum rather than the splenium, as in the "barbell" sign. In addition, the lesions extend inferiorly along the ipsilateral corticospinal tract into the midbrain and pons. This could be one of the first cases to capture both of these features given the rarity of their concomitant occurrence.

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Primary central nervous system lymphoma is a rare form of central nervous system malignancy. It predominantly affects immunocompromised individuals and the elderly population. Diffuse large B-cell lymphoma is the most common type. This case report presents a 35-year-old female patient presented with progressive difficulty maintaining balance, headaches, seizures, and blurry vision for 2 months. Physical examination was unremarkable except for sluggish bilateral pupillary reaction and lower extremity weakness. MRI revealed multiple bilateral intraaxial masses. Biopsy and immunohistochemistry confirmed diffuse large B-cell lymphoma, nongerminal center B-cell type. However, the diagnosis was delayed for 4 months. The delay in the diagnosis was caused by its atypical presentation, a surgical site infection, and limited resources, which led the patient to disregard the recommended treatment and leave the hospital against medical advice. Even in the absence of risk factors of primary central nervous system lymphoma, it should be considered as a differential in a young patient with neurologic symptoms and intraaxial mass. Minimally invasive biopsy techniques and readily available immunohistochemistry are essential for prompt diagnosis and guiding treatment.

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Different host proteins target different HIV proteins and antagonize their functions, depending on the stage of the HIV life cycle and the stage of infection. Concurrently, HIV proteins also target and antagonize various different host proteins to facilitate HIV replication within host cells. The preceding quite specific area of knowledge in HIV pathogenesis, however, remains insufficiently understood. We therefore propose, in this review article, to examine and discuss the HIV proteins that counteract those host restriction proteins which results directly in increased infectivity of HIV. We elaborate on HIV proteins that antagonize host cellular proteins to promote HIV replication, and thus HIV infection. We examine the functions and mechanisms via which Nef, Vif, Vpu, Env, Vpr, and Vpx counteract host proteins such as Ser5, PSGL-1, IFITMS, A3G, tetherin, GBP5, SAMHD1, STING, HUSH, REAF, and TET2 to increase HIV infectivity. Nef antagonizes three host proteins, viz., Ser5, PSGL1, and IFITIMs, while Vpx also antagonizes three host restriction factors, viz., SAMHD1, STING, and HUSH complex; therefore, these proteins may be potential candidates for therapeutic intervention in HIV infection. Tetherin is targeted by Vpu and Env, PSGL1 is targeted by Nef and Vpu, while Ser5 is targeted by Nef and Env proteins. Finally, conclusive remarks and future perspectives are also presented.

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Background: Many research laboratories have long-term repositories of cryopreserved peripheral blood mononuclear cells (PBMC), which are costly to maintain but are of uncertain utility for immunological studies after decades in storage. This study investigated preservation of cell surface phenotypes and in-vitro functional capacity of PBMC from viraemic HIV+ patients and healthy seronegative control subjects, after more than 20 years of cryopreservation. Methods: PBMC were assessed by 18-colour flow cytometry for major lymphocyte subsets within T, B, NK, and dendritic cells and monocytes. Markers of T-cell differentiation and activation were compared with original immunophenotyping performed in 1995/1996 on fresh blood at the time of collection. Functionality of PBMC was assessed by culture with influenza antigen or polyclonal T-cell activation, to measure upregulation of activation-induced CD25 and CD134 (OX40) on CD4 T cells and cytokine production at day 2, and proliferative CD25+ CD4 blasts at day 7. RNA was extracted from cultures containing proliferating CD4+ blast cells, and intracellular HIV RNA was measured using short amplicons for both the Double R and pol region pi code assays, whereas long 4-kbp amplicons were sequenced. Results: All major lymphocyte and T-cell subpopulations were conserved after long-term cryostorage, except for decreased proportions of activated CD38+HLA-DR+ CD4 and CD8 T cells in PBMC from HIV+ patients. Otherwise, differences in T-cell subpopulations between recent and long-term cryopreserved PBMC primarily reflected donor age-associated or HIV infection-associated effects on phenotypes. Proportions of naïve, memory, and effector subsets of T cells from thawed PBMC correlated with results from the original flow cytometric analysis of respective fresh blood samples. Antigen-specific and polyclonal T-cell responses were readily detected in cryopreserved PBMC from HIV+ patients and healthy control donors. Intracellular HIV RNA quantitation by pi code assay correlated with original plasma viral RNA load results. Full-length intracellular and supernatant-derived amplicons were generated from 5/12 donors, and sequences were ≥80% wild-type, consistent with replication competence. Conclusions: This unique study provides strong rationale and validity for using well-maintained biorepositories to support immunovirological research even decades after collection.

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Patients with Human Immunodeficiency Virus/Acquired Immunodeficiency Syndrome (HIV/AIDS) and a low CD4 count have decreased humoral and cellular immunity, predisposing them to opportunistic infections. Opportunistic infections are one of the main causes of morbidity and mortality in immunocompromised individuals due to impaired immune systems, particularly in persons living with HIV/AIDS. Common opportunistic infections in patients living with HIV include bacterial infections such as Mycobacterium tuberculosis and Mycobacterium avium complex (MAC); viral infections such as cytomegalovirus (CMV) and herpes simplex virus 1 (HSV-1); fungal infections such as Pneumocystis carinii pneumonia (PCP) and cryptococcal meningitis; and parasitic infections such as cryptosporidiosis and toxoplasmosis. Concurrent infection with cryptococcal and tubercular meningitis in patients with HIV is very rare. Here, we present the case of a 48-year-old male living with HIV who presented with complaints of breathlessness, fever, and weight loss and was evaluated and put on antitubercular medications for pulmonary tuberculosis. However, the presence of a continuous headache led us to investigate further. Upon brain imaging and cerebrospinal fluid evaluation, it was determined to be meningitis due to co-infection with Mycobacterium tuberculosis and Cryptococcus neoformans. The patient was treated with antitubercular therapy along with antifungal therapy. He is under regular follow-up without any further events.

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BACKGROUND: Data on the occurrence of cervical precancer and cancer among women living with HIV (WLHIV) in Latin American countries (LAC) are scarce and highly heterogeneous. METHODS: We conducted a systematic review summarizing data about the incidence/prevalence of invasive cervical cancer (CC) and high-grade precancerous lesions among WLHIV in LAC. Literature in PubMed and LILACS was searched. The primary outcome was invasive cancer incidence, and prevalence of high-grade lesions as key indicators for the WHO CC elimination strategy. Individual reports on invasive cancer incidence and prevalence of precancerous lesions were obtained, and a random effects meta-analysis was conducted for the latter. RESULTS: In total, 34,343 WLHIV from four studies reporting CC incidence in seven LAC were included, and 6079 WLHIV from 17 studies reporting prevalence of precancerous lesions in three LAC were included. CC incidence ranged between 136.0 and 398.4 per 100,000 WLHIV (with or without antiretroviral therapy). The weighted prevalence of high-grade lesions was 4.1% (95%CI: 3.8%-6.0%) with a double peak at ages 20-24 and 35-39 years. Differences in prevalence of high-grade lesions were also observed by screening approach: co-testing (11.9%), colposcopy (6.0%), cytology (4.2%), and HPV tests (3.2%). CONCLUSIONS: The high incidence of invasive cancer and prevalence of high-grade lesions underline challenges to reach the WHO's elimination goal of CC incidence below four per 100,000 among WLHIV. Moreover, the high prevalence of high-grade lesions at younger ages than in the general population is a call to accelerate the implementation of the new WHO screening recommendations in WLHIV.

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Intervention mapping (IM) is a planning approach that reflects the intricate decision-making process involved in the design of behavior interventions. The development and implementation of IM is complex in preventing HIV/AIDS transmission. Therefore, it is significant to conduct a perfect preliminary work to successfully implement HIV/AIDS prevention. The objectives of this review were to collect and evaluate the data of the first three steps using IM to prevent HIV/AIDS transmission, and summarize the key points in the preliminary steps of IM. A total of 18 studies were identified, and six studies completely described the tasks in the first three steps of IM. Three studies described the logic model of the problem (n = 3). Six studies reported the matrix of behavior changes (n = 6), including personal and environmental determinants. Among the selected determinants, most studies reported the personal level determinants (self-efficacy and skills, knowledge, attitudes, and norms). The most used practical applications in reducing HIV/AIDS risk behaviors were video roles (n = 8) and role-model stories (n = 5). The review may be helpful for healthcare professionals to carefully design and implement the key procedures of the first three steps of the IM programs for people with HIV/AIDS in preventing HIV/AIDS transmission.

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We sought to investigate the association between hazardous alcohol use and gaps in care for people living with HIV over a long-term follow-up period. Adults who had participated in our previously published Phase I study of hazardous alcohol use at HIV programs in Kenya and Uganda were eligible at their 42 to 48 month follow-up visit. Those who re-enrolled were followed for an additional ~ 12 months. Hazardous alcohol use behavior was measured using the Alcohol Use Disorders Identification Test (AUDIT) tool. Deidentified clinical data were used to assess gaps in care (defined as failure to return to clinic within 60 days after a missed visit). The proportion of patients experiencing a gap in care at a specific time point was based on a nonparametric moment-based estimator. A semiparametric Cox proportional hazard model was used to determine the association between hazardous alcohol use at enrollment in Phase I (AUDIT score ≥ 8) and gaps in care. Of the 731 study-eligible participants from Phase I, 5.5% had died, 10.1% were lost to follow-up, 39.5% transferred, 7.5% declined/not approached, and 37.3% were enrolled. Phase II participants were older, had less hazardous drinking and had a lower WHO clinical stage than those not re-enrolled. Hazardous drinking in the re-enrolled was associated with a Hazard Ratio (HR) of 1.88 [p-value = 0.016] for a gap in care. Thus, hazardous alcohol use at baseline was associated with an increased risk of experiencing a gap in care and presents an early target for intervention.

RESUMEN: Buscamos investigar la asociación entre el uso riesgoso de alcohol y retención en programas de VIH a largo plazo. Todo adulto que participó en nuestro estudio previamente publicado sobre el uso riesgoso de alcohol en programas de VIH en Kenia y Uganda era elegible a los 42 a 48 meses de seguimiento. Los adultos reinscritos en la fueron seguidos por ~ 12 meses adicionales. Usamos el "Alcohol Use Disorders Identification Test" (AUDIT) para medir uso de alcohol. Usamos datos clínicos anonimizados para evaluar interrupciones en cuidado (definido como falta de regresar a clínica 60 días después de faltar a una cita). Basamos la proporción de pacientes con una interrupción en cuidado clínico en un estimador momentáneo y no-paramétrico. Determinamos la asociación entre el uso riesgoso de alcohol al inicio de la primera fase (puntuación AUDIT ≥8) con retención en servicios clínicos usando un modelo de riesgo Cox semiparamétrico. De los 731 participantes elegibles, 5.5% habían muerto, 10.1% fueron perdidos a seguimiento clínico, 39.5% se transfirieron a otro programa, 7.5% declinaron participación o no fueron reclutados y 37.3% fueron reinscritos en la segunda fase. Los participantes reinscritos eran mayores, tenían menos uso riesgoso de alcohol y tenían VIH menos avanzado. El uso peligroso del alcohol se vio asociado con el riesgo de tener una interrupción en cuidado clínico [Proporción de Riesgo (Hazard Ratio, HR) PR=1.88, valor-p = 0.016]. Por lo tanto, el uso peligroso del alcohol incrementa el riesgo de perder seguimiento clínico y presenta una oportunidad para intervención.

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Patient-reported outcomes (PROs) facilitate communication between patients and providers, enhancing patient-centered care. We report PROs for virologically suppressed people living with HIV-1 who switched to dolutegravir/lamivudine (DTG/3TC) or continued their 3- or 4-drug current antiretroviral regimen (CAR) in the phase 3 SALSA study. Secondary endpoints included change from baseline in HIV Treatment Satisfaction Questionnaire (status version; HIVTSQs) and HIV Symptom Distress Module (HIV-SDM) at Weeks 4, 24, and 48. A post hoc analysis assessed change in HIVTSQs and HIV-SDM by age (≥ 50 and < 50 years). Higher HIVTSQs scores represent greater treatment satisfaction (range, 0-60); lower HIV-SDM scores indicate less symptom bother (range, 0-80). Participants in the DTG/3TC (n = 246) and CAR (n = 247) groups reported comparable baseline HIVTSQs total scores (mean [SD], 55.2 [6.5] and 55.8 [5.5], respectively). Beginning at Week 4, mean HIVTSQs scores in the DTG/3TC group further increased vs. CAR and were sustained through Week 48. Baseline mean (SD) HIV-SDM symptom bother scores were comparable between the DTG/3TC (9.0 [9.9]) and CAR (7.9 [9.3]) groups. Small improvements in HIV-SDM scores favoring DTG/3TC were observed at Weeks 4 and 24 and sustained through Week 48 (though not significant between groups). Participants aged ≥ 50 and < 50 years who switched to DTG/3TC reported higher satisfaction and less symptom distress vs. CAR; these results were generally comparable between age groups. Participants who switched to DTG/3TC reported rapid and sustained improvements in treatment satisfaction compared with those who continued CAR, reinforcing the benefits of DTG/3TC beyond virologic suppression (NCT04021290; registration date, 7/11/2019).

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INTRODUCTION: Women engaging in sex work (WESW) have 21 times the risk of HIV acquisition compared with the general population. However, accessing HIV pre-exposure prophylaxis (PrEP) remains challenging, and PrEP initiation and persistence are low due to stigma and related psychosocial factors. The WiSSPr (Women in Sex work, Stigma and PrEP) study aims to (1) estimate the effect of multiple stigmas on PrEP initiation and persistence and (2) qualitatively explore the enablers and barriers to PrEP use for WESW in Lusaka, Zambia. METHODS AND ANALYSIS: WiSSPr is a prospective observational cohort study grounded in community-based participatory research principles with a community advisory board (CAB) of key population (KP) civil society organi sations (KP-CSOs) and the Ministry of Health (MoH). We will administer a one-time psychosocial survey vetted by the CAB and follow 300 WESW in the electronic medical record for three months to measure PrEP initiation (#/% ever taking PrEP) and persistence (immediate discontinuation and a medication possession ratio). We will conduct in-depth interviews with a purposive sample of 18 women, including 12 WESW and 6 peer navigators who support routine HIV screening and PrEP delivery, in two community hubs serving KPs since October 2021. We seek to value KP communities as equal contributors to the knowledge production process by actively engaging KP-CSOs throughout the research process. Expected outcomes include quantitative measures of PrEP initiation and persistence among WESW, and qualitative insights into the enablers and barriers to PrEP use informed by participants' lived experiences. ETHICS AND DISSEMINATION: WiSSPr was approved by the Institutional Review Boards of the University of Zambia (#3650-2023) and University of North Carolina (#22-3147). Participants must give written informed consent. Findings will be disseminated to the CAB, who will determine how to relay them to the community and stakeholders.

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BACKGROUND: HIV self-testing (HIVST) offers an innovative and promising approach to increasing HIV testing among Black men in the United States, a population disproportionately affected by HIV. However, engaging Black men in traditional HIV prevention programs has been challenging due to stigma, medical mistrust, and limited access to preventive health services. This formative qualitative study aimed to explore the potential of utilizing barbershops as an example of a nontraditional healthcare venue to promote and distribute HIVST. METHODS: Four virtual focus group discussions (FGDs) consisting of 19 participants in North Carolina were conducted with Black men, including barbershop business owners, barbers, and their customers, to assess perceptions of HIVST and the acceptability of partnering with barbershop businesses to promote HIVST. FGDs were digitally recorded, transcribed, and analyzed using a deductive coding approach to thematic analysis. RESULTS: Participants reported that the trusting relationship between barbers and their customers, which may not exist between Black men and health care providers, is a facilitator of collaborating with barbershop businesses to reach Black men for HIVST distribution. Participants recommended providing education for barbers on the use of HIVST, as well as how to inform self-testers about linkage to care following HIVST to build the credibility of the barbers in delivering the intervention. Participants also raised the issue of the cost of HIVST to barbershop customers as a potential barrier to implementation, as well as the possibility that the implementation of such interventions could be seen as out of place in a barbershop business venue. Participants also expressed a strong belief that compensation to barbershops and their employees should accompany any intervention. CONCLUSION: These findings suggest that barbershop business venues may provide an appropriate venue for HIVST promotion and distribution, though factors like cost, training, and incentivization of implementers are necessary to consider in implementation planning. Furthermore, partnerships between public health actors and the business community must be built on equitable engagement to ensure the long-term viability of these critical initiatives.

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In the United States, women account for one-fourth of people living with HIV. Most women living with HIV are Black or Hispanic and acquired HIV from heterosexual contact. Many face significant barriers to appropriate medical care, with lower retention in care and viral suppression than men who acquire HIV from male-to-male sexual contact. Many factors contribute to these disparities, including high rates of alcohol abuse, substance use, intimate partner violence, depression, and socioeconomic marginalisation. HIV, substance use, and violence each contribute independently to the collective health burden on women. The co-occurrence of these factors, termed the SAVA (substance abuse, violence, and HIV/AIDS) syndemic, is particularly hard to address, as the conditions act synergistically to negatively influence health outcomes. In addition, mental health conditions frequently coexist and further contribute to adverse outcomes. Unfortunately, clinician knowledge of this syndemic is low, and patients living with HIV and other elements of SAVA, including depression, are not recognised and referred for appropriate services. In this paper we describe our pilot educational and quality improvement program and the subsequent educational program we developed to increase knowledge of SAVA with the goal of improving health outcomes for women living with HIV.

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BACKGROUND: The HIV Organ Policy Equity (HOPE) Act allows individuals living with HIV to accept organs from donors with HIV. This practice widens the pool of available organs, but also presents important virological questions, including the potential for HIV superinfection of the recipient, viral persistence in the kidney, and loss of virological control. METHODS: We addressed these questions by performing in-depth longitudinal viral sequence analyses on urine, blood, and urine-derived renal epithelial cells from twelve recipients of HIV+ kidney allografts. RESULTS: We amplified donor-derived HIV-1 env sequences in 5 out of 12 recipients post-transplant. These donor-derived env sequences were amplified from recipient urine, urine-derived renal epithelial cells, and plasma between 12 and 96-hours post-transplant and remained detectable up to 16-days post-transplant. Env sequences were also detected in kidney biopsies taken from the allografts before implantation in 6 out of the 12 transplant cases, indicating the presence of donor virus within the organ. One recipient had a viremic episode 3.5 years after transplantation as a result of ART interruption. Only recipient strain viral sequences were detected in blood, suggesting that the donor virus, if still present, was not reactivated during the temporary ART withdrawal. CONCLUSIONS: This study demonstrates that the HIV env sequences in a donor kidney can be amplified from biopsies taken from the allograft before implantation and can be detected transiently in blood and urine samples collected from the organ recipients post-transplantation.

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The Conference on Retroviruses and Opportunistic Infections (CROI) is usually the most significant HIV conference of the year in terms of basic and clinical scientific output. CROI 2024 in Denver, USA, felt very much back to 'business as usual' following COVID-19 disruptions that had impacted preceding years, but also felt more global and outward- facing. The British HIV Association supports a working group to attend CROI annually and deliver feedback in the UK. This article summarizes the highlights from that meeting.