Incidence Of HIV Infection Research Articles

Examining trends in the incidence of HIV infection among people with a history of drug use to inform an outbreak investigation and response: A retrospective cohort study.

In the context of an outbreak of HIV among people who inject drugs in Glasgow, Scotland, identified in 2015, our objectives were to: (1) develop epidemiological methods to estimate HIV incidence using data linkage, and (2) examine temporal changes in HIV incidence to inform public health responses. This was a retrospective cohort study involving data linkage of laboratory HIV testing data to identify individuals with a history of drug use. Person-years (PY) and Poisson regression were used to estimate incidence by time period (pre-outbreak: 2000-2010 and 2011-2013; early outbreak: 2014-2016; ongoing outbreak: 2017-2019). Among 13 484 individuals tested for HIV, 144 incident HIV infections were observed from 2000 to 2019. Incidence rates increased from pre-outbreak periods (1.00/1000 PY (95% confidence interval, CI: 0.60-1.65) in 2000-2010 and 1.70/1000 PY (95% CI: 1.14-2.54) in 2011-2013) to 3.02/1000 PY (95% CI: 2.36-3.86) early outbreak (2014-2016) and 2.35 (95% CI 1.74-3.18) during the ongoing outbreak period (2017-2019). Compared with the pre-outbreak period (2000-2010), the incidence rates were significantly elevated during both the early outbreak (2014-16) (adjusted incidence rate ratio (aIRR) = 2.87, 95% CI: 1.62-5.09, p < 0.001) and the ongoing outbreak periods (2017-19) (aIRR = 2.12, 95% CI: 1.16-3.90, p = 0.015). Public health responses helped to curb the rising incidence of HIV infection among people with a history of drug use in Glasgow, but further efforts are needed to reduce it to levels observed prior to the outbreak. Data linkage of routine diagnostic test data to assess and monitor incidence of HIV infection provided enhanced surveillance, which is important to inform outbreak investigations and guide national strategies on elimination of HIV transmission.

A Statistical Model for Inference of Recent and Incident HIV Infection Using Surveillance Data on Individuals Newly Diagnosed With HIV Infection in Scotland

Background: To inform global ambitions to end AIDS, evaluation of progress toward HIV incidence reduction requires robust methods to measure incidence. Although HIV diagnosis date in routine HIV/AIDS surveillance systems are often used as a surrogate marker for incidence, it can be misleading if acquisition of transmission occurred years before testing. Other information present in data such as antibody testing dates, avidity testing result, and CD4 counts can assist, but the degree of missing data is often prohibitive. Methods: We constructed a Bayesian statistical model to estimate the annual proportion of first ever HIV diagnoses in Scotland (period 2015–2019) that represent recent HIV infection (ie, occurring within the previous 3–4 months) and incident HIV infection (ie, infection within the previous 12 months), by synthesizing avidity testing results and surveillance data on the interval since last negative HIV test. Results: Over the 5-year analysis period, the model-estimated proportion of incident infection was 43.9% (95% CI: 40.9 to 47.0), and the proportion of recent HIV infection was 21.6% (95% CI: 19.1 to 24.1). Among the mode of HIV acquisition categories, the highest proportion of recent infection was estimated for people who inject drugs: 27.4% (95% CI: 20.4 to 34.4). Conclusions: The Bayesian approach is appropriate for the high prevalence of missing data that can occur in routine surveillance data sets. The proposed model will aid countries in improving their understanding of the number of people who have recently acquired their infection, which is needed to progress toward the goal of HIV transmission elimination.

Dynamic choice HIV prevention with cabotegravir long-acting injectable in rural Uganda and Kenya: a randomised trial extension

HIV infections are ongoing globally despite efficacious biomedical prevention options. We sought to determine whether an HIV prevention package providing choice of daily pills or long-acting injectable cabotegravir and opportunities to change prevention options could increase biomedical prevention coverage and reduce new HIV infections. This study was an extension of three randomised trials that used SEARCH dynamic choice HIV prevention to recruit adults (aged ≥15 years) at risk for HIV from antenatal, outpatient, and community settings in rural Uganda and Kenya. In this 48-week open-label extension, participants maintained their original (1:1) randomisation group; the option to choose cabotegravir long-acting injectable was added for intervention participants. Inclusion criteria for the extension were previous enrolment in a SEARCH dynamic choice HIV prevention trial, negative HIV rapid test, and residence in study region. The intervention provided person-centred choice of oral pre-exposure prophylaxis (PrEP) or post-exposure HIV prophylaxis (PEP) or cabotegravir long-acting injectable, with the option to switch according to participant preference. The control provided standard-of-care access to oral PrEP and PEP, but not cabotegravir long-acting injectable. Biomedical prevention coverage (proportion of follow-up covered by oral PrEP, PEP, or cabotegravir long-acting injectable; primary outcome) and HIV incidence (secondary outcome) were compared between groups using targeted minimum loss-based estimation. The trial (NCT05549726) is closed to recruitment. Of 1534 participants initially randomly assigned (from April 15, 2021 to Sept 29, 2022), 984 (487 in the intervention group and 497 in the standard-of-care group) reconsented to the extension (from Jan 2 to March 3, 2023). The mean proportion of follow-up covered by biomedical HIV prevention was 69·7% (95% CI 64·9-74·5) in the intervention group versus 13·3% (10·2-16·3) in the standard-of-care group, corresponding to an absolute difference of 56·4 percentage points (95% CI 50·8-62·1; p<0·0001). The intervention significantly improved coverage across prespecified subgroups (sex and age groups). During the study, 274 (56%) of 485 intervention participants used cabotegravir long-acting injectable, 255 (53%) used oral PrEP, and ten (2%) used PEP. Among cabotegravir long-acting injectable initiators, 118 (43%) of 274 were not previously using oral PrEP or PEP. There were seven incident HIV infections in 390 person-years of follow-up in the standard-of-care group and no infections in 400 person-years of follow-up in the intervention group (incidence rate difference per 100 person-years 1·8, 95% CI 0·4-3·2; p=0·014). Offering people the choice of HIV biomedical prevention options including cabotegravir long-acting injectable in a flexible model can increase prevention coverage and reduce incident HIV infections. HIV programmes should support dynamic choice HIV prevention programmes that include effective oral and injectable long-acting products. National Institutes of Health.

Respiratory Syncytial Virus among People Living with HIV: Is There a Case for Rolling Out Prophylaxis? A Viewpoint Based on a Systematic Review.

Respiratory Syncytial Virus (RSV) is responsible for a considerable burden of respiratory disease among children and older adults. Several prophylactic strategies have recently been introduced. We review the available evidence on the interplay between RSV infection and HIV, looking at the specific role of RSV prophylactic strategies in individuals affected by or exposed to HIV. We conducted a systematic review on the association between HIV infection and RSV incidence and severity. We searched in PubMed/MEDLINE for clinical epidemiological studies covering outcomes such as RSV-associated illness, severity, and mortality in individuals affected by or exposed to HIV. A total of 36 studies met the inclusion criteria and were included, the majority conducted in sub-Saharan Africa. There was no compelling evidence suggesting a higher incidence of RSV illness among HIV-infected people. A higher risk of severe disease was consistent among both HIV-positive and HIV-exposed but uninfected (HEU) children. Case fatality rates were also higher for these groups. Evidence on a differing risk among adults was scarce. HIV-positive pregnant women should be given priority for recently approved RSV vaccination, for protection of their newborns. HIV-infected and HEU infants should be considered risk groups for nirsevimab prophylaxis in their first year of life and possibly beyond.

Application of ‘CDC- Public Security Bureau-NGO’ Joint Prevention and Control Mechanism Allied AIDS prevention and control in Guigang, Guangxi

BackgroundHIV/AIDS has emerged as a nationwide epidemic and has taken the forefront position as the primary infectious killer of adults in China. The control and prevention of the disease have been hampered by a weak link in the form of heterosexual transmission. However, conventional intervention measures have demonstrated suboptimal efficacy in reducing the incidence of new HIV infections. In light of the current epidemiological characteristics, we have developed and executed an innovative intervention model known as the Joint Prevention and Control Mechanism of the ‘CDC-Public Security Bureau-NGO’. The purpose of this research is to assess the impact of this model on the AIDS awareness, HIV infection rates, sexual behavior, and associated factors among female sex workers and elderly clients. Through the provision of robust evidence of the efficacy of this innovative model, we seek to advocate for its implementation in future interventions.MethodsThe research design of this study incorporates both a serial cross-sectional study and time-series analysis from 2014 to 2021, including a 4-year traditional intervention (2014–2017) and the 4-year ‘CDC-Public Security Bureau-NGO’ innovative intervention (2018–2021), was conducted to evaluate the effects of the new intervention. The GM(1, 1) model was performed to predict the proportion of HIV infection without implementing the innovative intervention in 2018–2021; P and C values were used to evaluate the performance of the model. Mann-Kendall test and descriptive methods were used to analyzed the trend of traditional and innovative interventions models on HIV positive detection rate in FSWs and elderly clients.ResultsThe condom usage rates during the last commercial sexual encounter for FSWs and elderly clients improved from 74.9% and 9.1%, respectively, to 96.9% and 28.1%. (P < 0.05), newly reported cases of HIV have decreased by 15.56% yearly and the HIV positive detection rate among middle-aged and elderly people has dropped by 14.47%. The innovative intervention model has significantly reduced the HIV infection rates.ConclusionsThe ‘CDC-Public Security Bureau-NGO’ innovative intervention has achieved beneficial effects on HIV/AIDS prevention and control and provides a good reference for Guangxi, China.

Integration of HIV pre-exposure prophylaxis (PrEP) services for pregnant and breastfeeding women in eight primary care clinics: results of an implementation science study

BackgroundAlthough HIV vertical transmission has declined significantly in sub-Saharan Africa, incident HIV infection in pregnant and postpartum women is estimated to account for over one-third of HIV vertical transmission. Oral pre-exposure prophylaxis (PrEP) for pregnant and breastfeeding women (PBFW) is included in South African PrEP guidelines since 2021; however, integration of PrEP services within ante- and postnatal care remains limited.MethodsBetween March 2022 and September 2023, we evaluated the integration of PrEP for PBFW in eight antenatal clinics in Cape Town, South Africa, following training and mentorship of providers. We applied an adapted Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework to evaluate the integration of PrEP services for pregnant and breastfeeding women. Before the study, PrEP was not routinely offered. We implemented a staff didactic/practice-based training and mentorship on PrEP provision targeting PBFW. We evaluated the following: (1) Reach as the proportion of women initiating PrEP among women counselled and tested for HIV, (2) effectiveness as PrEP continuation up to 3 months by pregnant vs. breastfeeding women, (3) adoption of PrEP integration via pre- and post-training assessments and ongoing mentorship assessments, (4) implementation through clinic trends of PrEP offer over time, and (5) maintenance: continued PrEP offer 3 months following the intervention.ResultsIn 8 facilities providing ante- and postnatal care, we trained 224 healthcare providers (127 nurses and 37 counsellors). Of those, we mentored 60 nurses, midwives, and HIV counsellors working with pregnant and breastfeeding women, with 80% of nurse/midwives and 65% of counsellors scoring ≥ 80% on the final mentoring assessment. Overall, 12% of HIV-negative pregnant women started PrEP, and 41% of those continued PrEP up to 3 months. Among HIV-negative breastfeeding women, 14% initiated PrEP, and 25% continued PrEP up to 3 months. All eight facilities continued providing PrEP 3 months post intervention.ConclusionsIn these high HIV prevalence clinics, the proportion of pregnant and breastfeeding women initiating and continuing PrEP rapidly increased but was limited among breastfeeding women. Staff training, mentorship, and PrEP integration were well-adopted by nurses and counsellors, and services continued following the intervention. Barriers included limited HIV testing of breastfeeding mothers and need for additional PrEP-trained nurses.

Adaptation and pilot testing of an HIV Behavioral Intervention- Chicos Net (CN) for Gay Latino Men (GLM)

Chicos Net (CN) is a globally oriented research program aimed at preventing HIV transmission, initially developed for Latino MSM (men who have sex with other men) in Toronto, Canada. Later, it was modified to fit the cultural preferences of gay men living in Cali, Colombia. The study aimed to reduce the incidence of HIV infection in these communities. The intervention consisted of four sessions, 12 hours, following a prearranged manual. CN covers a range of subjects, such as deepening knowledge about HIV, investigating the impacts of homophobia, studying migration experiences on international (Canada) and local (Cali, Colombia) rural-to-urban scales, exploring dating, analyzing the repercussions of social isolation, and navigating LGBT environments. The intervention consisted of administering a questionnaire before and after and doing a pre-post t-test. The results demonstrate positive effects in terms of social support and efficacy in negotiating condom use.

Evaluating the performance of a risk assessment score tool to predict HIV acquisition among pregnant and postpartum women in Kenya.

Clinical risk score tools require validation in diverse settings and populations before they are widely implemented. We aimed to externally validate an HIV risk assessment tool for predicting HIV acquisition among pregnant and postpartum women. In the context of prevention of mother-to-child transmission programs, risk score tools could be used to prioritize retesting efforts and delivery of pre-exposure prophylaxis (PrEP) to pregnant and postpartum women most at risk for HIV acquisition while minimizing unnecessary perinatal exposure. Data from women enrolled in a cross-sectional study of programmatic HIV retesting and/or receiving maternal and child health care services at five facilities in Western Kenya were used to validate the predictive ability of a simplified risk score previously developed for pregnant/postpartum women. Incident HIV infections were defined as new HIV diagnoses following confirmed negative or unknown status during pregnancy. Predictive performance was assessed using the area under the receiver operating characteristic curve (AUC) and Brier score. Among 1266 women with 35 incident HIV infections, we found an AUC for predicting HIV acquisition of 0.60 (95% CI, 0.51, 0.69), with a Brier score of 0.27. A risk score >6 was associated with a 2.9-fold increase in the odds of HIV acquisition (95% CI, 1.48, 5.70; p = 0.002) vs scores ≤6. Women with risk scores >6 were 27% (346/1266) of the population but accounted for 52% of HIV acquisitions. Syphilis, age at sexual debut, and unknown partner HIV status were significantly associated with increased risk of HIV in this cohort. The simplified risk score performed moderately at predicting risk of HIV acquisition in this population of pregnant and postpartum women and may be useful to guide PrEP use or counseling.

Investigating a surface water quality monitoring approach for QwaQwa, South Africa, by combining biological in vitro tests and chemical analyses

IntroductionWater quality assessment is a fundamental requirement for comprehensive water management. Access to water is not exclusively a quantitative issue, as human activities often lead to negative impacts on water quality due to pollution. This results in a need for the systematic monitoring of water bodies to surveil ongoing pollution dynamics and, if needed, facilitate the implementation of suitable solutions for water quality management.MethodsTo that effect, in March 2022 and July 2023, we conducted two sampling campaigns in four headwater streams in QwaQwa, South Africa, to assess the water quality under high (summer) and low (winter) flow conditions. The overarching aim was to support local decision-makers with relevant information on water quality in a semirural and less studied area. Beside the hydrological characterization of the catchment, which drains the mountainous areas around Phuthaditjhaba (the main town of the region), physicochemical and biological monitoring were conducted, including in vitro tests detecting endocrine disruption, dioxin-like impacts, and genotoxic potentials in the water.ResultsThe elemental analysis showed that at several sampling sites, Al, Cu, Mn, Fe, and Zn were above the Target-Water-Quality-Range (TWQR) for aquatic ecosystems and Fe, Al, and Mn were additionally above the TWQR for domestic use. Interestingly, the organic micropollutants (OMPs) revealed a region with a high incidence of HIV infections, given the occurrence of the drugs efavirenz, its transformation product 8-OH-efavirenz and nevirapine, among other micropollutants. Possibly, the signals from the in vitro tests for endocrine disruption are also induced by the detected micropollutants. Our results ultimately show that even though anthropogenic impacts increase from upstream to downstream, none of the sampling sites are without concern. This indicates the urgent need for measures to increase the water quality of these headwater streams in this region.

Examining the epidemiology of AIDS-defining and HPV-associated cancers in HIV endemic areas of south Florida for development of targeted intervention.

e22522 Background: The Miami-Dade and Broward Counties in South Florida (SF) have the highest incidence of HIV infection in the United States, with over 47,000 people living with HIV as of 2021. The epidemiology and burden of cancers associated with HIV in SF have not been fully described, hampering efforts for effective cancer control. This study examines the regional epidemiology of AIDS-defining cancers and HPV-associated cancers, for which HIV+ patients face higher risk. The results are used to develop education and community screening events targeting communities with high incidences of these cancers. Methods: The catchment area of Sylvester Comprehensive Cancer Center, consisting of Miami-Dade, Broward, Palm Beach, and Monroe Counties for a total population of six million was studied. Using the 2015-2019 data from Florida’s official cancer registry, age-adjusted incidences (AAI) for AIDS-defining cancers and HPV-associated cancers were calculated for all census tracts in SF. Geospatial hot spot analysis was then applied to identify statistically significant clusters (hot spots) of census tracts with high AAI of these cancers. Results: We identified two clusters of hot spots for AIDS-defining and HPV-associated cancers in SF. Except for penile cancer in one cluster, both clusters have HPV-associated cancer incidences that are significantly higher than the state averages. Specifically, one cluster has the highest incidence of anal cancer in SF, while the other has a notable concentration of penile cancer. Conclusions: Using the results, we have developed targeted educational and screening events for communities within the hot spots. A screening summit was recently held in a hot spot community where several screening and educational events were offered on a single day. By sharing information about the epidemiology of these cancers, we were able to facilitate community buy-in and develop working relationships with community partners to provide culturally competent and targeted intervention for a population who are less likely to undergo screening. [Table: see text]

Efficacy of Voluntary Medical Male Circumcision to Prevent HIV Infection Among Men Who Have Sex With Men : A Randomized Controlled Trial.

Observational studies suggest that voluntary medical male circumcision (VMMC) may lower HIV risk among men who have sex with men (MSM). A randomized controlled trial (RCT) is needed to confirm this. To assess the efficacy of VMMC in preventing incident HIV infection among MSM. An RCT with up to 12 months of follow-up. (Chinese Clinical Trial Registry: ChiCTR2000039436). 8 cities in China. Uncircumcised, HIV-seronegative men aged 18 to 49 years who self-reported predominantly practicing insertive anal intercourse and had 2 or more male sex partners in the past 6 months. VMMC. Rapid testing for HIV was done at baseline and at 3, 6, 9, and 12 months. Behavioral questionnaires and other tests for sexually transmitted infections were done at baseline, 6 months, and 12 months. The primary outcome was HIV seroconversion using an intention-to-treat analysis. The study enrolled 124 men in the intervention group and 123 in the control group, who contributed 120.7 and 123.1 person-years of observation, respectively. There were 0 seroconversions in the intervention group (0 infections [95% CI, 0.0 to 3.1 infections] per 100 person-years) and 5 seroconversions in the control group (4.1 infections [CI, 1.3 to 9.5 infections] per 100 person-years). The HIV hazard ratio was 0.09 (CI, 0.00 to 0.81; P = 0.029), and the HIV incidence was lower in the intervention group (log-rank P = 0.025). The incidence rates of syphilis, herpes simplex virus type 2, and penile human papillomavirus were not statistically significantly different between the 2 groups. There was no evidence of HIV risk compensation. Few HIV seroconversions and limited follow-up period. Among MSM who predominantly practice insertive anal intercourse, VMMC is efficacious in preventing incident HIV infection; MSM should be included in VMMC guidelines. The National Science and Technology Major Project of China.

Progress towards the UNAIDS 95-95-95 targets in the Fifth Botswana AIDS Impact Survey (BAIS V 2021): a nationally representative survey

In 2014, UNAIDS set a goal to end the AIDS epidemic by achieving targets for the percentage of people living with HIV who were aware of their status, on antiretroviral therapy (ART), and virally suppressed. In 2020, these targets were revised to 95% for each measure (known as 95-95-95), to be reached among people living with HIV by 2025. We used data from the Fifth Botswana AIDS Impact Survey (BAIS V) to measure progress towards these testing and treatment targets in Botswana. BAIS V used a two-stage cluster design to obtain a nationally representative sample of people aged 15-64 years in Botswana. During March-August, 2021, 14 763 consenting participants were interviewed and tested for HIV in their households by survey teams. HIV-positive specimens were tested for viral load, presence of antiretroviral drugs, and recency of infection using the HIV-1 limiting antigen avidity enzyme immunoassay. Estimates of HIV-positive status and use of ART were based on self-report and the analysis of blood specimens for antiretroviral drugs. Viral load suppression was defined as an HIV RNA concentration of less than 1000 copies per mL. HIV incidence was calculated using the recent infection testing algorithm. Data were weighted to account for the complex survey design. The national HIV prevalence in Botswana among people aged 15-64 years was 20·8% and the annual incidence of HIV infection was 0·2%. 95·1% (men 93·0%, women 96·4%) of people living with HIV aged 15-64 years were aware of their status, 98·0% (men 97·2%, women 98·4%) of those aware were on ART, and 97·9% (men 96·6%, women 98·6%) of those on ART had viral load suppression. Among young people (aged 15-24 years) living with HIV, 84·5% were aware of their status, 98·5% of those aware were on ART, and 91·6% of those on ART had viral load suppression. The prevalance of viral load suppression among all people living with HIV was 91·8%, and varied by district-ranging from 85·3% in Gaborone to 100·0% in Selibe Phikwe. BAIS V is the first population-based survey worldwide to report the achievement of the UNAIDS 95-95-95 goals, both overall and among women. Strategies to reach undiagnosed men and young people, including young women, are needed. US President's Emergency Plan for AIDS Relief.

An Interactive Modeling Tool for Projecting the Health and Direct Medical Cost Impact of Changes in the Sexually Transmitted Diseases Prevention Program Budgets.

Estimating the return on investment for public health services, tailored to the state level, is critical for demonstrating their value and making resource allocation decisions. However, many health departments have limited staff capacity and expertise to conduct economic analyses in-house. We developed a user-friendly, interactive Excel-based spreadsheet model that health departments can use to estimate the impact of increases or decreases in sexually transmitted infection (STI) prevention funding on the incidence and direct medical costs of chlamydia, gonorrhea, syphilis, and STI-attributable HIV infections. Users tailor results to their jurisdictions by entering the size of their population served; the number of annual STI diagnoses; their prior annual funding amount; and their anticipated new funding amount. The interface was developed using human-centered design principles, including focus groups with 15 model users to collect feedback on an earlier model version and a usability study on the prototype with 6 model users to finalize the interface. The STI Prevention Allocation Consequences Estimator ("SPACE Monkey 2.0") model will be publicly available as a free downloadable tool. In the usability testing of the prototype, participants provided overall positive feedback. They appreciated the clear interpretations, outcomes expressed as direct medical costs, functionalities to interact with the output and copy charts into external applications, visualization designs, and accessible information about the model's assumptions and limitations. Participants provided positive responses to a 10-item usability evaluation survey regarding their experiences with the prototype. Modeling tools that synthesize literature-based estimates and are developed with human-centered design principles have the potential to make evidence-based estimates of budget changes widely accessible to health departments.

Cost-effectiveness of intervention combinations towards the elimination of vertical transmission of HIV in limited-resource settings: a mathematical modelling study

Since 2000, there has been a substantial global reduction in the vertical transmission of HIV. Despite effective interventions, gaps still remain in progress towards elimination in many low-income and middle-income countries. We developed a mathematical model to determine the most cost-effective combinations of interventions to prevent vertical transmission. We developed a 12-month Markov model to follow a cohort of women of childbearing age (aged 15-49 years) in Zambia (n=1 107 255) who were either pregnant, in delivery, or breastfeeding; the population included in the model reflects the estimated number of pregnant women in Zambia from the 2018 Zambia Demographic and Health Survey. The model incorporated nine interventions: infant prophylaxis; three different HIV retesting schedule options; oral pre-exposure prophylaxis; maternal peer-support groups; regimen shift; tracing of loss to follow-up; and point-of-care viral load testing. We analysed incident HIV infections among mothers and infants, intervention costs, and evaluated 190 scenarios of different combinations of inventions to calculate the incremental cost-effectiveness ratios (ICERs) over 1 year. Three interventions with the greatest reduction in vertical transmission, individually, were support groups for 80% of those in need (35% reduction in infant infections), HIV retesting schedules (6·5% reduction), and infant prophylaxis (4·5% reduction). Of all 190 scenarios evaluated, eight were on the cost-effectiveness frontier (ie, were considered to be cost-effective); all eight included increasing infant prophylaxis, regimen shift, and use of support groups. Excluding the highest-cost scenarios, for a 1-22% increase in total budget, 23-43% of infant infections could be prevented, producing ICERs between US$244 and $16 242. Using the interventions modelled, it is possible to reduce vertical transmission and to cost-effectively prevent up to 1734 infant HIV infections (43% reduction) in Zambia over a period of 1 year. To optimise their effect, these interventions must be scaled with fidelity. Future work is needed to incorporate evidence on additional innovative interventions and HIV risk factors, and to apply the model to other country contexts to support targeted implementation and resource use. The ELMA Foundation.

HIV epidemiologic trends among occupational groups in Rakai, Uganda: A population-based longitudinal study, 1999-2016.

Certain occupations have been associated with heightened risk of HIV acquisition and spread in sub-Saharan Africa, including female bar and restaurant work and male transportation work. However, data on changes in population prevalence of HIV infection and HIV incidence within occupations following mass scale-up of African HIV treatment and prevention programs is very limited. We evaluated prospective data collected between 1999 and 2016 from the Rakai Community Cohort Study, a longitudinal population-based study of 15- to 49-year-old persons in Uganda. Adjusted prevalence risk ratios for overall, treated, and untreated, prevalent HIV infection, and incidence rate ratios for HIV incidence with 95% confidence intervals were estimated using Poisson regression to assess changes in HIV outcomes by occupation. Analyses were stratified by gender. There were 33,866 participants, including 19,113 (56%) women. Overall, HIV seroprevalence declined in most occupational subgroups among men, but increased or remained mostly stable among women. In contrast, prevalence of untreated HIV substantially declined between 1999 and 2016 in most occupations, irrespective of gender, including by 70% among men (12.3 to 4.2%; adjPRR = 0.30; 95%CI:0.23-0.41) and by 78% among women (14.7 to 4.0%; adjPRR = 0.22; 95%CI:0.18-0.27) working in agriculture, the most common self-reported primary occupation. Exceptions included men working in transportation. HIV incidence similarly declined in most occupations, but there were no reductions in incidence among female bar and restaurant workers, women working in local crafts, or men working in transportation. In summary, untreated HIV infection and HIV incidence have declined within most occupational groups in Uganda. However, women working in bars/restaurants and local crafts and men working in transportation continue to have a relatively high burden of untreated HIV and HIV incidence, and as such, should be considered priority populations for HIV programming.

Incidence and Risks of HIV Infection, Medication Options, and Adverse Effects in Accidental Needle Stick Injuries: A Narrative Review.

Accidental needle sticks can lead to infections, including HIV. As scientists have learned more about HIV and its replicative physiology, identification of target sites and novel medications have been developed. HIV is spread throughout the population through contact with blood, semen, and rectal or vaginal secretions of infected individuals. Therefore, it is important in general for healthcare workers to be aware of its transmission modes and ways to minimize exposure. In this regard, even with hospitals providing education, training, and safety protocols, there is a continued infection spread with HIV, especially by accidental needle sticks.There is also a wide variety of testing that can be used for HIV utilizing different methodologies, allowing for improved measurement of infection status.Any person with HIV should be tested to clarify infection status and be educated to minimize future virus spread. The current CDC recommendations for HIV infection treatment are antiretroviral therapies, such as an HIV postexposure prophylaxis regimen, which consists of a cocktail of antiretrovirals and postexposure prophylaxis immediately for occupational exposures, such as accidental needlestick exposure from an HIV infected patient. To decrease accidental HIV stick injuries, there are safety precautions in place, that if followed, would help reduce this incidence.HIV accidental needle stick injuries still happen in the hospital workplace, but with proper education and treatment, if exposed, there is hope to minimize the effects.

ЗАБОЛЕВАЕМОСТЬ ВИЧ-ИНФЕКЦИЕЙ В РОССИИ И СУБЪЕКТАХ РОССИЙСКОЙ ФЕДЕРАЦИИ В ДИНАМИКЕ ЗА 2016-2022 ГОДЫ

Significance. The WHO global health sector strategy on HIV, viral hepatitis and sexually transmitted infections and the UNAIDS Global AIDS strategy aim to accelerate the global response to eliminate HIV infection in many countries around the world by 2030. According to UNAIDS, 39 million people worldwide were living with HIV in 2022 including 29.8 million people receiving antiretroviral therapy, which is 76.4% of the total number. In Russia for the period from 2017 to 2022 the number of newly diagnosed HIV cases dropped from 77,467 to 55,573, including during the Covid-19 pandemic. For the first time in 18 years, there has been a decline in the incidence of HIV infection in Russia. In this regard, it is relevant and timely to analyze changes in the incidence. The purpose of the study was to analyze dynamics in HIV incidence in Russia and constituent entities of the Russian Federation from 2016 to 2022. Material and methods: the analysis used information from the Federal statistical observation form No.61 and Rosstat data on the Russian population and population of 85 constituent entities of the Russian Federation in 2016-2022. Statistical processing used regression analysis methods. A simple linear regression model is constructed (scikit-learn 1.0.2 and Statsmodels 0.13.5). Results. In Russia, since 2019, the incidence of HIV infection has been decreasing and in 2022 it equaled to 37.8 per 100,000 population, which was largely due to a higher coverage of HIV-infected people with antiretroviral therapy, the share of whom increased from 50.1% to 83.3% in 2017-2021. Identifying a relationship between the HIV incidence and number of newly diagnosed HIV cases in 85 constituent entities of the Russian Federation in 2016-2022 shows that in 2016, in 11 of them, the percentage change in the HIV incidence did not correspond to the percentage change in the number of newly diagnosed HIV cases, up in its excess. However, in 2022, the number of such constituent entities decreased to singular, accompanied by a convergence of the outlying values with the upper limit of the confidence interval. The reason for this situation was the decreased population in 9 out of 11 constituent entities of this group. In 12 other constituent entities, the percentage change in HIV incidence in 2016 increasingly deviated from the corresponding percentage change in the number of newly diagnosed HIV cases, downwards. As a result, in 2022, the outlying values in 10 constituent entities were increasingly moving away from the lower limit of the confidence interval. The main reason for the current situation was a rise in population in this group of constituent entities of the Russian Federation. Conclusion. A decrease in the number of newly diagnosed patients with HIV infection with a simultaneous decrease in the population size is the dominant factor in determining incidence of HIV infection in constituent entities of the Russian Federation. As the number of newly diagnosed HIV cases declines and the population grows, the impact of this factor on HIV incidence increases. An increase in the number of constituent entities with the decreasing number of newly diagnosed HIV cases is reducing, and especially those with a simultaneous increase in population, will contribute to a faster trend pivot towards a decreasing HIV incidence.

ЗАБОЛЕВАЕМОСТЬ ВИЧ-ИНФЕКЦИЕЙ И НАРКОМАНИЕЙ В РОССИИ И ОСОБЕННОСТИ ИХ КОРРЕЛЯЦИИ

Significance. The structure of drug use in the Russian Federation (injectable, non-injectable, psychoactive and others) is undergoing changes, which may affect the ratio of HIV transmission routes. These changes in the epidemic process require further research to form adequate measures to counter the spread of HIV infection in the Russian Federation. The purpose of the study was to identify specific features of correlation between HIV infection and drug addiction incidence in Russia and describe their role and influence on the HIV epidemic process in Russia at the present stage. Material and Methods. The study used data of the federal statistical observation forms on HIV incidence – Form No.61 “Information about HIV-infection” and on drug addiction – Form No.11 “Information about incidence of substance dependence disorders”. Data on narcotic drugs were retrieved from the website of the Unified interdepartmental information and statistical system provided by the Ministry of Internal Affairs of the Russian Federation. Population data were taken from the Rosstat website. The study used correlation analysis. Data processing was carried out using the SPSS Statistics ver. 26. Results. The correlation analysis shows a significant relationship between HIV incidence and detection of injecting drug users in the Russian Federation. Since 2017, the relationship between HIV incidence and users of all types of narcotic drugs has become significant as well, while the share of injecting drug users among all drug users dropped from 50% in 2011 to 18.7% in 2021. According to data for 2017 to 2021, the number of crimes related to illicit drug trafficking, as well as the amount of narcotic drugs withdrawn and the number of administrative offenses related to illicit drug trafficking are decreasing. Conclusion. Changes in the structure of drug use – a decrease in the share of the opioid group and an increase in the share of synthetic drug use leads to a change in the structure of infection among all drug users – the share of sexual transmission is increasing; while the share of the injection is decreasing. Presumably, non-injectable psychoactive substances play an increasing role among the factors predisposing to risky sexual behavior, and the risk group is not limited to injecting drug users only. For the purpose of a further epidemiological analysis it seems appropriate to divide the risk group of drug users into injecting drug users and non–injecting drug users.

ЭПИДЕМИОЛОГИЧЕСКАЯ СИТУАЦИЯ С РАСПРОСТРАНЕНИЕМ ВИЧ-ИНФЕКЦИИ В ДАЛЬНЕВОСТОЧНОМ ФЕДЕРАЛЬНОМ ОКРУГЕ (КРАТКИЙ АНАЛИЗ ЗА 2023 г.)

HIV-infection remains a pressing issue in both Russia and Far Eastern Federal district. Current re-search was conducted to evaluate HIV epidemic tendencies in the Far Eastern Federal district. Cu-mulative number of HIV-infected has reached 56 799 people in early January 2024. HIV screening coverage of district population has reached 33.04%. HIV-infection incidence rate equaled 34.0 per 100 000 population, prevalence rate – 451.2 per 100 000 population in 2023. Rate of men among newly infected people with HIV remained high. Heterosexual route of transmission was prevailing. A total number of 83.5% of people living with HIV were registered for regular medical check-ups and 72.1% of them received antiretroviral therapy.

Demographic, Clinical, and Antiretroviral Regiment Treatment Characteristics of HIV/AIDS Patients at the Regional General Hospital of Central Papua

The incidence of HIV infections in Papua is currently on the rise, primarily due to restricted access to antiretroviral treatment and insufficient support and care. Additionally, there is a lack of awareness among residents in rural or mountainous areas about HIV/AIDS infection, as provided by healthcare professionals. Until now, research data have been scarce on the demographic characteristics, clinical features, and treatment approaches for HIV/AIDS patients in the interior regions of Papua. This data is crucial for devising strategies aimed at enhancing healthcare services for individuals affected by HIV/AIDS.Consequently, this study endeavors to gain insights into the demographic characteristics, clinical features, and treatment modalities for HIV/AIDS patients at the Regional General Hospital of the Central Papua Region. It employs an observational descriptive approach, utilizing medical records of HIV/AIDS patients who visited the Central Papua Regional Government Hospital in June 2023. The findings indicate that, based on demographic data, the majority of patients were, on average, ≤25 years old (60.8%), male (52.5%), married (56.7%), and the highest number of HIV/AIDS cases were among secondary education graduates (40.8%). The majority were employed (67.5%) with incomes below the minimum wage threshold (69.2%). All heterosexual patients exhibited behavioral risk factors, and 4.2% had comorbidities such as hypertension. Tuberculosis was the most common opportunistic infection (17.5%). The highest proportion of individuals with HIV/AIDS were in stage II (66.7%). The predominant antiretroviral treatment regimen was a fixed-dose combination (FDC) containing Tenofovir 300mg, Lamivudine 300mg, and Efavirenz 600mg. The duration of use of ARV therapy in people with HIV / AIDS is at most 1 month.