Last data update: Dec 09, 2024. (Total: 48320 publications since 2009)
Records 1-25 (of 25 Records) |
Query Trace: Pathmanathan I[original query] |
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Evaluation of community-based, mobile HIV-care, peer-delivered linkage case management in Manzini Region, Eswatini
Suraratdecha C , MacKellar D , Hlophe T , Dlamini M , Ujamaa D , Pals S , Dube L , Williams D , Byrd J , Mndzebele P , Behel S , Pathmanathan I , Mazibuko S , Tilahun E , Ryan C . Int J Environ Res Public Health 2022 20 (1) The success of antiretroviral therapy (ART) requires continuous engagement in care and optimal levels of adherence to achieve sustained HIV viral suppression. We evaluated HIV-care cascade costs and outcomes of a community-based, mobile HIV-care, peer-delivered linkage case-management program (CommLink) implemented in Manzini region, Eswatini. Abstraction teams visited referral facilities during July 2019-April 2020 to locate, match, and abstract the clinical data of CommLink clients diagnosed between March 2016 and March 2018. An ingredients-based costing approach was used to assess economic costs associated with CommLink. The estimated total CommLink costs were $2 million. Personnel costs were the dominant component, followed by travel, commodities and supplies, and training. Costs per client tested positive were $499. Costs per client initiated on ART within 7, 30, and 90 days of diagnosis were $2114, $1634, and $1480, respectively. Costs per client initiated and retained on ART 6, 12, and 18 months after diagnosis were $2343, $2378, and $2462, respectively. CommLink outcomes and costs can help inform community-based HIV testing, linkage, and retention programs in other settings to strengthen effectiveness and improve efficiency. |
Trends in TB and HIV care and treatment cascade, Kenya, 2008-2018
Weyenga H , Onyango E , Katana AK , Pathmanathan I , Sidibe K , Shah NS , Ngugi EW , Waruingi RN , Ng Ang AL , De Cock KM . Int J Tuberc Lung Dis 2022 26 (7) 623-628 BACKGROUND: HIV infection is associated with high mortality among people with TB. Antiretroviral therapy (ART) reduces TB incidence and mortality among people living with HIV (PLHIV). Since 2005, Kenya has scaled up TB and HIV prevention, diagnosis and treatment. We evaluated the impact of these services on trends and TB treatment outcomes.METHODS: Using Microsoft Excel (2016) and Epi-Info 7, we analysed Kenya Ministry of Health TB surveillance data from 2008 to 2018 to determine trends in TB notifications, TB classification, HIV and ART status, and TB treatment outcomes.RESULTS: Among the 1,047,406 people reported with TB, 93% knew their HIV status, and 37% of these were HIV-positive. Among persons with TB and HIV, 69% received ART. Between 2008 and 2018, annual TB notifications declined from 110,252 to 96,562, and HIV-coinfection declined from 45% to 27%. HIV testing and ART uptake increased from 83% to 98% and from 30% to 97%, respectively. TB case fatality rose from 3.5% to 3.9% (P <0.018) among HIV-negative people and from 5.1% to 11.2% (P <0.001) among PLHIV on ART.CONCLUSION: TB notifications decreased in settings with suboptimal case detection. Although HIV-TB services were scaled-up, HIV-TB case fatality rose significantly. Concerted efforts are needed to address case detection and gaps in quality of TB care. |
Antiretroviral therapy initiation and retention among clients who received peer-delivered linkage case management and standard linkage services, Eswatini, 2016-2020: retrospective comparative cohort study
MacKellar D , Hlophe T , Ujamaa D , Pals S , Dlamini M , Dube L , Suraratdecha C , Williams D , Byrd J , Tobias J , Mndzebele P , Behel S , Pathmanathan I , Mazibuko S , Tilahun E , Ryan C . Arch Public Health 2022 80 (1) 74 BACKGROUND: Persons living with HIV infection (PLHIV) who are diagnosed in community settings in sub-Saharan Africa are particularly vulnerable to barriers to care that prevent or delay many from obtaining antiretroviral therapy (ART). METHODS: We conducted a retrospective cohort study to assess if a package of peer-delivered linkage case management and treatment navigation services (CommLink) was more effective than peer-delivered counseling, referral, and telephone follow-up (standard linkage services, SLS) in initiating and retaining PLHIV on ART after diagnosis in community settings in Eswatini. HIV-test records of 773 CommLink and 769 SLS clients aged15years diagnosed between March 2016 and March 2018, matched by urban and rural settings of diagnosis, were selected for the study. CommLink counselors recorded resolved and unresolved barriers to care (e.g., perceived wellbeing, fear of partner response, stigmatization) during a median of 52days (interquartile range: 35-69) of case management. RESULTS: Twice as many CommLink than SLS clients initiated ART by 90days of diagnosis overall (88.4% vs. 37.9%, adjusted relative risk (aRR): 2.33, 95% confidence interval (CI): 1.97, 2.77) and during test and treat when all PLHIV were eligible for ART (96.2% vs. 37.1%, aRR: 2.59, 95% CI: 2.20, 3.04). By 18months of diagnosis, 54% more CommLink than SLS clients were initiated and retained on ART (76.3% vs. 49.5%, aRR: 1.54, 95% CI: 1.33, 1.79). Peer counselors helped resolve 896 (65%) of 1372 identified barriers of CommLink clients. Compared with clients with3 unresolved barriers to care, 42% (aRR: 1.42, 95% CI: 1.19, 1.68) more clients with 1-2 unresolved barriers, 44% (aRR: 1.44, 95% CI: 1.25, 1.66) more clients with all barriers resolved, and 54% (aRR: 1.54, 95% CI: 1.30, 1.81) more clients who had no identified barriers were initiated and retained on ART by 18months of diagnosis. CONCLUSIONS: To improve early ART initiation and retention among PLHIV diagnosed in community settings, HIV prevention programs should consider providing a package of peer-delivered linkage case management and treatment navigation services. Clients with multiple unresolved barriers to care measured as part of that package should be triaged for differentiated linkage and retention services. |
HIV testing and ART initiation among partners, family members, and high-risk associates of index clients participating in the CommLink linkage case management program, Eswatini, 2016-2018
Williams D , MacKellar D , Dlamini M , Byrd J , Dube L , Mndzebele P , Mazibuko S , Ao T , Pathmanathan I , Beyer A , Ryan C . PLoS One 2021 16 (12) e0261605 To help diagnose and initiate antiretroviral therapy (ART) for ≥95% of all persons living with HIV (PLHIV), the World Health Organization (WHO) recommends offering HIV testing to biological children, and sexual and needle-sharing partners of all PLHIV (index-client testing, ICT). Many index clients, however, do not identify or have contactable partners, and often substantially fewer than 95% of HIV-positive partners initiate ART soon after index testing. To help improve early HIV diagnosis and ART initiation in Eswatini (formerly Swaziland), we implemented a community-based HIV testing and peer-delivered, linkage case management program (CommLink) that provided ICT as part of a comprehensive package of WHO recommended linkage services. CommLink was implemented June 2015 -March 2017 (Phase I), and April 2017 -September 2018 (Phase II). In addition to biological children and partners, HIV testing was offered to adult family members (Phases I and II) and high-risk associates including friends and acquaintances (Phase II) of CommLink index clients. Compared with Phase I, in Phase II proportionally more CommLink clients disclosed their HIV-infection status to a partner or family member [94% (562/598) vs. 75% (486/652)], and had ≥1 partners, family members, or high-risk associates (contacts) tested through CommLink [41% (245/598) vs. 18% (117/652)]. Of 537 contacts tested, 253 (47%) were HIV-positive and not currently in HIV care, including 17% (17/100) of family members aged <15 years, 42% (78/187) of non-partner family members aged ≥15 years, 60% (73/121) of sexual partners, and 66% (85/129) of high-risk associates. Among 210 HIV-positive contacts aged ≥15 years who participated in CommLink, nearly all received recommended linkage services including treatment navigation (95%), weekly telephone follow-up (93%), and ≥3 counseling sessions (94%); peer counselors resolved 76% (306/404) of identified barriers to care (e.g., perceived wellness); and 200 (95%) initiated ART at a healthcare facility, of whom 196 (98%) received at least one antiretroviral refill before case-management services ended. To help countries achieve ≥90% ART coverage among all PLHIV, expanding ICT for adult family members and high-risk associates of index clients, and providing peer-delivered linkage case management for all identified PLHIV, should be considered. |
Tuberculosis treatment within differentiated service delivery models in global HIV/TB programming.
Tran CH , Moore BK , Pathmanathan I , Lungu P , Shah NS , Oboho I , Al-Samarrai T , Maloney SA , Date A , Boyd AT . J Int AIDS Soc 2021 24 Suppl 6 e25809 INTRODUCTION: Providing more convenient and patient-centred options for service delivery is a priority within global HIV programmes. These efforts improve patient satisfaction and retention and free up time for providers to focus on new HIV diagnoses or severe illness. Recently, the coronavirus disease 2019 (COVID-19) pandemic precipitated expanded eligibility criteria for these differentiated service delivery (DSD) models to decongest clinics and protect patients and healthcare workers. This has resulted in dramatic scale-up of DSD for antiretroviral therapy, cotrimoxazole and tuberculosis (TB) preventive treatment. While TB treatment among people living with HIV (PLHIV) has traditionally involved frequent, facility-based management, TB treatment can also be adapted within DSD models. Such adaptations could include electronic tools to ensure appropriate clinical management, treatment support, adherence counselling and adverse event (AE) monitoring. In this commentary, we outline considerations for DSD of TB treatment among PLHIV, building on best practices from global DSD model implementation for HIV service delivery. DISCUSSION: In operationalizing TB treatment in DSD models, we consider the following: what activity is being done, when or how often it takes place, where it takes place, by whom and for whom. We discuss considerations for various programme elements including TB screening and diagnosis; medication dispensing; patient education, counselling and support; clinical management and monitoring; and reporting and recording. General approaches include multi-month dispensing for TB medications during intensive and continuation phases of treatment and standardized virtual adherence and AE monitoring. Lastly, we provide operational examples of TB treatment delivery through DSD models, including a conceptual model and an early implementation experience from Zambia. CONCLUSIONS: COVID-19 has catalysed the rapid expansion of differentiated patient-centred service delivery for PLHIV. Expanding DSD models to include TB treatment can capitalize on existing platforms, while providing high-quality, routine treatment, follow-up and patient education and empowerment. |
Annual home-based HIV testing in the Chkw Health Demographic Surveillance System, Mozambique, 2014 to 2019: serial population-based survey evaluation
MacKellar D , Thompson R , Nelson R , Casavant I , Pals S , Bonzela J , Jaramillo A , Cardoso J , Ujamaa D , Tamele S , Chivurre V , Malimane I , Pathmanathan I , Heitzinger K , Wei S , Couto A , Vergara A . J Int AIDS Soc 2021 24 (7) e25762 INTRODUCTION: WHO recommends implementing a mix of community and facility testing strategies to diagnose 95% of persons living with HIV (PLHIV). In Mozambique, a country with an estimated 506,000 undiagnosed PLHIV, use of home-based HIV testing services (HBHTS) to help achieve the 95% target has not been evaluated. METHODS: HBHTS was provided at 20,000 households in the Chókwè Health Demographic Surveillance System (CHDSS), Mozambique, in annual rounds (R) during 2014 to 2019. Trends in prevalence of HIV infection, prior HIV diagnosis among PLHIV (diagnostic coverage), and undiagnosed HIV infection were assessed with three population-based surveys conducted in R1 (04/2014 to 04/2015), R3 (03/2016 to 12/2016), and R5 (04/2018 to 03/2019) of residents aged 15 to 59 years. Counts of patients aged ≥15 years tested for HIV in CHDSS healthcare facilities were obtained from routine reports. RESULTS: During 2014 to 2019, counsellors conducted 92,512 home-based HIV tests and newly diagnosed 3711 residents aged 15 to 59 years. Prevalence of HIV infection was stable (R1, 25.1%; R3 23.6%; R5 22.9%; p-value, 0.19). After the first two rounds (44,825 home-based tests; 31,717 facility-based tests), diagnostic coverage increased from 73.8% (95% CI 70.3 to 77.2) in R1 to 93.0% (95% CI 91.3 to 94.7) in R3, and prevalence of undiagnosed HIV infection decreased from 6.6% (95% CI 5.6 to 7.5) in R1 to 1.7% (95% CI 1.2 to 2.1) in R3. After two more rounds (32,226 home-based tests; 46,003 facility-based tests), diagnostic coverage was 95.4% (95% CI 93.7 to 97.1) and prevalence of undiagnosed HIV infection was 1.1% (95% CI 0.7 to 1.5) in R5. Prevalence of having last tested at home was 12.7% (95% CI 11.3 to 14.0) in R1, 45.2% (95% CI 43.4 to 47.0) in R3, and 41.4% (95% CI 39.5 to 43.2) in R5, and prevalence of having last tested at a healthcare facility was 45.3% (95% CI 43.3 to 47.3) in R1, 40.1% (95% CI 38.4 to 41.8) in R3, and 45.2% (95% CI 43.3 to 47.0) in R5. CONCLUSIONS: HBHTS successfully augmented facility-based testing to achieve HIV diagnostic coverage in a high-burden community of Mozambique. HBHTS should be considered in sub-Saharan Africa communities striving to diagnose 95% of persons living with HIV. |
Prevalence of Voluntary Medical Male Circumcision for HIV Infection Prevention - Chkw District, Mozambique, 2014-2019
Hines JZ , Thompson R , Toledo C , Nelson R , Casavant I , Pals S , Canda M , Bonzela J , Jaramillo A , Cardoso J , Ujamaa D , Tamele S , Chivurre V , Malimane I , Pathmanathan I , Heitzinger K , Wei S , Couto A , Come J , Vergara A , MacKellar D . MMWR Morb Mortal Wkly Rep 2021 70 (26) 942-946 Male circumcision is an important preventive strategy that confers lifelong partial protection (approximately 60% reduced risk) against heterosexually acquired HIV infection among males (1). In Mozambique, the prevalence of male circumcision was 51% when the voluntary medical male circumcision (VMMC) program began in 2009. The Mozambique Ministry of Health set a goal of 80% circumcision prevalence among males aged 10-49 years by 2019 (2). CDC analyzed data from five cross-sectional surveys of the Chókwè Health and Demographic Surveillance System (CHDSS) to evaluate progress toward the goal and guide ongoing needs for VMMC in Mozambique. During 2014-2019, circumcision prevalence among males aged 15-59 years increased 42%, from 50.1% to 73.5% (adjusted prevalence ratio [aPR] = 1.42). By 2019, circumcision prevalence among males aged 15-24 years was 90.2%, exceeding the national goal (2). However, circumcision prevalence among males in older age groups remained below 80%; prevalence was 62.7%, 54.5%, and 55.7% among males aged 25-34, 35-44, and 45-59 years, respectively. A multifaceted strategy addressing concerns about the safety of the procedure, cultural norms, and competing priorities that lead to lack of time could help overcome barriers to circumcision among males aged ≥25 years. |
Can isoniazid preventive therapy be scaled up rapidly Lessons learned in Kenya, 2014-2018
Weyenga H , Karanja M , Onyango E , Katana AK , Ng'Ang'A LW , Sirengo M , Ondondo RO , Wambugu C , Waruingi RN , Muthee RW , Masini E , Ngugi EW , Shah NS , Pathmanathan I , Maloney S , De Cock KM . Int J Tuberc Lung Dis 2021 25 (5) 367-372 BACKGROUND: TB is the leading cause of mortality among people living with HIV (PLHIV), for whom isoniazid preventive therapy (IPT) has a proven mortality benefit. Despite WHO recommendations, countries have been slow in scaling up IPT. This study describes processes, challenges, solutions, outcomes and lessons learned during IPT scale-up in Kenya.METHODS: We conducted a desk review and analyzed aggregated Ministry of Health (MOH) IPT enrollment data from 2014 to 2018 to determine trends and impact of program activities. We further analyzed IPT completion reports for patients initiated from 2015 to 2017 in 745 MOH sites in Nairobi, Central, Eastern and Western Kenya.RESULTS: IPT was scaled up 75-fold from 2014 to 2018: the number of PLHIV covered increased from 9,981 to 749,890. The highest percentage increases in the cumulative number of PLHIV on IPT were seen in the quarters following IPT pilot projects in 2014 (49%), national launch in 2015 (54%), and HIV treatment acceleration in 2016 (158%). Among 250,069 patients initiating IPT from 2015 to 2017, 97.5% completed treatment, 0.2% died, 0.8% were lost to follow-up, 1.0% were not evaluated, and 0.6% discontinued treatment.CONCLUSIONS: IPT can be scaled up rapidly and effectively among PLHIV. Deliberate MOH efforts, strong leadership, service delivery integration, continuous mentorship, stakeholder involvement, and accountability are critical to program success. |
Notes from the Field: COVID-19 Case Investigation and Contact Tracing Program - Spirit Lake Tribe, North Dakota, September-November 2020.
Matthias J , Charboneau T , Schaffer C , Rusten J , Whitmer S , de la Paz J , Dykstra J , Pathmanathan I , Stowell D . MMWR Morb Mortal Wkly Rep 2021 70 (14) 533-534 In late September 2020, the incidence of confirmed COVID-19* in North Dakota began increasing rapidly, from approximately 300 new cases per day to approximately 2,260 cases on November 13, 2020 (1). On October 20, the North Dakota Department of Health reported that contact tracing notification efforts were delayed. Because of the delay, COVID-19 patients were asked to notify their own contacts about potential exposure and encourage them to seek testing for SARS-CoV-2, the virus that causes COVID-19 (2). The Spirit Lake sovereign nation in east central North Dakota is home to approximately 7,500 members of the Spirit Lake Tribe. In response to increasing incidence of COVID-19 on the Spirit Lake Reservation, CDC assisted the Spirit Lake Tribe in building a tribally managed program for comprehensive COVID-19 case investigations, case notification, contact tracing, contact testing, and contact management to ensure timely implementation of these critical epidemic control measures. |
High coverage of antiretroviral treatment with annual home-based HIV testing, follow-up linkage services, and implementation of test and start: Findings from the Chkw Health Demographic Surveillance System, Mozambique, 2014-2019
Pathmanathan I , Nelson R , de Louvado A , Thompson R , Pals S , Casavant I , Antonio Cardoso MJ , Ujamaa D , Bonzela J , Mikusova S , Chivurre V , Tamele S , Sleeman K , Zhang G , Zeh C , Dobbs T , Vubil A , Auld A , Briggs-Hagen M , Vergara A , Couto A , MacKellar D . J Acquir Immune Defic Syndr 2020 86 (4) e97-e105 BACKGROUND: Early antiretroviral therapy (ART) is necessary for HIV epidemic control and depends on early diagnosis and successful linkage to care. Since 2014, annual household-based HIV testing and counselling (HBHTC) and linkage services have been provided through the Chókwè Health and Demographic Surveillance System (CHDSS) for residents testing HIV-positive in this high HIV-burden district. METHODS: District-wide Test and Start (T&S, ART for all people living with HIV [PLHIV]) began in August 2016, supported by systematic interventions to improve linkage to care and treatment. Annual rounds (R) of random household surveys were conducted to assess trends in population prevalence of ART use and viral load suppression (VLS; <1000 viral RNA copies/mL). RESULTS: Between R1 (April 2014-April 2015) and R5 (April 2018-Mar 2019), 46,090 (67.2%) of 68,620 residents aged 15-59 years were tested for HIV at home at least once, and 3,711 were newly diagnosed with HIV and provided linkage services. Population prevalence of current ART use among PLHIV increased from 65.0% to 87.5% between R1 and R5. ART population prevalence was lowest among men aged 25-34 (67.8%) and women 15-24 (78.0%) years, and highest among women aged 35-44 (93.6%) and 45-59 years (93.7%) in R5. VLS prevalence increased among all PLHIV aged 15-59 years from 52.0% in R1 to 78.3% in R5. DISCUSSION: Between 2014 and 2019, CHDSS residents surpassed the UNAIDS targets of 81% of PLHIV on ART and of those, ≥73% virally suppressed. This achievement supports the combination of efforts from HBHTC, support for linkage to care and treatment, and continued investments in T&S implementation. |
Implementing TB preventive treatment within differentiated HIV service delivery models in global programs
Boyd AT , Moore B , Shah M , Tran C , Kirking H , Cavanaugh JS , Al-Samarrai T , Pathmanathan I . Public Health Action 2020 10 (3) 104-110 Global HIV program stakeholders, including the US President's Emergency Plan for AIDS Relief (PEPFAR), are undertaking efforts to ensure that eligible people living with HIV (PLHIV) receiving antiretroviral treatment (ART) receive a course of TB preventive treatment (TPT). In PEPFAR programming, this effort may require providing TPT not only to newly diagnosed PLHIV as part of HIV care initiation, but also to treatment-experienced PLHIV stable on ART who may not have been previously offered TPT. TPT scale-up is occurring at the same time as a trend to provide more person-centered HIV care through differentiated service delivery (DSD). In DSD, PLHIV stable on ART may receive less frequent clinical follow-up or receive care outside the traditional clinic-based model. The misalignment between traditional delivery of TPT and care delivery in innovative DSD may require adaptations to TPT delivery practices for PLHIV. Adaptations include components of planning and operationalization of TPT in DSD, such as determination of TPT eligibility and TPT initiation, and clinical management of PLHIV while on TPT. A key adaptation is alignment of timing and location for TPT and ART prescribing, monitoring, and dispensing. Conceptual examples of TPT delivery in DSD may help program managers operationalize TPT in HIV care. |
Overcoming barriers to HIV care: Findings from a peer-delivered, community-based, linkage case management program (CommLink), Eswatini, 2015-2018
MacKellar D , Williams D , Dlamini M , Byrd J , Dube L , Mndzebele P , Mazibuko S , Pathmanathan I , Tilahun E , Ryan C . AIDS Behav 2020 25 (5) 1518-1531 To help persons living with HIV (PLHIV) in Eswatini initiate antiretroviral therapy (ART), the CommLink case-management program provided a comprehensive package of linkage services delivered by HIV-positive, peer counselors. Of 1250 PLHIV participants aged ≥ 15 years diagnosed in community settings, 75% reported one or more barriers to care (e.g., fearing stigmatization). Peer counselors helped resolve 1405 (65%) of 2166 identified barriers. During Test and Treat (October 2016-September 2018), the percentage of participants who initiated ART and returned for ≥ 1 antiretroviral refills was 92% overall (759/824); 99% (155/156) among participants without any identified barriers; 96% (544/564) among participants whose counselors helped resolve all or all but one barrier; and 58% (59/102) among participants who had ≥ 2 unresolved barriers to care. The success of CommLink is attributed, at least in part, to peer counselors who helped their clients avoid or at least temporarily resolve many well-known barriers to HIV care. |
Policies, practices and barriers to implementing tuberculosis preventive treatment-35 countries, 2017
Surie D , Interrante JD , Pathmanathan I , Patel MR , Anyalechi G , Cavanaugh JS , Kirking HL . Int J Tuberc Lung Dis 2019 23 (12) 1308-1313 BACKGROUND: Tuberculosis preventive treatment (TPT) reduces the development of tuberculosis (TB) disease and mortality in people living with human immunodeficiency virus (HIV) infection. Despite this known effectiveness, global uptake of TPT has been slow. We aimed to assess current status of TPT implementation in countries supported by the US President's Emergency Plan for AIDS Relief (PEPFAR).METHODS: We surveyed TB-HIV program staff at US Centers for Disease Control and Prevention (CDC) country offices in 42 PEPFAR-supported countries about current TPT policies, practices, and barriers to implementation. Surveys completed from July to December 2017 were analyzed.RESULTS: Of 42 eligible PEPFAR-supported countries, staff from 35 (83%) CDC country offices completed the survey. TPT was included in national guidelines in 33 (94%) countries, but only 21 (60%) reported nationwide programmatic TPT implementation. HIV programs led TPT implementation in 20/32 (63%) countries, but TB programs led drug procurement in 18/32 (56%) countries. Stock outs were frequent, as 21/28 (75%) countries reported at least one isoniazid stock out in the previous year.CONCLUSION: Despite widespread inclusion of TPT in guidelines, programmatic TPT implementation lags. Successful scale-up of TPT requires uninterrupted drug supply chains facilitated by improved leadership and coordination between HIV and TB programs. |
Peer-delivered linkage case management and same-day ART initiation for men and young persons with HIV infection - Eswatini, 2015-2017
MacKellar D , Williams D , Bhembe B , Dlamini M , Byrd J , Dube L , Mazibuko S , Ao T , Pathmanathan I , Auld AF , Faura P , Lukhele N , Ryan C . MMWR Morb Mortal Wkly Rep 2018 67 (23) 663-667 To achieve epidemic control of human immunodeficiency virus (HIV) infection, sub-Saharan African countries are striving to diagnose 90% of HIV infections, initiate and retain 90% of HIV-diagnosed persons on antiretroviral therapy (ART), and achieve viral load suppression* for 90% of ART recipients (90-90-90) (1). In Eswatini (formerly Swaziland), the country with the world's highest estimated HIV prevalence (27.2%), achieving 90-90-90 depends upon improving access to early ART for men and young adults with HIV infection, two groups with low ART coverage (1-3). Although community-based strategies test many men and young adults with HIV infection in Eswatini, fewer than one third of all persons who test positive in community settings enroll in HIV care within 6 months of diagnosis after receiving standard referral services (4,5). To evaluate the effectiveness of peer-delivered linkage case management(dagger) in improving early ART initiation for persons with HIV infection diagnosed in community settings in Eswatini, CDC analyzed data on 651 participants in CommLink, a community-based, mobile HIV-testing, point-of-diagnosis HIV care, and peer-delivered linkage case management demonstration project, and found that after diagnosis, 635 (98%) enrolled in care within a median of 5 days (interquartile range [IQR] = 2-8 days), and 541 (83%) initiated ART within a median of 6 days (IQR = 2-14 days), including 402 (74%) on the day of their first clinic visit (same-day ART). After expanding ART eligibility to all persons with HIV infection on October 1, 2016, 96% of 225 CommLink clients initiated ART, including 87% at their first clinic visit. Compared with women and adult clients aged >/=30 years, similar high proportions of men and persons aged 15-29 years enrolled in HIV care and received same-day ART. To help achieve 90-90-90 by 2020, the United States President's Emergency Plan for AIDS Relief (PEPFAR) is supporting the national scale-up of CommLink in Eswatini and recommending peer-delivered linkage case management as a potential strategy for countries to achieve >90% early enrollment in care and ART initiation after diagnosis of HIV infection (6). |
TB preventive therapy for people living with HIV: Key considerations for scale-up in resource-limited settings
Pathmanathan I , Ahmedov S , Pevzner E , Anyalechi G , Modi S , Kirking H , Cavanaugh JS . Int J Tuberc Lung Dis 2018 22 (6) 596-605 Tuberculosis (TB) is the leading cause of death for persons living with the human immunodeficiency virus (PLHIV). TB preventive therapy (TPT) works synergistically with, and independently of, antiretroviral therapy to reduce TB morbidity, mortality and incidence among PLHIV. However, although TPT is a crucial and costeffective component of HIV care for adults and children and has been recommended as an international standard of care for over a decade, it remains highly underutilized. If we are to end the global TB epidemic, we must address the significant reservoir of tuberculous infection, especially in those, such as PLHIV, who are most likely to progress to TB disease. To do so, we must confront the pervasive perception that barriers to TPT scale-up are insurmountable in resource-limited settings. Here we review available evidence to address several commonly stated obstacles to TPT scale-up, including the need for the tuberculin skin test, limited diagnostic capacity to reliably exclude TB disease, concerns about creating drug resistance, suboptimal patient adherence to therapy, inability to monitor for and prevent adverse events, a 'one size fits all' option for TPT regimen and duration, and uncertainty about TPT use in children, adolescents, and pregnant women. We also discuss TPT delivery in the era of differentiated care for PLHIV, how best to tackle advanced planning for drug procurement and supply chain management, and how to create an enabling environment for TPT scale-up success. |
High uptake of antiretroviral therapy among HIV-positive TB patients receiving co-located services in Swaziland
Pathmanathan I , Pasipamire M , Pals S , Dokubo EK , Preko P , Ao T , Mazibuko S , Ongole J , Dhlamini T , Haumba S . PLoS One 2018 13 (5) e0196831 BACKGROUND: Swaziland has the highest adult HIV prevalence and second highest rate of TB/HIV coinfection globally. Recently, the Ministry of Health and partners have increased integration and co-location of TB/HIV services, but the timing of antiretroviral therapy (ART) relative to TB treatment-a marker of program quality and predictor of outcomes-is unknown. METHODS: We conducted a retrospective analysis of programmatic data from 11 purposefully-sampled facilities to evaluate timely ART provision for HIV-positive TB patients enrolled on TB treatment between July-November 2014. Timely ART was defined as within two weeks of TB treatment initiation for patients with CD4<50/muL or missing, and within eight weeks otherwise. Descriptive statistics were estimated and logistic regression used to assess factors independently associated with timely ART. RESULTS: Of 466 HIV-positive TB patients, 51.5% were male, median age was 35 (interquartile range [IQR]: 29-42), and median CD4 was 137/muL (IQR: 58-268). 189 (40.6%) were on ART prior to, and five (1.8%) did not receive ART within six months of TB treatment initiation. Median time to ART after TB treatment initiation was 15 days (IQR: 14-28). Almost 90% started ART within eight weeks, and 45.5% of those with CD4<50/muL started within two weeks. Using thresholds for "timely ART" according to baseline CD4 count, 73.3% of patients overall received timely ART after TB treatment initiation. Patients with CD4 50-200/muL or >/=200/muL had significantly higher odds of timely ART than patients with CD4<50/muL, with adjusted odds ratios of 11.5 (95% confidence interval [CI]: 5.0-26.6) and 9.6 (95% CI: 4.6-19.9), respectively. TB cure or treatment completion was achieved by 71.1% of patients at six months, but this was not associated with timely ART. CONCLUSIONS: This study demonstrates the relative success of integrated and co-located TB/HIV services in Swaziland, and shows that timely ART uptake for HIV-positive TB patients can be achieved in resource-limited, but integrated settings. Gaps remain in getting patients with CD4<50/muL to receive ART within the recommended two weeks post TB treatment initiation. |
Delay in the Provision of Antiretroviral Therapy to HIV-infected TB Patients in Nigeria
Odume B , Pathmanathan I , Pals S , Dokubo K , Onotu D , Obinna O , Anand D , Okuma J , Okpokoro E , Dutt S , Ekong E , Chukwurah N , Dakum P , Tomlinson H . Univers J Public Health 2017 5 (5) 248-255 BACKGROUND: Nigeria has a high burden of HIV and tuberculosis (TB). To reduce TB-associated morbidity and mortality, the World Health Organization recommends that HIV-positive TB patients receive antiretroviral therapy (ART) within eight weeks of TB treatment initiation, or within two weeks if profoundly immunosuppressed (CD4<50 cell/μL). METHODS: TB and HIV clinical records from facilities in two Nigerian states between October 1(st), 2012 and September 30(th), 2013 were retrospectively reviewed to assess uptake and timing of ART initiation among HIV-positive TB patients. Healthcare workers were qualitatively interviewed to assess TB/HIV knowledge and barriers to timely ART. RESULTS: Data were abstracted from 4,810 TB patient records, of which 1,249 (26.0%) had HIV-positive or unknown HIV status documented, and the 574 (45.9%) HIV-positive TB patients were evaluated for timing of ART uptake relative to TB treatment. Among 484 (84.3%) HIV-positive TB patients not already on ART, 256 (52.9%, 95% CI: 45.0-60.8) were not initiated on ART during six months of TB treatment. 30.0% of 273 patients with a known CD4≥50cells/μL started ART within eight weeks, and 14.8% of 54 patients with a known CD4<50cells/μL started within the recommended two weeks. Only 42% of health workers interviewed reported knowing to interpret guidelines on when to initiate ART in HIV-positive TB patients based on CD4 cell count results. CD4 cell count significantly predicted timely ART uptake. CONCLUSION: A large proportion of HIV-positive TB patients were not initiated on ART early or even at all during TB treatment. Retraining of staff, and interventions to strengthen referral systems should be implemented to ensure timely provision of ART among HIV-positive TB patients in Nigeria. |
Rolling out Xpert MTB/RIF for TB detection in HIV-infected populations: An opportunity for systems strengthening
Pathmanathan I , Date A , Coggin WL , Nkengasong J , Piatek AS , Alexander H . Afr J Lab Med 2017 6 (2) BACKGROUND: To eliminate preventable deaths, disease and suffering due to tuberculosis (TB), improved diagnostic capacity is critical. The Cepheid Xpert(R) MTB/RIF assay is recommended by the World Health Organization as the initial diagnostic test for people with suspected HIV-associated TB. However, despite high expectations, its scale-up in real-world settings has faced challenges, often due to the systems that support it. OPPORTUNITIES FOR SYSTEM STRENGTHENING: In this commentary we discuss needs and opportunities for systems strengthening to support widespread scale-up of Xpert(R) MTB/RIF as they relate to each step within the TB diagnostic cascade, from finding presumptive patients, to collecting, transporting and testing sputum specimens, to reporting and receiving results, to initiating and monitoring treatment and, ultimately, to ensuring successful and timely treatment and cure. Investments in evidence-based interventions at each step along the cascade and within the system as a whole will augment not only the utility of Xpert(R) MTB/RIF, but also the successful implementation of future diagnostic tests. CONCLUSION: Xpert(R) MTB/RIF will only improve patient outcomes if optimally implemented within the context of strong TB programs and systems. Roll-out of this technology to people living with HIV and others in resource-limited settings offers the opportunity to leverage current TB and HIV laboratory, diagnostic and programmatic investments, while also addressing challenges and strengthening coordination between laboratory systems, laboratory-program interfaces, and TB-HIV program interfaces. If successful, the benefits of this tool could extend beyond progress towards global End TB Strategy goals, to improve system-wide capacity for global disease detection and control. |
Trends in prevalence of advanced HIV disease at antiretroviral therapy enrollment - 10 countries, 2004-2015
Auld AF , Shiraishi RW , Oboho I , Ross C , Bateganya M , Pelletier V , Dee J , Francois K , Duval N , Antoine M , Delcher C , Desforges G , Griswold M , Domercant JW , Joseph N , Deyde V , Desir Y , Van Onacker JD , Robin E , Chun H , Zulu I , Pathmanathan I , Dokubo EK , Lloyd S , Pati R , Kaplan J , Raizes E , Spira T , Mitruka K , Couto A , Gudo ES , Mbofana F , Briggs M , Alfredo C , Xavier C , Vergara A , Hamunime N , Agolory S , Mutandi G , Shoopala NN , Sawadogo S , Baughman AL , Bashorun A , Dalhatu I , Swaminathan M , Onotu D , Odafe S , Abiri OO , Debem HH , Tomlinson H , Okello V , Preko P , Ao T , Ryan C , Bicego G , Ehrenkranz P , Kamiru H , Nuwagaba-Biribonwoha H , Kwesigabo G , Ramadhani AA , Ng'wangu K , Swai P , Mfaume M , Gongo R , Carpenter D , Mastro TD , Hamilton C , Denison J , Wabwire-Mangen F , Koole O , Torpey K , Williams SG , Colebunders R , Kalamya JN , Namale A , Adler MR , Mugisa B , Gupta S , Tsui S , van Praag E , Nguyen DB , Lyss S , Le Y , Abdul-Quader AS , Do NT , Mulenga M , Hachizovu S , Mugurungi O , Barr BAT , Gonese E , Mutasa-Apollo T , Balachandra S , Behel S , Bingham T , Mackellar D , Lowrance D , Ellerbrock TV . MMWR Morb Mortal Wkly Rep 2017 66 (21) 558-563 Monitoring prevalence of advanced human immunodeficiency virus (HIV) disease (i.e., CD4+ T-cell count <200 cells/muL) among persons starting antiretroviral therapy (ART) is important to understand ART program outcomes, inform HIV prevention strategy, and forecast need for adjunctive therapies.*,dagger, section sign To assess trends in prevalence of advanced disease at ART initiation in 10 high-burden countries during 2004-2015, records of 694,138 ART enrollees aged ≥15 years from 797 ART facilities were analyzed. Availability of national electronic medical record systems allowed up-to-date evaluation of trends in Haiti (2004-2015), Mozambique (2004-2014), and Namibia (2004-2012), where prevalence of advanced disease at ART initiation declined from 75% to 34% (p<0.001), 73% to 37% (p<0.001), and 80% to 41% (p<0.001), respectively. Significant declines in prevalence of advanced disease during 2004-2011 were observed in Nigeria, Swaziland, Uganda, Vietnam, and Zimbabwe. The encouraging declines in prevalence of advanced disease at ART enrollment are likely due to scale-up of testing and treatment services and ART-eligibility guidelines encouraging earlier ART initiation. However, in 2015, approximately a third of new ART patients still initiated ART with advanced HIV disease. To reduce prevalence of advanced disease at ART initiation, adoption of World Health Organization (WHO)-recommended "treat-all" guidelines and strategies to facilitate earlier HIV testing and treatment are needed to reduce HIV-related mortality and HIV incidence. |
Incidence and predictors of tuberculosis among HIV-infected adults after initiation of antiretroviral therapy in Nigeria, 2004-2012
Pathmanathan I , Dokubo EK , Shiraishi RW , Agolory SG , Auld AF , Onotu D , Odafe S , Dalhatu I , Abiri O , Debem HC , Bashorun A , Ellerbrock T . PLoS One 2017 12 (3) e0173309 BACKGROUND: Nigeria had the most AIDS-related deaths worldwide in 2014 (170,000), and 46% were associated with tuberculosis (TB). Although treatment of people living with HIV (PLHIV) with antiretroviral therapy (ART) reduces TB-associated morbidity and mortality, incident TB can occur while on ART. We estimated incidence and characterized factors associated with TB after ART initiation in Nigeria. METHODS: We analyzed retrospective cohort data from a nationally representative sample of adult patients on ART. Data were abstracted from 3,496 patient records, and analyses were weighted and controlled for a complex survey design. We performed domain analyses on patients without documented TB disease and used a Cox proportional hazard model to assess factors associated with TB incidence after ART. RESULTS: At ART initiation, 3,350 patients (95.8%) were not receiving TB treatment. TB incidence after ART initiation was 0.57 per 100 person-years, and significantly higher for patients with CD4<50/muL (adjusted hazard ratio [AHR]: 4.2, 95% confidence interval [CI]: 1.4-12.7) compared with CD4≥200/muL. Patients with suspected but untreated TB at ART initiation and those with a history of prior TB were more likely to develop incident TB (AHR: 12.2, 95% CI: 4.5-33.5 and AHR: 17.6, 95% CI: 3.5-87.9, respectively). CONCLUSION: Incidence of TB among PLHIV after ART initiation was low, and predicted by advanced HIV, prior TB, and suspected but untreated TB. Study results suggest a need for improved TB screening and diagnosis, particularly among high-risk PLHIV initiating ART, and reinforce the benefit of early ART and other TB prevention efforts. |
Knowledge of human immunodeficiency virus status and seropositivity after a recently negative test in Malawi
Pathmanathan I , Lederer P , Shiraishi RW , Wadonda-Kabondo N , Date A , Matatiyo B , Dokubo EK . Open Forum Infect Dis 2017 4 (1) ofw231 Background. Awareness of human immunodeficiency virus (HIV) status among all people with HIV is critical for epidemic control. We aimed to assess accurate knowledge of HIV status, defined as concordance with serosurvey test results from the 2010 Malawi Demographic Health Survey (MDHS), and to identify risk factors for seropositivity among adults (aged 15-49) reporting a most recently negative test within 12 months. Methods. Data were analyzed from the 2010 MDHS. A logistic regression model was constructed to determine factors independently associated with HIV seropositivity after a recently negative test. All analyses controlled for the survey's complex design. Results. A total of 11 649 adults tested for HIV during this MDHS reported ever being sexually active. Among these, HIV seroprevalence was 12.0%, but only 61.7% had accurate knowledge of their status. Forty percent (40.3%; 95% confidence interval [CI], 36.8-43.8) of seropositive respondents reported a most recently negative test. Of those reporting that this negative test was within 12 months (n = 3630), seroprevalence was 7.2% for women (95% CI, 5.7-9.2), 5.2% for men (95% CI, 3.9-6.9), higher in the South, and higher in rural areas for men. Women with higher education and men in the richest quintile were at higher risk. More than 1 lifetime union was significantly associated with recent HIV infection, whereas never being married was significantly protective. Conclusions. Self-reported HIV status based on prior test results can underestimate seroprevalence. These results highlight the need for posttest risk assessment and support for people who test negative for HIV and repeat testing in people at high risk for HIV infection. |
Addressing tuberculosis in differentiated care provision for people living with HIV
Pathmanathan I , Pevzner E , Cavanaugh J , Nelson L . Bull World Health Organ 2017 95 (1) 3 Despite advances in prevention, diagnosis and treatment of tuberculosis and human immunodeficiency virus (HIV), tuberculosis remains the leading cause of death and illness among people living with HIV. In 2015, an estimated 1.2 million of the people who developed tuberculosis disease worldwide were HIV positive, and tuberculosis was the direct cause of at least one third of HIV-related deaths.1 The 2015 “Treat All” strategy requires that everyone with HIV is offered antiretroviral therapy (ART) as soon as they are diagnosed. By treating HIV infections earlier, this strategy should mitigate the HIV-associated tuberculosis epidemic, but it alone is not sufficient to eliminate preventable tuberculosis suffering and deaths among people living with HIV.2 The 2016 World Health Organization (WHO) guidelines recommend differentiated HIV service delivery, which is intended to facilitate the “Treat All” strategy by tailoring services to the differing needs of individuals.3 As HIV programmes adopt these WHO guidelines, tuberculosis also needs to be addressed.3 |
Insights from the Ebola response to address HIV and tuberculosis
Pathmanathan I , Pevzner ES , Marston BJ , Hader SL , Dokubo EK . Lancet Infect Dis 2016 16 (3) 276-278 Although widespread Ebola transmission has been controlled in west Africa, the indirect consequences of the recent epidemic could be yet to fully manifest. In the past 2 years, management of other diseases in Sierra Leone, Liberia and Guinea has been limited as resources were focused on the Ebola response. HIV and tuberculosis programmes were among those affected by workforce depletion, closure of health facilities, and interrupted service and supply chains, leading to a worsening of the region’s HIV and tuberculosis epidemics.1–3 These epidemics were major public health problems in those three countries before the Ebola outbreak: in 2013, 11,200 people died of AIDS-related causes and 7,900 died from tuberculosis. Fewer than two thirds of tuberculosis cases were diagnosed and only 30–57% of eligible people living with HIV were on antiretroviral therapy (ART) – largely due to health system challenges including uncoordinated mobilisation of scarce resources, insufficient staff and laboratory capacity, and inadequate data collection and management.4–7 | Although the Ebola crisis exacerbated many of these problems, it also provides an unprecedented opportunity to assess and address pre-existing and anticipated health challenges in the worst-affected countries. Although there have been multiple calls to heed lessons from the global HIV and tuberculosis responses when addressing Ebola,8–10 we now have a unique chance to transition several elements of the Ebola response to rebuild and strengthen HIV and tuberculosis systems in the region, while sustaining capacity for emergency response. |
Rapid assessment of Ebola infection prevention and control needs - six districts, Sierra Leone, October 2014
Pathmanathan I , O'Connor KA , Adams ML , Rao CY , Kilmarx PH , Park BJ , Mermin J , Kargbo B , Wurie AH , Clarke KR . MMWR Morb Mortal Wkly Rep 2014 63 (49) 1172-4 As of October 31, 2014, the Sierra Leone Ministry of Health and Sanitation had reported 3,854 laboratory-confirmed cases of Ebola virus disease (Ebola) since the outbreak began in May 2014; 199 (5.2%) of these cases were among health care workers. Ebola infection prevention and control (IPC) measures are essential to interrupt Ebola virus transmission and protect the health workforce, a population that is disproportionately affected by Ebola because of its increased risk of exposure yet is essential to patient care required for outbreak control and maintenance of the country's health system at large. To rapidly identify existing IPC resources and high priority outbreak response needs, an assessment by CDC Ebola Response Team members was conducted in six of the 14 districts in Sierra Leone, consisting of health facility observations and structured interviews with key informants in facilities and government district health management offices. Health system gaps were identified in all six districts, including shortages or absence of trained health care staff, personal protective equipment (PPE), safe patient transport, and standardized IPC protocols. Based on rapid assessment findings and key stakeholder input, priority IPC actions were recommended. Progress has since been made in developing standard operating procedures, increasing laboratory and Ebola treatment capacity and training the health workforce. However, further system strengthening is needed. In particular, a successful Ebola outbreak response in Sierra Leone will require an increase in coordinated and comprehensive district-level IPC support to prevent ongoing Ebola virus transmission. |
Provision of antiretroviral therapy for HIV-positive TB patients - 19 countries, sub-Saharan Africa, 2009-2013
Dokubo EK , Baddeley A , Pathmanathan I , Coggin W , Firth J , Getahun H , Kaplan J , Date A . MMWR Morb Mortal Wkly Rep 2014 63 (47) 1104-7 Considerable progress has been made in the provision of life-saving antiretroviral therapy (ART) for persons with human immunodeficiency virus (HIV) infection worldwide, resulting in an overall decrease in HIV incidence and acquired immunodeficiency syndrome (AIDS)-related mortality. In the strategic scale-up of HIV care and treatment programs, persons with HIV and tuberculosis (TB) are a priority population for receiving ART. TB is the leading cause of death among persons living with HIV in sub-Saharan Africa and remains a potential risk to the estimated 35 million persons living with HIV globally. Of the 9 million new cases of TB disease globally in 2013, an estimated 1.1 million (13%) were among persons living with HIV; of the 1.5 million deaths attributed to TB in 2013, a total of 360,000 (24%) were among persons living with HIV. ART reduces the incidence of HIV-associated TB disease, and early initiation of ART after the start of TB treatment reduces progression of HIV infection and death among HIV-positive TB patients. To assess the progress in scaling up ART provision among HIV-positive TB patients in 19 countries in sub-Saharan Africa with high TB and HIV burdens, TB and HIV data collected by the World Health Organization (WHO) were reviewed. The results found that the percentage of HIV-positive TB patients receiving ART increased from 37% in 2010 to 69% in 2013. However, many TB cases among persons who are HIV-positive go unreported, and only 38% of the estimated number of HIV-positive new TB patients received ART in 2013. Although progress has been made, the combination of TB and HIV continues to pose a threat to global health, particularly in sub-Saharan Africa. |
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