Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 30
Filtrar
1.
Afr J AIDS Res ; 22(2): 71-84, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37337818

RESUMEN

Adolescent girls and young women (AGYW) in sub-Saharan Africa experience delayed linkage to and poor retention in HIV care. Identifying and addressing specific barriers in HIV care programming is important to achieving the upgraded UNAIDS 95-95-95 targets and epidemic control. We examined these challenges among 103 HIV-positive AGYW in and out of HIV care in communities around Lake Victoria in western Kenya as part of a larger qualitative study to identify drivers of HIV testing and HIV care utilisation in key populations. We used the social-ecological model to guide development of interview guides. Individual-level barriers included denial and forgetfulness and gendered household responsibilities, medication side effects, especially if taken without food, pills being too big and difficult to swallow and the burden of a daily medication-taking regimen. Interpersonal barriers included troubled family relationships and pervasive fears of stigma and discrimination by friends and family. Communitylevel barriers were stigmatising attitudes toward people living with HIV. Health-system barriers included negative provider attitudes and confidentiality breaches. At the structural level, participants noted high costs due to long travel times to facilities, long clinic waiting times, household food insecurity and school and work commitments. AGYW's limited decision-making autonomy due to age and gender norms, including their reliance on the authority of older adults, makes these barriers especially troubling. Innovative treatment approaches that take into account the unique vulnerabilities of AGYW are urgently needed.


Asunto(s)
Infecciones por VIH , Humanos , Femenino , Adolescente , Anciano , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Kenia/epidemiología , Investigación Cualitativa , Identidad de Género
2.
Fertil Steril ; 120(4): 844-849, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-37225071

RESUMEN

OBJECTIVE: To evaluate if language preference influences intrauterine insemination outcomes. DESIGN: Retrospective cohort. SETTING: The study was conducted at an urban medical center in New York from January 2016 to August 2021. PATIENT(S): All women older than 18 years undergoing their first IUI cycle with an infertility diagnosis were included. INTERVENTION(S): Intrauterine insemination after ovarian stimulation. MAIN OUTCOME MEASURE(S): Primary outcomes were intrauterine insemination success rate and duration of infertility before seeking infertility care. The primary outcomes used the Kaplan-Meier estimator to investigate the difference in duration of infertility before specialty consultation and logistic regression to estimate odds ratios (OR) and 95% confidence intervals (CI) of clinical pregnancy among English speakers vs. those with limited English proficiency (LEP) undergoing initial IUI. Secondary outcomes included final IUI outcomes compared by language preference. Adjusted analyses controlled for race/ethnicity. RESULTS: A total of 406 patients were included in this study, of which 86% preferred English, 7.6% preferred Spanish, and 5.2% preferred other. Patients with LEP have longer duration of infertility before seeking infertility care than English-proficient women (mean 4.53 ± 3.65 years vs. 2.01 ± 1.58 years). Although clinical pregnancy rate of initial IUI did not significantly vary (OR, 2.92; 95% CI, 0.68-12.47 unadjusted and OR, 2.88; 95% CI, 0.67-12.35 adjusted), the cumulative pregnancy rate was significantly higher in English-proficient patients than in LEP patients at the time of final IUI (22.32% vs. 15.38%). This is despite a similar number of total IUIs (2.40 English vs. 2.70 LEP). Additionally, LEP patients were significantly more likely to discontinue care after unsuccessful IUI, instead of proceeding to further fertility treatments such as in vitro fertilization. CONCLUSIONS: Limited English proficiency is associated with longer duration of infertility before initiating care as well as poorer IUI outcomes, including lower cumulative pregnancy rate. Further research is needed to assess what clinical and socioeconomic factors are contributing to lower IUI success rates and lower continuation in infertility care in LEP patients.


Asunto(s)
Infertilidad , Dominio Limitado del Inglés , Embarazo , Humanos , Femenino , Estudios Retrospectivos , Inseminación Artificial , Fertilización In Vitro , Infertilidad/diagnóstico , Infertilidad/terapia , Índice de Embarazo , Inducción de la Ovulación , Inseminación
3.
AIDS Behav ; 27(10): 3197-3205, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37084103

RESUMEN

Identifying factors associated with durable viral suppression (DVS) can inform interventions to support young adults living with HIV (YALWH) in sustaining optimal health. We examined associations between client characteristics and DVS among YALWH aged 18-29 who completed an intake assessment and received ≥ 1 Ryan White Part A service in New York City from 1/2017 to 12/2019. Individuals were classified as achieving DVS at least once if they had ≥ 2 suppressed viral load test results ≥ 90 days apart with: (a) no intervening unsuppressed viral load test results in a 12-month period; and (b) no unsuppressed viral load test results after achieving DVS in that 12-month period. Of 2208 YALWH, 92.1% (n = 2034) had sufficient data in the New York City HIV Surveillance Registry to ascertain DVS status. Of these, 68% achieved DVS at least once. Controlling for ART prescription status at intake, YALWH with higher incomes were significantly more likely to achieve DVS at least once. YALWH with lifetime and recent histories of incarceration and/or drug use were significantly less likely to achieve DVS. Our findings underscore the potential role of tailored harm reduction and post-incarceration programs in reducing health inequities among YALWH.


Asunto(s)
Infecciones por VIH , Humanos , Adulto Joven , Reducción del Daño , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Renta , Ciudad de Nueva York/epidemiología
4.
AIDS Behav ; 27(10): 3478-3486, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37043053

RESUMEN

Tenofovir diphosphate (TFV-DP) concentrations in dried blood spots (DBS) predict viral breakthrough, but their use remains understudied in real-world clinic settings. This pilot study examined acceptability, feasibility, and initial adherence outcomes of providing adherence feedback using TFV-DP concentrations on patient- and provider-levels in Cape Town, South Africa. We enrolled 60 persons with HIV (PWH) receiving tenofovir-containing ART attending a primary health clinic. They were randomized 1:1 to an intervention receiving TFV-DP concentration feedback by research staff vs. no feedback at monthly visits for 4 months. Acceptability among medical providers and level of clinical follow-up of TFV-DP results was examined. Patient acceptability was assessed descriptively. Mean electronic adherence (EA), as measured by WisePill device, and TFV-DP in DBS were compared between the two arms. All participants in the intervention group (100%) reported finding TFV-DP feedback helpful and 86% reported changing adherence behaviors. Medical providers indicated high acceptability of incorporating TFV-DP concentration feedback into the clinic, yet among 29 results < 1000 fmol/punch, only 2 were reviewed with no follow-up actions performed. In the intervention arm, mean TFV-DP concentrations were significantly higher (t = 2.5, p < .01) during follow-up and EA in upper quartile (96-100%) was greater compared to controls (x2 = 7.8, p ≤ .05). This study found high acceptability among patients for receiving adherence feedback based on TFV-DP concentrations. TFV-DP and EA data demonstrated greater adherence in the intervention group. Providers indicated high acceptability of incorporating TFV-DP feedback into the clinic, but few providers reviewed results, which could impact clinic-level feasibility.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Humanos , Fármacos Anti-VIH/uso terapéutico , Estudios de Factibilidad , Infecciones por VIH/tratamiento farmacológico , Proyectos Piloto , Sudáfrica/epidemiología
5.
J Acquir Immune Defic Syndr ; 93(4): 327-332, 2023 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-36976520

RESUMEN

BACKGROUND: Electronic adherence (EA) and tenofovir diphosphate (TFV-DP) in dried blood spots (DBS) are objective measures of antiretroviral therapy (ART) adherence. We characterized the association between these measures in a prospective cohort of persons with HIV (PWH) on ART. SETTING: Four primary health clinics in Cape Town, South Africa. METHODS: We enrolled 250 virally suppressed PWH receiving tenofovir-based ART. We collected EA data, monthly viral load, and TFV-DP in DBS for 12 months. We used logistic regression to estimate the adjusted odds ratio (aOR) and 95% confidence intervals (CIs) for future viral breakthrough (VB) (>400 copies/mL) for each adherence measure. Receiver operating characteristics (ROCs) provided the predictive power of these measures. RESULTS: Participants had a median (IQR) age of 34 (27-42); 78% were women. Twenty-one (8%) developed VB. Logistic regression showed that when percent EA and TFV-DP concentrations increased, the odds of VB decreased. This relationship was consistent at the time of VB (aOR of 0.41 [95% CI: 0.25 to 0.66] for TFV-DP and aOR of 0.64 [95% CI: 0.54 to 0.76] for EA) and for up to 2 months before VB. Both adherence measures predicted future VB at both 1 month and 2 months before viral load measurement. CONCLUSION: We established that 2 objective adherence measures, EA and TFV-DP in DBS, have a positive association with, and are both strongly predictive of, VB in a community-based South African cohort on ART. Future research is needed to determine the feasibility of implementing these adherence measures in resource-limited settings to facilitate adherence interventions.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Humanos , Femenino , Masculino , Infecciones por VIH/tratamiento farmacológico , Sudáfrica , Fármacos Anti-VIH/uso terapéutico , Estudios Prospectivos , Antirretrovirales/uso terapéutico , Cumplimiento de la Medicación
6.
AIDS Care ; 35(12): 1948-1954, 2023 12.
Artículo en Inglés | MEDLINE | ID: mdl-36892951

RESUMEN

Hope for the future has been found protective against suicidal ideation (SI) in adolescents and young adults (AYA) yet has not been examined in AYA with perinatal HIV-infection (PHIV) or AYA who were perinatally HIV-exposed but uninfected (PHEU), who are at higher risk for SI than general populations. Using data from a New York City-based longitudinal study of AYAPHIV and AYAPHEU enrolled when 9-16 years old, we examined associations between hope for the future, psychiatric disorders, and SI over time using validated measures. Generalized estimating equations were used to estimate differences in mean hope for the future scores by PHIV-status and to estimate adjusted odds ratios for associations between hope for the future and SI. AYA reported high hope for the future scores and low SI across visits, irrespective of PHIV-status. Higher hope for the future scores were associated with lower odds of SI (AOR = 0.48, 95% CI: 0.23, 0.996). Mood disorder was associated with increased odds of SI (AOR = 13.57, 95% CI: 5.11, 36.05) in a model including age, sex, follow-up, PHIV-status, mood disorder, and hope for the future. Understanding how hope can be cultivated and how it protects against SI can help to inform preventive interventions for HIV-affected AYA.


Asunto(s)
Infecciones por VIH , Embarazo , Femenino , Humanos , Adolescente , Adulto Joven , Niño , Infecciones por VIH/psicología , Ideación Suicida , Estudios Longitudinales , Trastornos del Humor , Prueba de VIH , Transmisión Vertical de Enfermedad Infecciosa/prevención & control
7.
AIDS Behav ; 27(9): 2979-2987, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-36807245

RESUMEN

Given poor adherence to treatment and prevention techniques, condomless sex jeopardizes adolescents and young adults (AYA) with perinatally-acquired HIV-infection (PHIV) or perinatal HIV-exposure who are uninfected (PHEU). We examined condomless sex and its association with PHIV-status, psychiatric disorder, and sociodemographics. Data come from a US-based study of primarily Black and Latinx AYAPHIV and AYAPHEU (N = 340). Linear regression models examined condomless sex longitudinally by PHIV-status, psychiatric trajectories, and sociodemographics. Rates of viremia (AYAPHIV) and PrEP use (AYAPHEU) were assessed. 56% of participants reported recent condomless sex, with higher prevalence among: AYAPHEU vs. AYAPHIV (24% vs. 19%, p = 0.017); Latinx vs. non-Latinx AYA (25% vs. 17%, p = 0.014); and AYA with increasing psychiatric comorbidity (44%) and consistent anxiety (23%) vs. low-level disorder (17%; p < 0.05). AYAPHIV had high rates of unsuppressed viral load and AYAPHEU limited PrEP use. Preventing condomless sex is challenging within AYAPHIV and AYAPHEU. Developing accessible combination HIV/mental health interventions is much-needed.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Profilaxis Pre-Exposición , Femenino , Embarazo , Adolescente , Adulto Joven , Humanos , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Infecciones por VIH/tratamiento farmacológico , Sexo Inseguro , Trastornos de Ansiedad , Fármacos Anti-VIH/uso terapéutico
8.
AIDS Care ; 35(2): 182-190, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-35277102

RESUMEN

Little is known about the mental health needs of adolescents living with HIV (ALWH) in Mozambique, including the potential relationship between mental health challenges and poor antiretroviral treatment (ART) adherence. We examined mental health problems (anxiety, depression, post-traumatic stress disorder [PTSD] symptoms and impairment) and their association with self-reported ART adherence among ALWH ages 15-19 in Nampula, Mozambique. The associations between each mental health problem area and sub-optimal adherence were estimated using logistic regression, controlling for age, education, and social support, with interaction by gender. Males had significantly higher anxiety (5.6 vs 4.3, p = 0.01), depression (5.8 vs 4.1, p = 0.005), and PTSD (13.3 vs 9.8, p = 0.02) symptoms and impairment (1.8 vs 0.56, p<0.0001) scores than females. Proportion reporting sub-optimal adherence (65%) did not differ by gender. Higher anxiety, depression, and PTSD symptom and impairment scores were significantly associated with higher odds of sub-optimal ART adherence in males but not females. Among Mozambican ALWH, mental health problems were prevalent and two-thirds had ART adherence less than 90%. Worse mental health was associated with increased odds of sub-optimal ART adherence in males but not females. Interventions are needed to address mental health problems and improve ART adherence in Mozambican ALWH, particularly among males.


Asunto(s)
Infecciones por VIH , Salud Mental , Masculino , Humanos , Adolescente , Adulto Joven , Adulto , Mozambique/epidemiología , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Infecciones por VIH/psicología , Antirretrovirales/uso terapéutico , Encuestas y Cuestionarios , Cumplimiento de la Medicación/psicología
9.
AIDS Behav ; 27(1): 4-9, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-36056997

RESUMEN

The long-acting feature of cabotegravir, an integrase-inhibitor highly effective in preventing acquisition of HIV in adolescents and adults, is both its greatest strength and a challenge to its implementation. Cab-LA is administered at 8-week intervals (after an initial loading dose) but has a long, variable drug "tail" that may leave users vulnerable to future drug resistance if they contract HIV during this critical period. The potential for cab-LA to meaningfully contribute to ending the HIV Epidemic is hindered by, among other factors, limited resources to guide patients and providers on how to safely discontinue injections. We suggest three key strategies to overcome this specific challenge: (1) Comprehensive patient education and counseling about the drug tail; (2) Training and coaching PrEP care teams, including clinical and non-clinical staff, on communication around the tail; (3) Adherence support strategies, including monitoring of cabotegravir drug levels after discontinuation, for a personalized medicine approach to safe discontinuation.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Inhibidores de Integrasa VIH , Profilaxis Pre-Exposición , Adulto , Adolescente , Humanos , Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control
10.
J Int AIDS Soc ; 25 Suppl 4: e25984, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-36176026

RESUMEN

INTRODUCTION: As children become adolescents and young adults (AYA), their risk for attempting suicide increases dramatically, with chronic health conditions an important risk factor. This study examined correlates of suicidality across development in AYA living with perinatally acquired HIV (AYALPHIV) and those perinatally HIV-exposed but uninfected (AYAPHEU). METHODS: Data come from an ongoing longitudinal New York City-based study (N = 339) with AYALPHIV and AYAPHEU interviewed every 12-18 months from 2003 to 2019 (mean enrolment age = 12 years; current mean age = 27 years). The Diagnostic Interview Schedule for Children (adolescent or young adult version) assessed psychiatric disorders and first-reported suicide attempt. Generalized estimating equations were used to examine associations between first-reported suicide attempt and socio-demographic, contextual and psychosocial correlates measured concurrently across six timepoints. RESULTS: At enrolment, 51% of participants were female, 72% heterosexual, 60% Black and 50% Latinx. Attempted suicide was significantly higher among AYALPHIV (27%, CI 21-33%) compared to AYAPHEU (16%, CI 10-22%), with an OR of 1.74 (CI 1.04-2.92) in a model adjusting for age. For AYALPHIV, anxiety (OR 2.66, CI 1.46-4.85), mood (OR 3.62, CI 1.49-8.81) and behaviour disorders (OR 5.05, CI 2.15-11.87) and past-year arrest (OR 3.05, CI 1.26-7.4), negative life events (OR 1.27, CI 1.11-1.46), city stress (OR 2.28, CI 1.46-3.57), pregnancy (OR 2.28, CI 1.08-4.81) and HIV stigma (OR 2.46, CI 1.27-4.75) were associated with increased odds of attempted suicide, while identifying as heterosexual (OR 0.27, CI 0.14-0.52), higher personal (OR 0.45, CI 0.26-0.80) and family self-concept (OR 0.36, CI 0.22-0.57) were protective. Interactions by HIV status and age were found: substance use was more strongly associated with attempted suicide among AYAPHEU than AYALPHIV, while negative life events and higher religiosity were more strongly associated with increased odds of attempted suicide among AYA ≥ 19 versus ≤ 18 years. CONCLUSIONS: AYALPHIV compared to AYAPHEU faced unique risks for attempted suicide as they age into adulthood, with the highest risk among AYALPHIV experiencing HIV stigma or pregnancy and the highest risk among AYAPHEU with substance use. Assessing for suicide risk and correlates with attention to ageing can inform preventive interventions tailored to meet AYALPHIV and AYAPHEU needs.


Asunto(s)
Infecciones por VIH , Trastornos Relacionados con Sustancias , Adolescente , Adulto , Niño , Demografía , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/epidemiología , Infecciones por VIH/psicología , Humanos , Masculino , Ciudad de Nueva York/epidemiología , Factores de Riesgo , Trastornos Relacionados con Sustancias/complicaciones , Intento de Suicidio/prevención & control , Intento de Suicidio/psicología , Adulto Joven
11.
PLoS One ; 17(8): e0267766, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35939422

RESUMEN

BACKGROUND: Widespread use of at-home rapid COVID-19 antigen tests has been proposed as an important public health intervention to interrupt chains of transmission. Antigen tests may be preferred over PCR because they provide on-demand results for relatively low cost and can identify people when they are most likely to be infectious, particularly when used daily. Yet the extent to which a frequent antigen testing intervention will result in a positive public health impact for COVID-19 will depend on high acceptability and high adherence to such regimens. METHODS: We conducted a mixed-methods study assessing acceptability of and adherence to a daily at-home mobile-app connected rapid antigen testing regimen among employees of a US-based media company. Acceptability was assessed across seven domains of the Theoretical Framework of Acceptability. RESULTS: Among 31 study participants, acceptability of the daily testing intervention was generally high, with participants reporting high perceived effectiveness, intervention coherence, and self-efficacy; positive affective attitude; acceptable degree of burden and opportunity cost; and assessing the intervention as ethical. 71% reported a preference to test daily using an at-home antigen test than weekly employment-based PCR. Mean adherence to the 21-day testing regimen was 88% with 43% of participants achieving 100% adherence, 48% testing at least every other day, and 10% testing less than every other day. CONCLUSIONS: Despite overall high acceptability and adherence, we identified three implementation challenges that must be addressed for frequent serial testing for COVID-19 to be implemented at scale and have a positive public health impact. First, users need guidance on how and when to adapt testing frequencies to different epidemiological conditions. Second, users and institutions need guidelines for how to safely store and share test results. Third, implementation of serial testing strategies must prioritize health equity and protect those most vulnerable to COVID-19.


Asunto(s)
COVID-19 , Aplicaciones Móviles , COVID-19/diagnóstico , COVID-19/epidemiología , Prueba de COVID-19 , Atención a la Salud , Humanos , Pandemias
12.
Nature ; 608(7923): 603-608, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35790190

RESUMEN

SARS-CoV-2 Omicron subvariants BA.2.12.1 and BA.4/5 have surged notably to become dominant in the United States and South Africa, respectively1,2. These new subvariants carrying further mutations in their spike proteins raise concerns that they may further evade neutralizing antibodies, thereby further compromising the efficacy of COVID-19 vaccines and therapeutic monoclonals. We now report findings from a systematic antigenic analysis of these surging Omicron subvariants. BA.2.12.1 is only modestly (1.8-fold) more resistant to sera from vaccinated and boosted individuals than BA.2. However, BA.4/5 is substantially (4.2-fold) more resistant and thus more likely to lead to vaccine breakthrough infections. Mutation at spike residue L452 found in both BA.2.12.1 and BA.4/5 facilitates escape from some antibodies directed to the so-called class 2 and 3 regions of the receptor-binding domain3. The F486V mutation found in BA.4/5 facilitates escape from certain class 1 and 2 antibodies but compromises the spike affinity for the viral receptor. The R493Q reversion mutation, however, restores receptor affinity and consequently the fitness of BA.4/5. Among therapeutic antibodies authorized for clinical use, only bebtelovimab retains full potency against both BA.2.12.1 and BA.4/5. The Omicron lineage of SARS-CoV-2 continues to evolve, successively yielding subvariants that are not only more transmissible but also more evasive to antibodies.


Asunto(s)
Anticuerpos Antivirales , Deriva y Cambio Antigénico , COVID-19 , Mutación , SARS-CoV-2 , Anticuerpos Neutralizantes/inmunología , Anticuerpos Neutralizantes/uso terapéutico , Anticuerpos Antivirales/inmunología , Anticuerpos Antivirales/uso terapéutico , Deriva y Cambio Antigénico/genética , Deriva y Cambio Antigénico/inmunología , COVID-19/inmunología , COVID-19/virología , Vacunas contra la COVID-19/inmunología , Humanos , Inmunización Secundaria , Receptores Virales/metabolismo , SARS-CoV-2/clasificación , SARS-CoV-2/genética , SARS-CoV-2/inmunología , Glicoproteína de la Espiga del Coronavirus/genética , Glicoproteína de la Espiga del Coronavirus/inmunología , Glicoproteína de la Espiga del Coronavirus/metabolismo
13.
J Clin Virol Plus ; 2(3): 100080, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35528048

RESUMEN

Background: SARS-CoV-2 antigen-based tests are well-calibrated to infectiousness and have a critical role to play in the COVID-19 public health response. We report the development and performance of a unique lateral flow immunoassay (LFA). Methods: Combinations of several monoclonal antibodies targeting multiple antigenic sites on the SARS-CoV-2 nucleocapsid protein (NP) were isolated, evaluated, and chosen for the development of a LFA termed CoV-SCAN (BioMedomics, Inc.). Clinical point-of-care studies in symptomatic and asymptomatic individuals were conducted to evaluate positive predictive agreement (PPA) and negative predictive agreement (NPA) with RT-PCR as comparator. Results: In laboratory testing, CoV-SCAN detected 14 recombinant N-proteins of SARS-CoV-2 variants with sensitivity in the range of 0.2-3.2 ng/mL, and 10 authentic SARS-CoV-2 variants with sensitivity in the range of 1.6-12.5 TCID50/swab. No cross reactivity was observed with other human coronaviruses or other respiratory pathogens. In clinical point-of-care testing on 148 individuals over age 2 with symptoms of ≤5 days, PPA was 87.2% (CI 95: 78.3-94.8%) and NPA was 100% (CI 95: 94.2-100%). In another 884 asymptomatic individuals, PPA was 85.7% (CI 95: 42.1-99.6%) and 99.7% (99.0-99.9%). Overall, CoV-SCAN detected over 97.2% of specimens with CT values <30 and 93.8% of nasal swab specimens with the Omicron variant, even within the first 2 days after symptom onset. Conclusions: The unique construction of CoV-SCAN using two pairs of monoclonal antibodies has resulted in a test with high performance that remains durable across multiple variants in both laboratory and clinical evaluations. CoV-SCAN should identify almost all individuals harboring infectious SARS-CoV-2. Summary: Unique construction of a point-of-care rapid antigen test using two pairs of monoclonal antibodies has led to good performance that remained durable across multiple variants in laboratory and clinical evaluations. Test should identify almost all individuals harboring infectious SARS-CoV-2.

14.
J Acquir Immune Defic Syndr ; 90(2): 124-131, 2022 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-35125472

RESUMEN

BACKGROUND: Sexual partner characteristics are important determinants of HIV acquisition, but little is known about partner types of young men in sub-Saharan Africa. METHODS: Sexually active men aged 15-24 years from 5 rounds (2005-2013) of the Rakai Community Cohort Study in Uganda reported characteristics of up to 4 past-year female partners. Partner types were identified using latent class analysis. HIV incidence rates (IRs) were calculated by partner-type combinations, and individual-level risk adjusted IR ratios (aIRRs) relative to the lowest incidence type were estimated using the Poisson regression with generalized estimating equations. RESULTS: Young men (N = 1771) reported 4539 past-year female sexual partners. Three partner types were identified: type A: noncohabiting, student, medium duration partnerships; type B: cohabiting, nonstudent, longer duration partnerships; and type C: noncohabiting, nonstudent shorter duration partnerships. Type C partners engaged in the most HIV-related risk behaviors. Many men (29%) had more than 1 partner type/round. IR overall was 9.8/1000 person-years [95% confidence interval (CI): 4.7 to 20.6]. IR was 4.0 (95% CI: 1.2 to 12.7) for men with type A partners alone (41% of men). Relative to them, IR for those with type B partners alone (25%) was not significantly different. Men with type C partners alone (5%) had higher risk (aIRR = 3.2; 95% CI: 1.0 to 9.9), as did men with >1 partner type, including men with both type A and type B partners (12%; aIRR = 6.3; 95% CI: 2.5 to 15.9) and men with type C and other partner types (17%; aIRR = 4.3; 95% CI: 1.7 to 10.8). CONCLUSIONS: Partner-type combination was strongly associated with HIV incidence; type C partners and having more than 1 partner type were the riskiest patterns.


Asunto(s)
Infecciones por VIH , Parejas Sexuales , Estudios de Cohortes , Femenino , Infecciones por VIH/epidemiología , Humanos , Análisis de Clases Latentes , Masculino , Conducta Sexual , Uganda/epidemiología
15.
AIDS ; 36(7): 933-940, 2022 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-35131960

RESUMEN

OBJECTIVES: Tenofovir diphosphate (TFV-DP) in dried blood spots (DBS) is used as a biomarker of antiretroviral therapy (ART) adherence. Recent treatment studies have shown that TFV-DP predicts future viremia in persons with HIV (PWH) but there are few data from high-burden settings. We investigated whether TFV-DP in DBS predicts future viral breakthrough in South African PWH. DESIGN: Prospective observational cohort. METHODS: We enrolled 250 adults receiving tenofovir-containing regimens, currently virally suppressed (<50 copies/ml) but at risk of future viral breakthrough, from four primary health clinics in Cape Town. Paired viral load and DBS for TFV-DP were collected monthly for 12 months. Viral breakthrough was the first confirmed viral load greater than 400 copies/ml. Logistic regression estimated the odds ratio (OR) and 95% confidence intervals for future viral breakthrough at the next visit. RESULTS: Participants provided 2944 paired DBS and viral load samples. Median (IQR) age was 34 (27-42) years; median duration on ART at study entry was 11 (4-12) months;78% were women. Twenty-one (8%) participants developed viral breakthrough. Participants with TFV-DP 400 fmol/punch or less had an adjusted OR of 16.1 (95% CI: 3.9-67.4; P < 0.001) for developing viral breakthrough 1 month later compared with participants with TFV-DP greater 800 fmol/punch. CONCLUSION: TFV-DP in DBS strongly predicted future viral breakthrough in a clinical cohort of South African PWH. A biomarker able to identify PWH at risk for future viral breakthrough has the potential to improve health outcomes through timely intervention. Future studies exploring the clinical use of TFV-DP in DBS in conjunction with viral load in ART monitoring are warranted.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Adenina/análogos & derivados , Adulto , Fármacos Anti-VIH/uso terapéutico , Biomarcadores , Femenino , Infecciones por VIH/tratamiento farmacológico , Humanos , Masculino , Cumplimiento de la Medicación , Organofosfatos , Sudáfrica , Viremia/tratamiento farmacológico
16.
J Acquir Immune Defic Syndr ; 88(4): 348-355, 2021 12 01.
Artículo en Inglés | MEDLINE | ID: mdl-34406984

RESUMEN

BACKGROUND: Suicide is a leading cause of death among adolescents and young adults (AYA). AYA living with perinatally acquired HIV infection (AYALPHIV) are at higher risk of attempted suicide when compared with AYA who were perinatally HIV-exposed but uninfected (AYAPHEU). To inform interventions, we identified risk and protective factors of attempted suicide among AYALPHIV and AYAPHEU. SETTING: Data were obtained from a longitudinal New York City-based study of AYALPHIV and AYAPHEU (n = 339; enrollment age 9-16 years) interviewed approximately every 12-18 months. METHOD: Our main outcome was suicide attempt at any follow-up. The DISC was used to assess psychiatric disorder diagnoses and attempted suicide and the Child Depression Inventory to assess depressive symptoms. Psychosocial and sociodemographic risk factors were also measured. Analyses used backward stepwise logistic regression modeling. RESULTS: At enrollment, 51% was female individuals, 49% Black, 40% Latinx, and 11% both Black and Latinx. Attempted suicide prevalence was significantly higher among AYALPHIV compared with AYAPHEU (27% vs 16%, P = 0.019), with AYALPHIV having 2.21 times the odds of making an attempt [95% confidence interval: (1.18 to 4.12), P = 0.013]. Higher Child Depression Inventory scores were associated with an increased risk of attempted suicide in both groups and the total sample. The presence of DISC-defined behavior disorder increased the risk of attempted suicide in the total sample and the AYALPHIV subgroup. Religiosity was protective of attempted suicide in AYALPHIV. CONCLUSIONS: AYALPHIV had increased suicide attempts compared with AYAPHEU. Religiosity was protective in AYALPHIV. Highlighting a need for prevention of early mental health challenges was associated with risk.


Asunto(s)
Infecciones por VIH/complicaciones , Infecciones por VIH/psicología , Trastornos Mentales/epidemiología , Estigma Social , Intento de Suicidio , Suicidio/psicología , Adolescente , Fármacos Anti-VIH/uso terapéutico , Niño , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Humanos , Transmisión Vertical de Enfermedad Infecciosa , Estudios Longitudinales , Cumplimiento de la Medicación , Trastornos Mentales/psicología , Salud Mental , Ciudad de Nueva York/epidemiología , Embarazo , Factores de Riesgo
17.
AIDS Care ; 33(11): 1394-1403, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-32698680

RESUMEN

First-time antiretroviral therapy (ART) initiators may be more vulnerable to poor ART adherence because they may be coping with a new HIV diagnosis, facing logistical challenges to accessing and adhering to ART for the first time, and have not yet developed support networks or the skills to support long-term adherence. We recruited 324 participants in two HIV clinics near Cape Town, South Africa. Sociodemographic/psychosocial factors were measured at baseline and self-reported adherence at the 6 month follow-up. We conducted multivariable regression to determine which baseline factors were associated with 6-month adherence. A better patient-clinic relationship score (OR: 1.08 [95% CI: 1.05-1.11]) was associated with higher adherence. A drug use problem (0.51 [0.29-0.87]), higher social isolation (0.93 [0.87-0.99]), and greater number of years living with HIV before initiating ART (0.92 [0.86-1.00]) were associated with adherence levels below 90%. Patient-clinic relationships and social support are key psycho-social factors in early adherence behavior. Reducing drug use problems through targeted screening and early intervention may improve ART adherence.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Fármacos Anti-VIH/uso terapéutico , Antirretrovirales/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Humanos , Cumplimiento de la Medicación , Sudáfrica/epidemiología
18.
AIDS ; 34(8): 1205-1215, 2020 07 01.
Artículo en Inglés | MEDLINE | ID: mdl-32287067

RESUMEN

OBJECTIVE: Identify factors associated with trajectories of psychiatric disorder among 340 adolescents and young adults (AYA) living with perinatal HIV infection (PHIV) and perinatal HIV-exposure but not infection (PHEU). DESIGN: Longitudinal cohort study of AYA in New York City, 9-16 years at enrollment. METHODS: We used multivariate longitudinal latent class analysis to identify trajectories of psychiatric disorder, and logistic regression to examine predictors of trajectories (e.g. PHIV status) and associations between trajectories and viremia in young adulthood (AYA with PHIV only). RESULTS: Among all AYA, we identified three psychiatric trajectories: relatively 'low disorder' (63%), 'consistent anxiety' (26%), and 'escalating comorbidity' (11%). Compared with AYA with 'low disorder', AYA with 'escalating comorbidity' were significantly older, reported more neighborhood stress, and lived with a caregiver with alcohol use disorder, whereas AYA with 'consistent anxiety' were more likely female individuals. Although we found no statistically significant HIV status differences, among AYA with PHIV, nearly half (48%) were viremic in young adulthood, with higher odds of viremia among AYA with 'escalating comorbidity' (OR: 3.88, 95% CI: 0.93-16.26) and 'consistent anxiety' (OR: 2.41, 95% CI: 1.011-5.75) compared with 'low disorder'. CONCLUSION: Despite significant adversity, AYA with PHIV and PHEU had relatively low prevalence of psychiatric disorder over time, although one-third had consistent or escalating psychiatric disorders. Among AYA with PHIV, psychiatric trajectories were associated with viremia in young adulthood. Given the growing population of AYA living with PHIV and PHEU worldwide, addressing the substantial and evolving mental health needs of both groups as they reach young adulthood is critical.


Asunto(s)
Ansiedad/psicología , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/virología , Transmisión Vertical de Enfermedad Infecciosa , Trastornos Mentales/psicología , Adolescente , Ansiedad/epidemiología , Niño , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/transmisión , Humanos , Análisis de Clases Latentes , Estudios Longitudinales , Cumplimiento de la Medicación , Trastornos Mentales/epidemiología , Ciudad de Nueva York/epidemiología , Embarazo , Prevalencia , Carga Viral
19.
J Acquir Immune Defic Syndr ; 82(1): 24-33, 2019 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-31169772

RESUMEN

BACKGROUND: Sexual partners are the primary source of incident HIV infection among adolescent girls and young women (AGYW) in sub-Saharan Africa. Identifying partner types at greatest risk of HIV transmission could guide the design of tailored HIV prevention interventions. METHODS: We conducted a secondary analysis of data from AGYW (aged 13-23 years) enrolled in a randomized controlled trial of cash transfers for HIV prevention in South Africa. Annually, AGYW reported behavioral and demographic characteristics of their 3 most recent sexual partners, categorized each partner using prespecified labels, and received HIV testing. We used latent class analysis (LCA) to identify partner types from reported characteristics, and generalized estimating equations to estimate the relationship between both LCA-identified and prespecified partner types and incident HIV infection. RESULTS: Across 2140 AGYW visits, 1034 AGYW made 2968 partner reports and 63 AGYW acquired HIV infection. We identified 5 LCA partner types, which we named monogamous HIV-negative peer partner; one-time protected in-school peer partner; out-of-school older partner; anonymous out-of-school peer partner; and cohabiting with children in-school peer partner. Compared to AGYW with only monogamous HIV-negative peer partners, AGYW with out-of-school older partners had 2.56 times the annual risk of HIV infection (95% confidence interval: 1.23 to 5.33), whereas AGYW with anonymous out-of-school peer partners had 1.72 times the risk (95% confidence interval: 0.82 to 3.59). Prespecified partner types were not associated with incident HIV. CONCLUSION: By identifying meaningful combinations of partner characteristics and predicting the corresponding risk of HIV acquisition among AGYW, LCA-identified partner types may provide new insights for the design of tailored HIV prevention interventions.


Asunto(s)
Infecciones por VIH/epidemiología , Población Rural , Parejas Sexuales , Factores Socioeconómicos , Adolescente , Población Negra , Femenino , Infecciones por VIH/prevención & control , Humanos , Masculino , Vigilancia de la Población , Sudáfrica/epidemiología
20.
AIDS ; 33(9): 1411-1420, 2019 07 15.
Artículo en Inglés | MEDLINE | ID: mdl-30950883

RESUMEN

: Tremendous biomedical advancements in HIV prevention and treatment have led to aspirational efforts to end the HIV epidemic. However, this goal will not be achieved without addressing the significant mental health and substance use problems among people living with HIV (PLWH) and people vulnerable to acquiring HIV. These problems exacerbate the many social and economic barriers to accessing adequate and sustained healthcare, and are among the most challenging barriers to achieving the end of the HIV epidemic. Rates of mental health problems are higher among both people vulnerable to acquiring HIV and PLWH, compared with the general population. Mental health impairments increase risk for HIV acquisition and for negative health outcomes among PLWH at each step in the HIV care continuum. We have the necessary screening tools and efficacious treatments to treat mental health problems among people living with and at risk for HIV. However, we need to prioritize mental health treatment with appropriate resources to address the current mental health screening and treatment gaps. Integration of mental health screening and care into all HIV testing and treatment settings would not only strengthen HIV prevention and care outcomes, but it would additionally improve global access to mental healthcare.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida/complicaciones , Manejo de la Enfermedad , Trastornos Mentales/diagnóstico , Trastornos Mentales/terapia , Servicios de Salud Mental/organización & administración , Humanos
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...