Rate Of Human Immunodeficiency Virus Transmission Research Articles

The prevalence of vertical transmission of human immunodeficiency virus and associated factors among exposed infants in Eastern Lake zone and Southern Highland of Tanzania: a cross-sectional study

Background Globally, the rate of antiretroviral therapy coverage for pregnant women living with human immunodeficiency virus (HIV) increased by 38% between 2010 and 2015 but only by 2% between 2016 and 2020. Objectives We aimed to determine the prevalence of vertical transmission of HIV among infants from mothers living with HIV and associated factors in the Eastern Lake Zone and Southern Highland of Tanzania from January to December 2022. Methods This retrospective cross-sectional study extracted data from the Open Laboratory Data Repository database collected from January to December 2022 at 93 health facilities. A total of 1,411 infants exposed to HIV from the Mbeya (851), Songwe (304), and Mara regions (256) were enrolled. Results The prevalence for vertical transmission of HIV was 2.48% (35/1411). We observed a non-significant difference in the prevalence of vertical transmission in children whose first test was done below six weeks of life (1.89%) and other age groups (2.52-2.62%) (p < 0.917). Children not given antiretroviral prophylaxis had eleven times higher odds of acquiring infection (AOR 11.39, 95% CI: 3.61–35.97). Mothers who were not on ART during pregnancy had three times the odds of transmitting HIV to their infants (AOR 3.03, 95%CI: 0.91–10.15). Conclusions We found a low prevalence of vertical transmission of HIV compared to previous studies done in Tanzania. The use of ART prophylaxis for infants exposed to HIV is significantly associated with the low rate of HIV transmission.

Virological non-suppression and associated factors among adult patients receiving antiretroviral therapy at selected health facilities in uMgungundlovu district of KwaZulu Natal, South Africa: a cross-sectional study.

virological non-suppression is not only associated with increased risk of transmission of the Human Immunodeficiency virus (HIV) to others; perinatally and sexually, but it also decreases the life expectancy among the individuals who are on antiretroviral therapy (ART). This study sought to determine the level of virological non-suppression among ART patients from selected health facilities of a sub-district in uMgungundlovu district. This sub-district has high HIV transmission rates in KwaZulu Natal (KZN) and had one of the highest HIV prevalence in the district in 2018; population weighted HIV prevalence of 36.3% among men and women aged 15-49 years old, which was twice the average national prevalence of 18.8%. this descriptive, cross-sectional, and quantitative study was conducted among participants who were HIV-positive, 18 years old and above, and initiated on ART between January 2017 and January 2019 at selected PHC facilities of Vulindlela sub district. Health facility treatment registers, patient medical files and face-to-face interviews were used to collect the data and these were captured onto an Excel spreadsheet, cleaned, coded before importation into Epiinfo 17 for statistical analyses. Logistic regression analyses were conducted to investigate the factors associated with virological non-suppression. the study found a majority of participants were females (240/401 (60%)). The mean age of the participants was 38.1 (SD=11.2), with most participants who were between the ages of 29 and 39 years old (167 (41.7%)). Virological non-suppression was observed among 10% (40/401) of participants. The odds of virological non-suppression were higher among participants who were married (aOR 4.76, 95% CI 1.49-15.19; p=0.008). a virological non-suppression of 10% translates to viral suppression of 90%, which is below the target of UNAIDS 95-95-95 strategy. Hiding and skipping medication indicate how non-disclosure continues to hinder HIV treatment adherence. High odds of virological non-suppression among married participants indicate non-disclosure of the positive HIV status, or lack in spousal support.

Determinants of Mother to Child Transmission of HIV in Public Hospitals of West Shewa Zone, Oromiya Region: Mixed Method Study.

Background Mother-to-child transmission of HIV (MTCT) occurs when a mother infected with the human immunodeficiency virus (HIV) passes the virus to her child. Without intervention, the transmission rate of HIV ranges from 15% to 45%. With effective interventions, this rate can be reduced to below 5%. Ethiopia aimed to reduce transmission to lower than 5% by 2020, but their final MTCT rate was 15% in 2016. The aim of this study was to identify the determinants of HIV transmission from mother to child in the West Shoa Zone of the Oromiya region. Methods: This study employs mixed methods, including an unmatched case-control study among children who tested HIV positive and negative at the end of Prevention of Mother-to-Child Transmission (PMTCT) follow-up and one -on - one interview. Additionally, one-on-one interviews with mothers of positive infants were conducted. Variables of interest were collected using structured and semi-structured questionnaires and data abstraction forms from mothers of exposed infants, medical records of mothers, and children. Results: The majority of cases (70.8%) were not included in the Option B+ program. Home delivery increases the chance of HIV transmission by six times, AOR=6.0; CI (1.5–29.2). None-inclusion in the Option B+ program increases the chance of transmission by 18 times, AOR=18.0; CI (5.0–68.1). Partner non-involvement in HIV care increases the chance of transmission by 7.3 times, AOR=7.3; CI (1.1–37.4). The mother-to-mother support program decreases the chance of transmission by 86.5%, AOR=0.13; CI (0.11–0.39). Poor antenatal care (ANC) awareness and practices among rural residents, and unstable marriage in urban residents, contribute to unaware MTCT of HIV. Conclusion: ART clinics should focus on and strengthen the mother-to-mother support program, create space for partner involvement in HIV care, and provide training for Health Extension Workers (HEWs). Health education and awareness creation should be implemented by HEWs to improve ANC practices, reduce home delivery, and increase voluntary counseling and testing among residents.

Quantitative Assessment of a Dual Epidemic Caused by Tuberculosis and HIV in the Philippines.

Tuberculosis (TB) and human immunodeficiency virus (HIV) are the two major public health emergencies in the Philippines. The country is ranked fourth worldwide in TB incidence cases despite national efforts and initiatives to mitigate the disease. Concurrently, the Philippines has the fastest-growing HIV epidemic in Asia and the Pacific region. The TB-HIV dual epidemic forms a lethal combination enhancing each other's progress, driving the deterioration of immune responses. In order to understand and describe the transmission dynamics and epidemiological patterns of the co-infection, a compartmental model for TB-HIV is developed. A class of people living with HIV (PLHIV) who did not know their HIV status is incorporated into the model. These unaware PLHIV who do not seek medical treatment are potential sources of new HIV infections that could significantly influence the disease transmission dynamics. Sensitivity analysis using the partial rank correlation coefficient is performed to assess model parameters that are influential to the output of interests. The model is calibrated using available Philippine data on TB, HIV, and TB-HIV. Parameters that are identified include TB and HIV transmission rates, progression rates from exposed to active TB, and from TB-latent with HIV to active infectious TB with HIV in the AIDS stage. Uncertainty analysis is performed to identify the degree of accuracy of the estimates. Simulations predict an alarming increase of 180% and 194% in new HIV and TB-HIV infections in 2025, respectively, relative to 2019 data. These projections underscore an ongoing health crisis in the Philippines that calls for a combined and collective effort by the government and the public to take action against the lethal combination of TB and HIV.

Vertical Transmission Rate of Human Immunodeficiency Virus Exposed Twin Pregnancies and Associated Factors in West Bengal, India: a Retrospective Cohort Study.

Twin pregnancies are often associated with adverse obstetric outcomes. The mother-to-child transmission of the human immunodeficiency virus (HIV) in twin pregnancies has been less explored. Therefore, the present study aimed to determine the risk of vertical transmission of HIV in HIV-exposed twin pregnancies compared with that of singleton pregnancies and to explore the associated factors. We conducted a retrospective cohort study involving 348 HIV-exposed babies (58 twins and 290 singletons) through a systematic sampling from the program database of West Bengal, India, from April 2016 to March 2021. HIV vertical transmission rates were compared between single and twin live births. The effects of factors such as maternal age, timing of maternal HIV diagnosis, duration of antiretroviral treatment, mode of delivery, birth weight, and the sex of the baby were determined. The HIV transmission rate for twin pregnancies (15.5%) was significantly higher than that for single live births (5.5%) (adjusted odds ratio [OR] = 3.38 [1.17-9.69]). Among twin deliveries, maternal HIV diagnosis during the intrapartum and postpartum period was associated with HIV transmission (crude OR = 11.0, [2.2-54.9]). Perinatal HIV transmission is more common in twin pregnancies and is associated with the time of detection of maternal HIV. Therefore, early HIV detection and additional antiretroviral regimens should be considered for twin pregnancies.

Black Adolescent Females' Perceptions of PrEP for HIV Risk Reduction.

Preexposure prophylaxis (PrEP) for human immunodeficiency virus (HIV) prevention is approved for use in adolescents, though uptake remains low. Black adolescent females experience higher rates of HIV transmission compared to adolescent females of other racial/ethnic groups. Increasing PrEP awareness and education among this population may be an effective strategy to mitigate disparities in HIV transmission among Black adolescent females. Twenty-seven Black adolescent females participated in focus groups which were coded using the constant comparative method of qualitative analysis to identify major themes: (1) PrEP is not commonly framed as an HIV prevention strategy for heterosexual Black adolescent females, (2) PrEP use among peers is perceived as mostly positive, (3) Adoption of PrEP among Black adolescent females is impeded by perceived barriers such as stigma, negative side effects, and adherence concerns. These findings may inform the development of targeted culturally tailored marketing and educational campaigns centered on Black heterosexual adolescent females to increase PrEP awareness and uptake in this population disproportionately affected by HIV.

An Audit on HIV Infection

The human immunodeficiency virus (HIV) is a retrovirus which stores its genetic information in single-stranded RNA and which causes AIDS and HIV Infection. In Acquired Immunodeficiency syndrome the patient's immune system collapses, and the patient may be prone to infecting bacteria, viruses, and fungi. HIV may be transmitted through body fluids of infected patient body fluids including blood, seminal fluid, vaginal fluid, and breast milk. CD4 Cells, T-cells, and macrophages get infected by the human immunodeficiency virus HIV. This Infection results in low levels of T cells by programmed cell death of T cells which is associated with antimicrobial response during inflammation.&#x0D; The manifestations of Acquired immunodeficiency syndrome are due to opportunistic infection caused by other microorganisms naturally managed by person immune systems damaged by HIV infection. The rate of HIV transmission decreases with the condoms; it gives a comparable level of assurance. Human Immunodeficiency Virus transmission can be prevented among health care workers by wearing necessary personal protective equipment. The universal body fluid and blood precautions should be followed for all such invasive procedures. Face shields, gloves, and gowns are meant to be worn whenever performing invasive procedures. Laboratory workers should use safety cabins for handling specimens or doing lab procedures. Mouth pipetting should be avoided, and Automatic pipetting tools should be used. The work surfaces of the Laboratory ought to be cleaned with suitable disinfectant after spilling of sample. If the laboratory machine or devices are ,infected, they should be sterilized or cleaned with Disinfect before to fixing. After finishing laboratory testing or work, the laboratory workers should remove their protective equipment, wash their hands, and leave their protective equipment in the Laboratory.

Awareness of and willingness to use HIV pre-exposure prophylaxis among community residents.

Human Immunodeficiency Virus (HIV) Pre-exposure prophylaxis (PrEP) helps to decrease HIV acquisition and transmission rates. The purpose of this study was to assess awareness of HIV PrEP and willingness to use it, if available, among individuals residing in Buea, Cameroon. Residents in different communities throughout Buea, Cameroon participated in the study through survey completion with their responses assessed by age, marital status, highest level of education completed, profession, and health area (urban or rural). 421 participants completed the survey with the majority being 20-29 years of age, single, having secondary or tertiary education, residing in rural Cameroonian areas. Eighty percent of respondents had not previously heard of HIV PrEP. Ninety-five percent of the study sample expressed willingness to use HIV PrEP, if available. Participants ages 40 years old and above were less aware of HIV PrEP than those 39 years old and younger. Primary education, serving in the role of a nurse, doctor, or scientist, along with hospital affiliations were characteristics closely associated with HIV PrEP awareness. Participants younger than 20 years old were less likely to report willingness to use HIV PrEP whereas married participants found HIV PrEP to be a more favorable option. Awareness of HIV PrEP was minimal with healthcare personnel having more familiarity. Willingness to use HIV PrEP decreased by age but higher among married participants. Further promotion of HIV PrEP and facilitating its accessibility can lead to less transmissions of HIV worldwide.

Gaps in the Care Cascade among Human Immunodeficiency Virus-Exposed Infants Born in 2017 in Mashonaland East Province of Zimbabwe.

Introduction:Prevention of mother-to-child transmission (PMTCT) is a key strategy for ending the human immunodeficiency virus (HIV) pandemic. Most studies have focused on the mothers' side of the PMTCT cascade or the rate of vertical HIV transmission. Information on child-focused cascade is limited. We aimed to evaluate HIV testing, antiretroviral therapy (ART), and cotrimoxazole prophylaxis uptake and associated factors among HIV-exposed infants (HEIs) born in 2017.Methods:This was a record-based descriptive study in Mashonaland East Province, Zimbabwe. We analyzed routinely collected program data abstracted from electronic and paper-based HEI registers. Uptakes were calculated as proportions while associations were measured using adjusted risk ratios (log-binomial regression).Results:Of 1028 HEIs, 1015 (98.7%) were commenced on nevirapine prophylaxis, while 915 (89.0%) were commenced on cotrimoxazole prophylaxis. A total of 880 (85.0%) HEIs were tested for HIV by 6 weeks and 445 (44.4%) by 9 months. Overall, 40 (3.9%) were found to be HIV positive, and of them, 34 (85.0%) commenced on ART. Secondary and tertiary health facilities, being born through nonvaginal delivery, and certain districts were significantly associated with not commencing cotrimoxazole prophylaxis or getting tested for HIV. One district was associated with less risk of not having an HIV test by 9 months.Conclusions:While nevirapine, cotrimoxazole, and ART uptake were high among the HEIs, HIV testing by 9 months was suboptimal. The vertical HIV transmission rate was 3.9%. There is a need to strengthen HIV testing and antiretroviral and cotrimoxazole prophylaxes, especially at high-level facilities and certain districts.

Intrapartum human immunodeficiency virus transmission rate in a central hospital in the Western Cape province after universal antiretroviral therapy roll-out.

The national human immunodeficiency virus (HIV) mother-to-child transmission rate at 6–10 weeks post-partum was 0.9% in 2016. There is a paucity of data about the intrapartum transmission rate after lifelong antiretroviral therapy was implemented in 2015. We assessed all pregnant women living with HIV who delivered at Tygerberg Hospital in 2017. Positive polymerase chain reactions (PCRs) at birth indicated an in utero transmission rate of 0.8%. One infant with a negative PCR at birth tested positive at 6–10 weeks. The intrapartum transmission rate was low (0.08%). About 25% of infants were lost to follow-up after birth.

Mother-to-Child Transmission of HIV and Its Predictors Among HIV-Exposed Infants at an Outpatient Clinic for HIV/AIDS in Vietnam.

BackgroundMother-to-child transmission (MTCT) of human immunodeficiency virus (HIV) is decreasing worldwide; however, achieving the MTCT elimination target of 2% by 2020 and 0% by 2030 is challenging in resource-limited countries. The purpose of this study is to determine the evolution of the HIV transmission rate in infants from 2007 to 2018 and to identify the risk factors of HIV transmission among HIV-exposed infants in Vietnam.Patients and MethodsA prospective cohort study of 608 HIV-exposed infants was conducted at the Pediatric Outpatient Clinic (pOPC) of the Women and Children Hospital of An Giang, Vietnam between September 2007 and December 2019. A follow-up registration book was used to collect data, which were entered into Microsoft Excel and analyzed by SPSS version 22.0. Both bivariate and multivariate analyses were carried out to identify associations.ResultsA total of 608 HIV-exposed infant were enrolled in the study, of which 472 were included in the final analysis. The median age of infants at enrollment to follow-up was 6.3 weeks (interquartile range [IQR]=6.0–6.9 weeks). A total of 42 infants out of 472 were infected with HIV, giving an overall MTCT rate of 8.9% (95% confidence interval (CI)=6.4–12.0). The transmission rate decreased from 27.9% in 2007 to 0% in 2018. Absence of maternal ARV (antiretrovirals) intervention before or during pregnancy (AOR=40.6, 95% CI=5.5–308) and absence of ARV prophylaxis for HIV-exposed infants (AOR=3.4, 95% CI=1.1–10.3) were significantly and independently associated with MTCT of HIV in this study.ConclusionThere is a significant progress on the reduction of MTCT rate in An Giang, Vietnam. Absence of ART interventions for mothers and infants are significant factors associated with HIV transmission. Providing free ARV and increasing the coverage of ARV intervention for pregnant women are keys for reducing the MTCT rate in the future.

Mother-to-child transmission of HIV: An 11-year experience in a single center and HIV prevention effectiveness in Taiwan

Mother-to-child transmission (MTCT) of human immunodeficiency virus (HIV) has become an essential global health issue and its elimination is a crucial target. A prenatal "opt-out" HIV screening program was initiated in 2005 in Taiwan. In recent 3 years, approximate screening and MTCT rates were 99% and 2.27% (1/44), respectively. Here, we describe the clinical management of mothers infected with HIV and MTCT rate at National Taiwan University Hospital (NTUH), Taipei, Taiwan, in the years after the program was initiated. We retrospectively reviewed charts of pregnant women infected with HIV, who were managed at NTUH between January 2005 and December 2016. HIV infection status of 39 infants born to mothers infected with HIV was available. Between 2005 and December 2016, 50 pregnant women infected with HIV, with 57 parities were managed at NTUH, and 57 live infants were born. We excluded 18 parities because of missing data. Maternal antiviral treatment was administered in 37 of 39 infants. Only one infant tested positive for an HIV antibody test at 18 months, but showed definitive HIV exclusion at 20 months after a series of tests without administration of antiviral treatment. MTCT rate was 0%. Successful implementation of available perinatal HIV intervention dramatically reduced vertical transmission rate of HIV. MTCT rate was 0% in NTUH after the program. However, as NTUH is an HIV referral center, additional efforts are needed to achieve the World Health Organization criteria of lowering the vertical transmission rate of HIV to <2% in Taiwan.

HIV transmission between spouses living in Lu'an city, Anhui province, China: a longitudinal study.

This study aims to investigate the human immunodeficiency virus (HIV) transmission rate in HIV serodiscordant couples, in addition to the relevant influencing factors. From January 1999 to August 2016, patients with HIV/AIDS (index cases) along with their fixed partners were registered and monitored to determine the rate of HIV transmission between couples, as well as relevant influencing factors. A total of 231 HIV-positive couples were investigated, of these, 45-negative (19.48%) partners were infected with HIV via sexual transmission prior to diagnosis of the first case detected in couples. After diagnosis, the transmission rate between spouses was 0.39 per 100 person-years (2/507.7), and the cumulative transmission rate was 1.08% (2/186), which was significantly lower than the transmission rate before diagnosis (χ2 = 35.714, P &lt; 0.001). Among the 119 HIV/AIDS patients who received antiretroviral therapy (ART), the transmission rate was 0 (0/119), whereas the transmission rate was 2.99% (2/67) in HIV/AIDS patients who did not receive ART. In addition, HIV transmission rate in serodiscordant couples was high prior to diagnosis of the index case. However, following diagnosis, the transmission rate was reduced, and the risk of transmission in the index case with antiviral treatment was null. Therefore, a prompt intervention in HIV discordant couples with ART of index case is vital to reduce the risk of HIV transmission.

Evaluation of non-adherence to anti-retroviral therapy, the associated factors and infant outcomes among HIV-positive pregnant women: a prospective cohort study in Lesotho.

IntroductionSuccess in addressing prevention of mother-to-child transmission of HIV depends largely on good adherence to anti-retroviral therapy (ART) by pregnant women. Knowledge of the levels of ART adherence among pregnant women is essential to inform strategies to prevent or reduce HIV transmission rates, particularly in African settings. Aim: the primary objective of this study was to measure adherence to anti-retroviral therapy (ART) among pregnant women living with human immunodeficiency virus (HIV). The secondary objectives were to determine: i) the rate of new infections among children at Mabote Filter Clinic in Maseru, Lesotho whose mothers were enrolled in PMTCT, and ii) the factors associated with non-adherence to ART among pregnant women.MethodsIn this prospective cohort study, HIV-positive pregnant women receiving antiretroviral therapy (ART) for prevention of mother to child transmission (PMTCT) were followed up to delivery and their children were tested for HIV. We collected socio-demographic information, knowledge of PMTCT and adherence to ART (three-day recall and pill count) including reasons for non-adherence. We also used logistic regression to explore factors associated with non-adherence.ResultsOne hundred and seven women were included. The mean (standard deviation) age of the participants was 28.2 (5.7) years. Most, 81.3% (87/107), were married, only 9.3% (10/107) had a postsecondary education. Two-thirds (63.6%: 68/107) of the participants started ART because of PMTCT. Only 78.5% (84/107) of the participants had adequate knowledge of the importance of PMTCT. The three-day self-reported non-adherence rate at the first visit was 7.5% (95% confidence interval (CI): 3.7, 13.1), but up to 43.4% (95% CI: 35.2, 51.9) using pill count. The most frequently reported reasons for not adhering were: running out of pills (7.5%), nausea (5.6%) and to avoid side-effects (3.7%). Women who were employed (odds ratio (OR) 4.35; 95% CI: 1.38,14.29; p = 0.012) and at a higher gestational age (OR = 1.43; 95% CI: 1.11, 1.85; p = 0.006) were more likely to be non-adherent. Only 1 of the 77 exposed infants was found to be positive for HIV at 6 weeks after birth.ConclusionWe found a higher non-adherence rate for participants with pill count compared to a three-day adherence self-report. However, mother to child HIV transmission was relatively low. Lack of employment and relatively high gestational age were found to be predictive factors of non-adherence.

Public Health Detailing to Increase Routine HIV Screening in Baltimore, Maryland: Satisfaction, Feasibility, and Effectiveness.

The objective of this study was to evaluate the satisfaction with, and the feasibility and effectiveness of, a public health detailing project focused on increasing routine human immunodeficiency virus (HIV) screening of people aged 13-64 by primary care providers working in areas of Baltimore City, Maryland, with high rates of HIV transmission (defined as a mean geometric viral load of ≥1500 copies/mL per census tract). In public health detailing, trained public health professionals (ie, detailers) visit medical practice sites to meet with providers and site staff members, with the intention of influencing changes in clinical practice policy and/or behavior. During 2014, detailers made personal visits and gave HIV Testing Action Kits containing maps, educational and guideline documents, and resource lists to 166 providers and office managers at 85 primary care sites. At follow-up, 88 of 91 (96.7%) providers and 37 of 38 (97.4%) clinic managers were very satisfied or satisfied with the project. Of the 79 sites eligible at follow-up (ie, those that had not closed or merged with another practice), 76 (96.2%) had accepted at least 1 HIV Testing Action Kit, and 67 of 90 (74.4%) providers had increased their HIV screening. Public health detailing projects can be used to educate and support providers, establish relationships between providers and local health departments, and disseminate public health messages.

Primary Care Providers Have Limited Knowledge About STI Screening And HIV PrEP in Men Who have Sex with Men

BackgroundMen who have sex with men (MSM) are at greater risk for human immunodeficiency virus (HIV) and other sexually transmitted infections (STIs). Several studies have demonstrated that HIV pre-exposure prophylaxis (PrEP) for MSM can lower rates of HIV acquisition. However, PrEP may lead to risk compensation and higher rates of non-HIV STIs. We hypothesized that PCPs’ knowledge of CDC recommendations for STIs and PrEP in MSM would be low.MethodsTo assess knowledge of CDC STI screening and PrEP recommendations we emailed an anonymous questionnaire, to 314 primary care physicians and mid-level practitioners employed by Baystate Medical Center, a 716-bed academic medical center in Springfield, MA. Knowledge scores were calculated as the number of correct items, divided by the total number of items. One-way analysis of variance and Fisher’s exact test was used to test for knowledge differences between groups. P < 0.05 was considered statistically significant.ResultsOne hundred and thirty of 314 invited clinicians opted in and 109 completed the survey (35% effective response rate). Most respondents (89%, n = 97) were physicians, the remainder (n = 12, 11%) were mid-level practitioners. Thirty-seven respondents (34%) reported having been trained in MSM-specific care. The mean ± SD knowledge score was 49% ± 29% (range: 0% to 100%). Knowledge was low whether respondents reported receiving previous training in MSM-specific care or not (knowledge score 49% if yes vs. 48% if no, P = 0.87) or receiving specific STD screening education (knowledge score = 51% if yes vs. 41% if no, P = 0.14). Seventy-two respondents (66%) reported providing care for MSM patients of which 29 (40%) reported having discussed PrEP with at least a few patients in the last year. Among the 29 who discussed PrEP at least once, 13 (45%) correctly answered the PrEP indication question compared with 8 (24%) of those who did not discuss PrEP.ConclusionPCP knowledge of STI screening guidelines and PrEP indications for MSM is low, even among those PCPs who reported receiving MSM-specific training. In light of studies demonstrating PrEP can lead to lower HIV transmission rates among MSM while potentially increasing STI rates, efforts to educate clinicians on PrEP and STI screening should be a priority.Disclosures All authors: No reported disclosures.

Benefits and Risks of Antiretroviral Therapy for Perinatal HIV Prevention

BackgroundRandomized-trial data on the risks and benefits of antiretroviral therapy (ART) as compared with zidovudine and single-dose nevirapine to prevent transmission of the human immunodeficiency virus (HIV) in HIV-infected pregnant women with high CD4 counts are lacking.MethodsWe randomly assigned HIV-infected women at 14 or more weeks of gestation with CD4 counts of at least 350 cells per cubic millimeter to zidovudine and single-dose nevirapine plus a 1-to-2-week postpartum “tail” of tenofovir and emtricitabine (zidovudine alone); zidovudine, lamivudine, and lopinavir–ritonavir (zidovudine-based ART); or tenofovir, emtricitabine, and lopinavir–ritonavir (tenofovir-based ART). The primary outcomes were HIV transmission at 1 week of age in the infant and maternal and infant safety.ResultsThe median CD4 count was 530 cells per cubic millimeter among 3490 primarily black African HIV-infected women enrolled at a median of 26 weeks of gestation (interquartile range, 21 to 30). The rate of transmission was significantly lower with ART than with zidovudine alone (0.5% in the combined ART groups vs. 1.8%; difference, −1.3 percentage points; repeated confidence interval, −2.1 to −0.4). However, the rate of maternal grade 2 to 4 adverse events was significantly higher with zidovudine-based ART than with zidovudine alone (21.1% vs. 17.3%, P=0.008), and the rate of grade 2 to 4 abnormal blood chemical values was higher with tenofovir-based ART than with zidovudine alone (2.9% vs. 0.8%, P=0.03). Adverse events did not differ significantly between the ART groups (P>0.99). A birth weight of less than 2500 g was more frequent with zidovudine-based ART than with zidovudine alone (23.0% vs. 12.0%, P<0.001) and was more frequent with tenofovir-based ART than with zidovudine alone (16.9% vs. 8.9%, P=0.004); preterm delivery before 37 weeks was more frequent with zidovudine-based ART than with zidovudine alone (20.5% vs. 13.1%, P<0.001). Tenofovir-based ART was associated with higher rates than zidovudine-based ART of very preterm delivery before 34 weeks (6.0% vs. 2.6%, P=0.04) and early infant death (4.4% vs. 0.6%, P=0.001), but there were no significant differences between tenofovir-based ART and zidovudine alone (P=0.10 and P=0.43). The rate of HIV-free survival was highest among infants whose mothers received zidovudine-based ART.ConclusionsAntenatal ART resulted in significantly lower rates of early HIV transmission than zidovudine alone but a higher risk of adverse maternal and neonatal outcomes. (Funded by the National Institutes of Health; PROMISE ClinicalTrials.gov numbers, NCT01061151 and NCT01253538.)

English

Human immunodeficiency virus/Acquired immune deficiency syndrome (HIV/AIDS) infection in children under 15 years is mostly due to mother to child transmission. The purpose of this study was to assess the outcome of infants born to HIV-positive women through the prevention of mother to child transmission (PMTCT) aspects at Sylvanus Olympio’s Teaching Hospital of Lome. This retrospective study of 24 months (from September 1, 2008 to September 1, 2010) was performed in 232 recorded files of infants delivered in the centre and monitored in the pediatrics department. From 230 women who had given birth to 232 infants, 224 (97.4%) knew their positive HIV status before delivery and 6 (2.6%) tested positive after child birth. Low birth weight was observed in 21.5% of newborns and 12.3% were born preterm. Two hundred seven (55.0%) infants were exclusively breastfed, with abrupt weaning at 4 months in 40.2% (39). Polymerase chain reaction (PCR) test was performed at 17 and 19 weeks in the 232 infants and 13 positive cases were found (5.6% transmission rate). An assessment of the centre in 2010 identified a mother-child transmission rate of HIV that was still high. There was need to strengthen screening strategies, counselling during antenatal care, and access to ART for all pregnant women. Key words: Prevention of mother to child transmission (PMTCT), human immunodeficiency virus (HIV) pregnant women, antiretroviral treatment, Togo, West Africa.

Risk Factors for HIV Diagnosis Among Men Who Have Sex with Men: Results of a Case-Control Study in One Sample of Eastern China.

Substantial increases in human immunodeficiency virus (HIV) have been reported worldwide in recent years, particularly among men who have sex with men (MSM). We conducted a matched case-control study to examine the factors associated with HIV diagnosis among MSM in one sample of eastern China. Between February 2012 and December 2014, we used surveillance records to identify MSM diagnosed with HIV (case participants); we also recruited MSM who did not have HIV (controls) and then matched them (2:1) with control cases in terms of age (±3 years). Multivariate logistic regression models were used to assess the factors associated with HIV diagnosis. According to a multivariate analysis using logistic regression model involving 101 cases and 202 matched controls, a lack of comprehensive knowledge of HIV (adjusted odds ratio [OR] = 0.40; 95% confidence interval [CI] = 0.18, 0.89), a monthly income of ≥4,000 RMB (adjusted OR = 2.99; 95% CI = 1.45, 6.16), having at least two male sexual partners in the past 6 months (adjusted OR = 2.85; 95% CI = 1.28, 6.31), participating in at least four anal sex experiences with a man in the past month (adjusted OR = 3.56; 95% CI = 1.64, 7.73), and having a current syphilis infection (adjusted OR = 3.30; 95% CI = 1.06, 10.25) were associated with an increased risk for HIV diagnosis. MSM with a comprehensive knowledge of HIV were at reduced risk of HIV diagnosis, whereas those with more male sexual partners, more male anal sexual experiences (including receptive or/and insertive anal intercourse, rimming, and fisting), and a current syphilis infection were at increased risk of HIV diagnosis. Focus on protection and safer sex behaviors during male sexual activity (i.e., consistent condom use, pre-exposure prophylaxis, closed sexual networks among MSM) would likely be effective for reducing the HIV transmission rate.

Mechanisms of HIV Transcriptional Regulation by Drugs of Abuse.

There is a strong correlation between the use and abuse of illicit drugs and the spread of Human Immunodeficiency Virus (HIV). It is well established that illicit drugs users are a high risk population for infection with HIV with an increased rate of HIV transmission and replication. Cocaine, amphetamine, methamphetamine, heroin and morphine stand out as the most frequently abused illicit drugs and their use correlates well with HIV infection and AIDS progression. Notably, the high incidence of HIV infection in illicit drug abusers is primarily due to high risk activities such as needle sharing and unprotected sex. Several studies have also demonstrated that drugs of abuse increase viral RNA concentrations by enhancing HIV replication, in particular in the central nervous system (CNS). The CNS is a common target for both drugs of abuse and HIV, and their synergistic action accelerates neuronal injury and cognitive impairment. In order to generate complete genomic transcripts, HIV gene expression has to progress through both the initiation and elongation phases of transcription, which requires coordinated action of different transcription factors. In this review, we will provide the latest updates of the molecular mechanisms that regulate HIV transcription and discuss how drugs of abuse, such as cocaine, amphetamine, methamphetamine, heroin and morphine, modulate those mechanisms to upregulate HIV transcription and eventually HIV replication.