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1.
Afr J AIDS Res ; 22(2): 131-135, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37337826

RESUMEN

Tuberculosis (TB) remains one of the top 10 causes of death worldwide, ranking as the leading cause of death from infectious disease, above HIV and AIDS. South Africa has the sixth highest TB incidence rate in the world and the world's largest HIV epidemic. This study sought to demonstrate the feasibility of community health workers (CHWs) contributing to the implementation of tuberculosis preventive therapy (TPT) among people living with HIV and AIDS. Twelve community health workers were trained to test for communicable and non-communicable diseases and screen for TPT eligibility. They visited a select number of homes monthly to conduct screening for HIV, TB and non-communicable diseases. We recorded screening results, rates of referral for TPT, linkage to care - defined as being seen in the clinic for TPT - and treatment initiation. Among the 1 279 community members screened, 248 were identified as living with HIV, 99 (39.9%) individuals were identified as eligible for TPT, and 46 (46.5%) were referred to care. Among those referred, the median age was 39 (IQR 30-48) and 29 (63%) linked to care; 11 (37.9%) of those linked subsequently initiated treatment. In rural South Africa, it is feasible to train CHWs to identify and refer patients eligible for TPT, but losses occurred at each step of the cascade. CHWs can facilitate TPT implementation, although further implementation research exploring and addressing barriers to TPT (on an individual, provider and systems level) should be prioritised to optimise their role in rural resource-limited settings.


Asunto(s)
Infecciones por VIH , Enfermedades no Transmisibles , Tuberculosis , Humanos , Adulto , Sudáfrica/epidemiología , Infecciones por VIH/diagnóstico , Infecciones por VIH/epidemiología , Infecciones por VIH/prevención & control , Agentes Comunitarios de Salud , Tuberculosis/diagnóstico , Tuberculosis/epidemiología , Tuberculosis/prevención & control
2.
AIDS Care ; 33(11): 1436-1444, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-32856470

RESUMEN

Retention in HIV care is crucial to sustaining viral load suppression, and reducing HIV transmission, yet loss to follow-up (LTFU) in South Africa remains substantial. We conducted a mixed methods evaluation in rural South Africa to characterize ART disengagement in neglected rural settings. Using convenience sampling, surveys were completed by 102 PLWH who disengaged from ART (minimum 90 days) and subsequently resumed care. A subset (n = 60) completed individual in-depth interviews. Median duration of ART discontinuation was 9 months (IQR 4-22). Participants had HIV knowledge gaps regarding HIV transmission and increased risk of tuberculosis. The major contributors to LTFU were mobility and structural barriers. PLWH traveled for an urgent family need or employment, and were not able to collect ART while away. Structural barriers included inability to access care, due to lack of financial resources to reach distant clinics. Other factors included dissatisfaction with care, pill fatigue, lack of social support, and stigma. Illness was the major precipitant of returning to care. Mobility and structural barriers impede longitudinal HIV care in rural South Africa, threatening the gains made from expanded ART access. To achieve 90-90-90, future interventions, including emphasis on patient centered care, must address barriers relevant to rural settings.


Asunto(s)
Infecciones por VIH , Estudios de Seguimiento , Infecciones por VIH/tratamiento farmacológico , Humanos , Población Rural , Estigma Social , Sudáfrica
3.
AIDS Care ; 29(7): 936-942, 2017 07.
Artículo en Inglés | MEDLINE | ID: mdl-28147705

RESUMEN

Despite the recent rollout of Isoniazid Preventive Therapy (IPT) to prevent TB in people living with HIV in South Africa, adherence and completion rates are low. To explore barriers to IPT completion in rural KwaZulu-Natal, South Africa, we conducted individual semi-structured interviews among 30 HIV patients who had completed or defaulted IPT. Interview transcripts were analyzed according to the framework method of qualitative analysis. Facilitators of IPT completion included knowledge of TB and IPT, accepting one's HIV diagnosis, viewing IPT as similar to antiretroviral therapy, having social support in the community and the clinic, trust in the healthcare system, and desire for health preservation. Barriers included misunderstanding of IPT's preventive role in the absence of symptoms, inefficient health service delivery, ineffective communication with healthcare workers, financial burden of transport to clinic and lost wages, and competing priorities. HIV-related stigma was not identified as a significant barrier to IPT completion, and participants felt confident in their ability to manage stigma, for example by pretending their medications were for unrelated conditions. Completers were more comfortable communicating with health care workers than were defaulters. Efforts to facilitate successful IPT completion must include appropriate counseling and education for individual patients and addressing inefficiencies within the health care system in order to minimize patients' financial and logistical burden. These patient-level and structural changes are necessary for IPT to successfully reduce TB incidence in this resource-limited setting.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA/prevención & control , Antituberculosos/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Conocimientos, Actitudes y Práctica en Salud , Isoniazida/uso terapéutico , Cooperación del Paciente , Tuberculosis/tratamiento farmacológico , Adulto , Instituciones de Atención Ambulatoria , Consejo , Femenino , Infecciones por VIH/complicaciones , Infecciones por VIH/epidemiología , Accesibilidad a los Servicios de Salud , Humanos , Incidencia , Entrevistas como Asunto , Masculino , Investigación Cualitativa , Población Rural , Estigma Social , Sudáfrica/epidemiología , Confianza , Tuberculosis/epidemiología , Tuberculosis/psicología
4.
Emerg Infect Dis ; 20(3): 426-33, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24565645

RESUMEN

Multidrug- (MDR) and extensively drug-resistant tuberculosis (XDR TB) are commonly associated with Beijing strains. However, in KwaZulu-Natal, South Africa, which has among the highest incidence and mortality for MDR and XDR TB, data suggest that non-Beijing strains are driving the epidemic. We conducted a retrospective study to characterize the strain prevalence among drug-susceptible, MDR, and XDR TB cases and determine associations between strain type and survival. Among 297 isolates from 2005-2006, 49 spoligotype patterns were found. Predominant strains were Beijing (ST1) among drug-susceptible isolates (27%), S/Quebec (ST34) in MDR TB (34%) and LAM4/KZN (ST60) in XDR TB (89%). More than 90% of patients were HIV co-infected. MDR TB and XDR TB were independently associated with mortality, but TB strain type was not. We conclude that, although Beijing strain was common among drug-susceptible TB, other strains predominated among MDR TB and XDR TB cases. Drug-resistance was a stronger predictor of survival than strain type.


Asunto(s)
Mycobacterium tuberculosis/clasificación , Tuberculosis Resistente a Múltiples Medicamentos/epidemiología , Tuberculosis Resistente a Múltiples Medicamentos/microbiología , Adulto , Antituberculosos/farmacología , Coinfección , Femenino , Variación Genética , Técnicas de Genotipaje , Infecciones por VIH , Humanos , Incidencia , Masculino , Pruebas de Sensibilidad Microbiana , Mycobacterium tuberculosis/efectos de los fármacos , Mycobacterium tuberculosis/aislamiento & purificación , Estudios Retrospectivos , Sudáfrica/epidemiología , Análisis de Supervivencia
5.
BMC Infect Dis ; 14: 11, 2014 Jan 09.
Artículo en Inglés | MEDLINE | ID: mdl-24400822

RESUMEN

BACKGROUND: In drug-resistant TB settings, specimen collection is critical for drug-susceptibility testing (DST). This observational study included multiple specimen types collected from pediatric TB suspects with the aim to determine diagnostic yield and inform clinical practice in children with drug-resistant and drug-susceptible TB. METHODS: From 03/2009-07/2010, TB suspects aged ≥6 months and ≤12 years were recruited among outpatient and inpatient settings. Subjects were new TB suspects or had persistent symptoms despite ≥2 months of TB treatment. The protocol included collection of a single blood and urine specimen, a single sputum induction and, if inpatients and <5 years of age, collection of 3 gastric aspirates (GA). Samples were cultured on solid and/or liquid media. DST was by 1% proportion method. RESULTS: Among 118 children with possible, probable or confirmed TB, the mean age was 4.9 years [SD 3.2] and 64 (62%) of those tested were HIV-positive. Eight (7%) subjects were culture-positive from at least one specimen; yield did not differ by HIV status or TB treatment history. Among those with positive cultures, 7/8 (88%) were from induced sputum, 5/6 (83%) from GA, 3/8 (38%) from blood, and 3/7 (43%) from urine. In subjects with both induced sputum and GA collection, sputum provided one additional case compared to GA. Multidrug resistant (MDR)-TB was detected by urine culture alone in one child >5 years old. Pan-resistant extensively drug resistant (XDR)-TB was identified by cultures from all sites in one subject. CONCLUSIONS: TB was cultured from HIV-positive and -negative children, and allowed for identification of MDR and XDR-TB cases. Urine and induced sputum each provided an additional TB diagnosis and, when compared to GA, may be considered a less invasive, same-day method of specimen collection for childhood TB suspects. This study illustrates the continued challenges and limitations of available strategies for pediatric TB diagnostics.


Asunto(s)
Mycobacterium tuberculosis/aislamiento & purificación , Manejo de Especímenes , Esputo/microbiología , Tuberculosis/diagnóstico , Niño , Preescolar , Tuberculosis Extensivamente Resistente a Drogas/diagnóstico , Femenino , Contenido Digestivo/microbiología , Seropositividad para VIH , Humanos , Lactante , Masculino , Población Rural , Sudáfrica , Tuberculosis/sangre , Tuberculosis/orina
6.
Qual Health Res ; 24(3): 317-28, 2014 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-24583654

RESUMEN

Family caregivers are central to palliative care in sub-Saharan Africa. Yet although supporting caregivers requires a comprehensive understanding of caregiver burden, there has been little research into this topic in Africa. Using the Stress Process Model to investigate the burden experienced by caregivers in South Africa and Uganda, we interviewed 37 caregivers and analyzed the data thematically. Caregivers' primary stressors related to day-to-day patient care and emotional support; secondary stressors included financial hardship, family responsibilities, and social isolation. Caregivers' social, relational, spiritual, and psychological resources mediated the effects of these stressors. Strengthening one resource strengthened others, but the failure of one resource hindered other resources, exacerbating burden. In providing caregiver support, policymakers and service providers should focus on enhancing caregivers' resources as well as alleviating their stressors.


Asunto(s)
Adaptación Psicológica , Cuidadores/psicología , Cuidados Paliativos , Estrés Psicológico/psicología , Adulto , Anciano , Progresión de la Enfermedad , Femenino , Humanos , Entrevistas como Asunto , Masculino , Persona de Mediana Edad , Investigación Cualitativa , Sudáfrica , Uganda
7.
J Infect Dis ; 207(1): 9-17, 2013 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-23166374

RESUMEN

BACKGROUND: Extensively drug-resistant tuberculosis (XDR-tuberculosis) is a global public health threat, but few data exist elucidating factors driving this epidemic. The initial XDR-tuberculosis report from South Africa suggested transmission is an important factor, but detailed epidemiologic and molecular analyses were not available for further characterization. METHODS: We performed a retrospective, observational study among XDR-tuberculosis patients to identify hospital-associated epidemiologic links. We used spoligotyping, IS6110-based restriction fragment-length polymorphism analysis, and sequencing of resistance-determining regions to identify clusters. Social network analysis was used to construct transmission networks among genotypically clustered patients. RESULTS: Among 148 XDR-tuberculosis patients, 98% were infected with human immunodeficiency virus (HIV), and 59% had smear-positive tuberculosis. Nearly all (93%) were hospitalized while infectious with XDR-tuberculosis (median duration, 15 days; interquartile range: 10-25 days). Genotyping identified a predominant cluster comprising 96% of isolates. Epidemiologic links were identified for 82% of patients; social network analysis demonstrated multiple generations of transmission across a highly interconnected network. CONCLUSIONS: The XDR-tuberculosis epidemic in Tugela Ferry, South Africa, has been highly clonal. However, the epidemic is not the result of a point-source outbreak; rather, a high degree of interconnectedness allowed multiple generations of nosocomial transmission. Similar to the outbreaks of multidrug-resistant tuberculosis in the 1990s, poor infection control, delayed diagnosis, and a high HIV prevalence facilitated transmission. Important lessons from those outbreaks must be applied to stem further expansion of this epidemic.


Asunto(s)
Antituberculosos/uso terapéutico , Infección Hospitalaria/transmisión , Tuberculosis Extensivamente Resistente a Drogas/transmisión , Infecciones por VIH/complicaciones , Mycobacterium tuberculosis/clasificación , Adulto , Análisis por Conglomerados , Infección Hospitalaria/complicaciones , Infección Hospitalaria/epidemiología , Infección Hospitalaria/microbiología , Quimioterapia Combinada , Etambutol/uso terapéutico , Tuberculosis Extensivamente Resistente a Drogas/complicaciones , Tuberculosis Extensivamente Resistente a Drogas/epidemiología , Tuberculosis Extensivamente Resistente a Drogas/microbiología , Femenino , Genotipo , Infecciones por VIH/virología , Hospitales Rurales , Humanos , Isoniazida/uso terapéutico , Masculino , Mutación , Mycobacterium tuberculosis/genética , Mycobacterium tuberculosis/aislamiento & purificación , Polimorfismo de Longitud del Fragmento de Restricción , Prevalencia , Pirazinamida/uso terapéutico , Estudios Retrospectivos , Rifampin/uso terapéutico , Análisis de Secuencia de ADN , Sudáfrica/epidemiología
8.
BMC Infect Dis ; 13: 300, 2013 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-23815441

RESUMEN

BACKGROUND: Transmission of drug susceptible and drug resistant TB occurs in health care facilities, and community and households settings, particularly in highly prevalent TB and HIV areas. There is a paucity of data regarding factors that may affect TB transmission risk in household settings. We evaluated air exchange and the impact of natural ventilation on estimated TB transmission risk in traditional Zulu homes in rural South Africa. METHODS: We utilized a carbon dioxide decay technique to measure ventilation in air changes per hour (ACH). We evaluated predominant home types to determine factors affecting ACH and used the Wells-Riley equation to estimate TB transmission risk. RESULTS: Two hundred eighteen ventilation measurements were taken in 24 traditional homes. All had low ventilation at baseline when windows were closed (mean ACH = 3, SD = 3.0), with estimated TB transmission risk of 55.4% over a ten hour period of exposure to an infectious TB patient. There was significant improvement with opening windows and door, reaching a mean ACH of 20 (SD = 13.1, p < 0.0001) resulting in significant decrease in estimated TB transmission risk to 9.6% (p < 0.0001). Multivariate analysis identified factors predicting ACH, including ventilation conditions (windows/doors open) and window to volume ratio. Expanding ventilation increased the odds of achieving ≥12 ACH by 60-fold. CONCLUSIONS: There is high estimated risk of TB transmission in traditional homes of infectious TB patients in rural South Africa. Improving natural ventilation may decrease household TB transmission risk and, combined with other strategies, may enhance TB control efforts.


Asunto(s)
Vivienda/normas , Tuberculosis/prevención & control , Ventilación/métodos , Movimientos del Aire , Análisis de Varianza , Humanos , Análisis Multivariante , Riesgo , Factores de Riesgo , Sudáfrica/epidemiología , Temperatura , Tuberculosis/epidemiología , Tuberculosis/transmisión
9.
Glob Public Health ; 17(4): 555-568, 2022 04.
Artículo en Inglés | MEDLINE | ID: mdl-33650939

RESUMEN

The World Health Organization (WHO) recommends tuberculosis preventive treatment (TPT) in people with HIV (PWH), yet implementation remains poor, especially in rural communities. We examined factors influencing TPT initiation in PWH on antiretroviral therapy (ART) in rural South Africa using the Promoting Action on Research Implementation in Health Services (PARiHS) framework to identify contextual factors and facilitation strategies to successfully implement TPT. Patient and clinical factors were extracted from medical records at two primary healthcare clinics (PHCs). Among 455 TPT eligible indivdiuals, only 263 (57.8%) initiated TPT. Patient-level characteristics (older age and symptoms of fever or weight loss) were significantly associated with TPT initiation in bivariate analysis, but PHC was the only independent correlate of TPT initiation (aOR: 2.24; 95% CI: 1.49-3.38). Clinic-level factors are crucial targets for implementing TPT to reduce the burden of HIV-associated TB. Gaps in knowledge of HCW, staff shortages, and non-integrated HIV/TB services were identified barriers to TPT implementation. Evidence-based strategies for facilitating TPT implementation that might be under-prioritized include ongoing reprioritization, expanding training for primary care providers, and quality improvement strategies (organisational changes, multidisciplinary teams, and monitoring and feedback). Addressing contextual barriers through these facilitation strategies may improve future TPT implementation in this setting.


Asunto(s)
Infecciones por VIH , Tuberculosis , Infecciones por VIH/diagnóstico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control , Humanos , Atención Primaria de Salud , Población Rural , Sudáfrica , Tuberculosis/diagnóstico , Tuberculosis/tratamiento farmacológico , Tuberculosis/prevención & control
10.
PLOS Glob Public Health ; 2(12): e0001269, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36962910

RESUMEN

Expansion of tuberculous preventive therapy (TPT) is essential to curb TB incidence and mortality among people with HIV (PWH), yet implementation has been slow. Innovative strategies to operationalize TPT are urgently needed. Here we present an evaluation of community-based identification and referral of PWH on completion of a six-month course of isoniazid in a highly prevalent region in rural South Africa. Using a community-based TB/HIV intensive case finding strategy, a team of nurses and lay workers identified community members with HIV who were without fever, night sweats, weight loss, or cough and referred them to the government primary care clinics for daily oral isoniazid, the only available TPT regimen. We measured monthly adherence and six-month treatment completion in the community-based identification and referral (CBR) group compared to those already engaged in HIV care. Adherence was measured by self-report and urine isoniazid metabolite testing. A multivariable analysis was performed to identify independent predictors of TPT completion. Among 240 participants, 81.7% were female, median age 35 years (IQR 30-44), and 24.6% had previously been treated for TB. The median CD4 count in the CBR group was 457 (IQR 301-648), significantly higher than the clinic-based comparison group median CD4 of 344 (IQR 186-495, p<0.001). Independent predictors of treatment completion included being a woman (aOR 2.41, 95% 1.02-5.72) and community-based identification and referral for TPT (aOR 2.495, 95% 1.13-5.53). Among the CBR group, treatment completion was 90.0%, an absolute 10.8% higher than the clinic-based comparison group (79.2%, p = 0.02). Adherence was significantly greater in the CBR group than the clinic-based comparison group, as measured by self-report (p = 0.02) and urine isoniazid testing (p = 0.01). Among those not on ART at baseline, 10% of eligible PWH subsequently initiated ART. Community members living with HIV in TB endemic regions identified and referred for TPT demonstrated higher treatment completion and adherence compared to PWH engaged for TPT while receiving clinic-based care. Community-based identification and referral is an innovative adjunctive strategy to facilitate implementation of TB preventive therapy in people living with HIV.

11.
Emerg Infect Dis ; 17(3): 510-3, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21392446
12.
Am J Respir Crit Care Med ; 181(1): 80-6, 2010 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-19833824

RESUMEN

RATIONALE: The multidrug-resistant (MDR) and extensively drug-resistant (XDR) tuberculosis (TB) epidemics are rapidly expanding in South Africa. Our initial report of HIV-associated XDR TB in South Africa revealed rapid and near complete mortality. Lower mortality has been described in the literature, but few of these patients have been HIV coinfected. OBJECTIVES: To characterize mortality from MDR and XDR TB in a setting with high HIV-coinfection rates. METHODS: We conducted a retrospective observational study among 654 MDR and XDR TB cases diagnosed in Tugela Ferry, South Africa, from 2005 to 2007. Demographics and HIV status were abstracted from available medical records. MEASUREMENTS AND MAIN RESULTS: Survival was determined from the date of sputum collection until October 2008 and correlated with year of diagnosis and drug-susceptibility test results. From 2005 to 2007, 272 MDR TB and 382 XDR TB cases were diagnosed; HIV-coinfection rates were 90 and 98%, respectively. One-year mortality was 71% for MDR and 83% for XDR TB patients; 40% of MDR TB and 51% of XDR TB cases died within 30 days of sputum collection. One-year mortality among both MDR and XDR TB patients improved from 2005 to 2007; however, the majority of deaths still occurred within the first 30 days. One-year and 30-day mortality rates were worse with greater degree of drug resistance (P < 0.001). CONCLUSIONS: Mortality from MDR and XDR TB in this high HIV-prevalence region is extraordinarily high, particularly within the first 30 days. Efforts to reduce mortality must focus on earlier diagnosis and early initiation of second-line TB and antiretroviral therapy.


Asunto(s)
Tuberculosis Extensivamente Resistente a Drogas/complicaciones , Infecciones por VIH/complicaciones , Adulto , Tuberculosis Extensivamente Resistente a Drogas/mortalidad , Femenino , Infecciones por VIH/mortalidad , Humanos , Estimación de Kaplan-Meier , Masculino , Sudáfrica/epidemiología
13.
J Int AIDS Soc ; 24(11): e25848, 2021 11.
Artículo en Inglés | MEDLINE | ID: mdl-34826363

RESUMEN

INTRODUCTION: South Africa, home to the world's largest HIV epidemic, has made great strides in improving access to HIV services, but specific groups, particularly young men, remain difficult to engage in the HIV care cascade. Alcohol use disorder, prevalent in South Africa, further complicates engagement. Congregate settings where alcohol is served, known as shebeens, are an ideal place to engage young people for HIV testing, treatment and prevention, including pre-exposure prophylaxis (PrEP). Here, we characterize the uptake of PrEP in shebeen patrons and explore the effect of alcohol consumption on PrEP uptake by piloting a community-based delivery model. METHODS: In the rural Kwazulu-Natal province (KZN) of South Africa, a field team made up of all men offered screenings outside of shebeens at 27 events over 6 months in 2020. Screenings included rapid HIV testing and Alcohol Use Disorder Identification Test (AUDIT). Participants who tested negative for HIV were offered PrEP as once daily oral tenofovir disoproxil fumarate/emtricitabine. Short-term retention was determined. Logistic regression was performed to identify predictors of PrEP uptake, including unadjusted and adjusted odds ratios (OR) with 95% confidence interval. RESULTS: One hundred and sixty-two shebeen patrons were screened, and 136 (84%) were eligible for PrEP. Among those eligible, 37 (27%) completed clinical evaluation and initiated PrEP. Among PrEP initiators, 91.9% were men, median age was 26.0 years (interquartile range 21-31), 32.4% were employed, 18.9% had running water and 70.3% had AUDIT scores indicating hazardous drinking. Among 37 initiators, 25 (68%) were retained at 1 month, and 19 (51%) were retained at 4 months. Independent predictors of PrEP uptake among all bar patrons, and only men (108 screened and 34 initiators), included younger age (OR 0.92 [0.88-0.97]) and lifetime number of sexual partners (OR 1.07 [1.02-1.13]). CONCLUSIONS: Community-based PrEP delivery after engagement at shebeens in rural South Africa is a feasible and novel approach to reach a traditionally difficult-to-engage population, particularly young men. In this small sample, sexual risk behaviours predicted PrEP uptake. Hazardous drinking was not a barrier to PrEP initiation.


Asunto(s)
Fármacos Anti-VIH , Infecciones por VIH , Profilaxis Pre-Exposición , Adolescente , Adulto , Fármacos Anti-VIH/uso terapéutico , Estudios de Factibilidad , Infecciones por VIH/diagnóstico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Humanos , Masculino , Cumplimiento de la Medicación , Sudáfrica
14.
Glob Health Action ; 14(1): 1979281, 2021 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-34652990

RESUMEN

BACKGROUND: Despite extensive rollout of tuberculosis preventive therapy (TPT) in South Africa to reduce the incidence of tuberculosis among people living with HIV (PWH), rates of initiation and completion have remained suboptimal. OBJECTIVE: This study aimed to identify factors associated with low TPT prescription rates among health care workers (HCWs) in rural South Africa. METHODS: A cross-sectional study was conducted using an anonymous 39-item questionnaire guided by the Consolidated Framework for Implementation Research (CFIR). HCWs from a government district hospital and 14 primary healthcare clinics (PHCs) in the rural Msinga sub-district of KwaZulu-Natal were surveyed from November 2019 to January 2020. Self-reported data on prescription rates as well as knowledge, attitudes, beliefs, and practices regarding isoniazid preventative therapy, the current TPT regimen, were obtained. Factor analysis and logistic regression were used to determine associations with low prescription rates (< 50% of PWH) for TPT prescribers, and results were placed within CFIR-driven context. RESULTS: Among 160 HCWs, the median (IQR) age was 39 (33-46) years, 76% were women, 78% worked at a PHC, and 44% had experience prescribing TPT. On multivariable analysis, prescribers (n = 71) who believed their patients would not disclose TPT use to others were significantly less likely to prescribe TPT (aOR 4.19 95% CI 1.35-13.00; p = 0.01). Inadequate isoniazid supplies trended towards significance (aOR 10.10 95% CI 0.95-106.92; p = 0.06) in association with low prescription rates. CONCLUSIONS: Strengthening HCW training to emphasize TPT prescription to all eligible PWH regardless of beliefs about patient disclosure and ensuring a consistent isoniazid supply at the health systems-level are both critical steps to enhancing TPT implementation in rural South Africa.


Asunto(s)
Infecciones por VIH , Tuberculosis , Adulto , Estudios Transversales , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/prevención & control , Personal de Salud , Humanos , Persona de Mediana Edad , Prescripciones , Sudáfrica , Tuberculosis/tratamiento farmacológico , Tuberculosis/prevención & control
16.
AIDS Care ; 22(4): 462-74, 2010 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-20204909

RESUMEN

Following a controversial history and before South Africa started the world's largest highly active antiretroviral therapy (HAART) rollout, little was known about community-level information, motivation, and behavioral skills (IMB) regarding HAART in high-HIV-prevalence rural communities. The IMB model has been shown to predict behaviors that are associated with desirable HAART outcomes. We conducted an anonymous, cross-sectional "HAART-Felt Prospects" survey among HIV-serostatus-unknown young adults in Tugela Ferry, KwaZulu-Natal. We aimed to identify behavioral aspects of HAART preparedness that could be targeted by local interventions to enhance HAART outcomes. Data analysis included: percent correct, thematic means based on a four-point Likert-scale, and composite quotients. Subjects (N=176) were Zulu (99%), young (mean 19 years), and severely impoverished (55%). Relatively high levels of information were reported: overall correct score was 46%, secondary-transmission-of-resistance information was highest (81%), and only 15% reported traditional or government-advocated folk remedies cure or treat HIV/AIDS. Motivation quotient was "consistent" with favorable HAART behaviors; attitudes toward medication-taking behaviors (3.48) and condom use during HAART (3.43) ranked the highest. Desire for HIV testing (71%) was associated with HIV treatment optimism [adjusted odds ratio (AOR)=4.0, p=0.0004] and previous experience with good treatment outcome [AOR=3.2, p=0.01]. Acceptance of HAART (93%) was associated with HIV optimism [AOR=18.0, p=0.001] and not believing government-advocated folk remedies cure or treat HIV/AIDS [AOR=10.0, p=0.04]. Behavioral skills quotient was "neutral" for favorable HAART behaviors; side effects self-efficacy was the highest (3.16); and medication-taking self-efficacy the lowest (2.51). Only 47% believed disclosing HIV-serostatus would be easy. Despite controversy surrounding HAART initiation, these results suggest that local South African at-risk youth were relatively well-poised for HAART rollout. This conclusion is supported by subsequent successful HAART rollout locally. Community-based assessments are urgently needed as HAART rollouts continue. Adaptation of this IMB-based survey may better inform efforts to enhance HAART-program implementation in resource-limited settings globally.


Asunto(s)
Terapia Antirretroviral Altamente Activa , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/psicología , Conocimientos, Actitudes y Práctica en Salud , Modelos Psicológicos , Motivación , Adolescente , Adulto , Terapia Antirretroviral Altamente Activa/psicología , Condones/estadística & datos numéricos , Estudios Transversales , Femenino , Humanos , Masculino , Cumplimiento de la Medicación , Aceptación de la Atención de Salud , Asunción de Riesgos , Sexo Seguro , Sudáfrica , Adulto Joven
17.
BMC Infect Dis ; 10: 344, 2010 Dec 06.
Artículo en Inglés | MEDLINE | ID: mdl-21134279

RESUMEN

BACKGROUND: The yield of mycobacterial blood cultures for multidrug-resistant (MDR) and extensively drug-resistant tuberculosis (XDR-TB) among drug-resistant TB suspects has not been described. METHODS: We performed a retrospective, cross-sectional analysis to determine the yield of mycobacterial blood cultures for MDR-TB and XDR-TB among patients suspected of drug-resistant TB from rural South Africa. Secondary outcomes included risk factors of Mycobacterium tuberculosis bacteremia and the additive yield of mycobacterial blood cultures compared to sputum culture. RESULTS: From 9/1/2006 to 12/31/2008, 130 patients suspected of drug-resistant TB were evaluated with mycobacterial blood culture. Each patient had a single mycobacterial blood culture with 41 (32%) positive for M. tuberculosis, of which 20 (49%) were XDR-TB and 8 (20%) were MDR-TB. One hundred fourteen (88%) patients were known to be HIV-infected. Patients on antiretroviral therapy were significantly less likely to have a positive blood culture for M. tuberculosis (p = 0.002). The diagnosis of MDR or XDR-TB was made by blood culture alone in 12 patients. CONCLUSIONS: Mycobacterial blood cultures provided an additive yield for diagnosis of drug-resistant TB in patients with HIV from rural South Africa. The use of mycobacterial blood cultures should be considered in all patients suspected of drug-resistant TB in similar settings.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA/microbiología , Tuberculosis Extensivamente Resistente a Drogas/sangre , Infecciones por VIH/microbiología , Mycobacterium tuberculosis/aislamiento & purificación , Infecciones Oportunistas Relacionadas con el SIDA/sangre , Infecciones Oportunistas Relacionadas con el SIDA/complicaciones , Adolescente , Adulto , Niño , Preescolar , Estudios Transversales , Tuberculosis Extensivamente Resistente a Drogas/complicaciones , Tuberculosis Extensivamente Resistente a Drogas/epidemiología , Femenino , Infecciones por VIH/sangre , Infecciones por VIH/complicaciones , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Factores de Riesgo , Población Rural , Sudáfrica/epidemiología , Esputo/microbiología , Adulto Joven
18.
Glob Public Health ; 15(9): 1337-1348, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-32207661

RESUMEN

BACKGROUND: Gaps persist in HIV testing, treatment, and prevention services for men, leading to higher attributable mortality compared to women. We sought to characterise HIV prevention knowledge, risk behaviours, and interest in pre-exposure prophylaxis (PrEP) among young men in rural South Africa. METHODS: We conducted interviews with HIV-negative heterosexual men which were thematically analysed to identify key themes. RESULTS: Among 31 participants, median age was 26 (IQR23-31), 77% were unemployed, 52% reported previous STI, 84% reported casual sexual partners. Men acknowledged inconsistent condom use with multiple partners, reporting high-risk sexual behaviour despite recognised risk. Mistrust between partners was common. Respondents reported willingness to take PrEP to protect themselves and their partner, though anticipated stigma and structural barriers. Men worried that if their female partner had PrEP, she would become sexually active with others. CONCLUSIONS: In rural South Africa, young heterosexual men acknowledged high HIV-risk behaviour, expressed concern about acquiring HIV, and recognised the value of PrEP. Men were often not supportive of their female partners taking PrEP. Implementing HIV prevention services needs to incorporate young men's perspectives and may require gender-specific interventions, including addressing stigma, differentiated service delivery models such as community-based services or adapting facility services to target men.


Asunto(s)
Infecciones por VIH , Hombres , Profilaxis Pre-Exposición , Adulto , Infecciones por VIH/prevención & control , Heterosexualidad , Humanos , Masculino , Hombres/psicología , Población Rural/estadística & datos numéricos , Sudáfrica , Adulto Joven
19.
Lancet Infect Dis ; 9(3): 153-61, 2009 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-19246019

RESUMEN

Multidrug-resistant (MDR) tuberculosis is a growing clinical and public-health concern. To evaluate existing evidence regarding treatment regimens for MDR tuberculosis, we used a Bayesian random-effects meta-analysis of the available therapeutic studies to assess how the reported proportion of patients treated successfully is influenced by differences in treatment regimen design, study methodology, and patient population. Successful treatment outcome was defined as cure or treatment completion. 34 clinical reports with a mean of 250 patients per report met the inclusion criteria. Our analysis shows that the proportion of patients treated successfully improved when treatment duration was at least 18 months, and if patients received directly observed therapy throughout treatment. Studies that combined both factors had significantly higher pooled success proportions (69%, 95% credible interval [CI] 64-73%) than other studies of treatment outcomes (58%, 95% CI 52-64%). Individualised treatment regimens had higher treatment success (64%, 95% CI 59-68%) than standardised regimens (54%, 95% CI 43-68%), although the difference was not significant. Treatment approaches and study methodologies were heterogeneous across studies. Many important variables, including patients' HIV status, were inconsistently reported between studies. These results underscore the importance of strong patient support and treatment follow-up systems to develop successful MDR tuberculosis treatment programmes.


Asunto(s)
Antituberculosos/uso terapéutico , Terapia por Observación Directa , Tuberculosis Resistente a Múltiples Medicamentos/tratamiento farmacológico , Ensayos Clínicos como Asunto , Humanos
20.
AIDS Patient Care STDS ; 33(5): 214-219, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-31067125

RESUMEN

Young sub-Saharan women are at particularly high risk of HIV acquisition during pregnancy and the postpartum period and would potentially benefit from preexposure prophylaxis (PrEP). From June to August 2016, we interviewed 187 HIV negative pregnant women 18-24 years old in Tugela Ferry, Kwazulu-Natal province, a rural and among the poorest subdistricts in South Africa. Demographic data, HIV and PrEP knowledge, HIV risk, and readiness for oral tenofovir-based PrEP were collected using an information-motivation-behavior model-formatted instrument. Mean age was 20.3 years, 179 (95.7%) were unemployed, and 137 (73.3%) reported sex with one partner in the last month. Most were concerned that their sexual partner (95.2%) potentially had HIV or had other sexual partners in the last month (36.4%). Despite this, only 7 (3.7%) women reported that condoms had been used consistently during sex; most (97.3%) felt powerless to negotiate condom use with their partner. There was widespread interest in taking PrEP (97.3%), and most women (>97%) reported possessing the skills to take pills regularly, would commit to monthly visits, and were motivated to remain HIV negative to take care of their families. Young pregnant rural South African women are cognizant of their HIV risk and interested in prevention. Impending motherhood may portend increased interest in HIV prevention. We identified three potential obstacles to successful PrEP rollout among young pregnant women: hesitation about PrEP effectiveness (46%), perceived HIV stigma (53.5%), and risk compensation through decreased condom use (9.6%). Comparative studies of motivations, skills, and rates of initiation and adherence among pregnant and nonpregnant women are needed to inform optimal implementation efforts.


Asunto(s)
Fármacos Anti-VIH/administración & dosificación , Condones/estadística & datos numéricos , Infecciones por VIH/prevención & control , Conocimientos, Actitudes y Práctica en Salud , Profilaxis Pre-Exposición/métodos , Mujeres Embarazadas/psicología , Tenofovir/administración & dosificación , Adolescente , Femenino , Infecciones por VIH/tratamiento farmacológico , Humanos , Masculino , Motivación , Embarazo , Mujeres Embarazadas/etnología , Conducta de Reducción del Riesgo , Parejas Sexuales/psicología , Sudáfrica , Tenofovir/uso terapéutico , Adulto Joven
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