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1.
AIDS Care ; 28(7): 898-903, 2016 07.
Article in English | MEDLINE | ID: mdl-27098208

ABSTRACT

INTRODUCTION: Médecins Sans Frontières supports human immunodeficiency virus (HIV)-infected youth, aged 12-25 years, at a clinic in Khayelitsha, South Africa. Patients are enrolled in youth clubs, and provided with a virtual chat room, using the cell-phone-based social networking platform, MXit, to support members between monthly/bimonthly club meetings. The acceptability and uptake of MXit was assessed. METHODS: MXit was facilitated by lay counsellors, was password protected, and participants could enter and leave at will. Club members were asked to complete self-administered questionnaires and participate in two focus-group discussions. RESULTS AND DISCUSSION: In total, 60 club members completed the questionnaire, and 12 participated in the focus groups. Fifty-eight percentage were aged 23-25 years, 63% were female and 83% had a cell phone. Sixty percentage had used MXit before, with 38% having used it in the past month. Sixty-five percentage were aware of the chat-room and 39% knew how to access it. Thirty-four percentage used the chat-room at least once, 20% had visited the chat-room in the past month, and 29% had used MXit to have private conversations with other club members. Fifty-seven percentage used the chat-room to get advice, and 84% of all respondents felt that offering a service outside the youth club meetings was important and would like to see one to continue. The cost of using social media platforms was an issue with some, as well as the need for anonymity. Preference for other platforms, logistical obstacles, or loss of interest contributed to non-use. CONCLUSIONS: Reported usage of the MXit chat-room was low, but participants indicated acceptance of the programme and their desire to interact with their peers through social media. Suggestions to improve the platform included accessible chat histories, using more popular platforms such as Facebook or WhatsApp, and to have topical discussions where pertinent information for youth is provided.


Subject(s)
HIV Infections , Self-Help Groups/organization & administration , Social Networking , Female , HIV Infections/epidemiology , HIV Infections/psychology , HIV Infections/rehabilitation , Health Services Accessibility , Humans , Information Dissemination/methods , Interpersonal Relations , Male , Motivation , Peer Group , Social Support , South Africa/epidemiology , Surveys and Questionnaires , User-Computer Interface , Young Adult
2.
Trop Med Int Health ; 20(4): 448-54, 2015 Apr.
Article in English | MEDLINE | ID: mdl-25565430

ABSTRACT

OBJECTIVE: To describe Ebola cases in the district Ebola management centre of in Kailahun, a remote rural district of Sierra Leone, in terms of geographic origin, patient and hospitalisation characteristics, treatment outcomes and time from symptom onset to admission. METHODS: Data of all Ebola cases from June 23rd to October 5th 2014 were reviewed. Ebola was confirmed by reverse-transcriptase-polymerase-chain-reaction assay. RESULTS: Of 489 confirmed cases (51% male, median age 28 years), 166 (34%) originated outside Kailahun district. Twenty-eight (6%) were health workers: 2 doctors, 11 nurses, 2 laboratory technicians, 7 community health workers and 6 other cadres. More than 50% of patients had fever, headache, abdominal pain, diarrhoea/vomiting. An unusual feature was cough in 40%. Unexplained bleeding was reported in 5%. Outcomes for the 489 confirmed cases were 227 (47%) discharges, 259 (53%) deaths and 3 transfers. Case fatality in health workers (68%) was higher than other occupations (52%, P = 0.05). The median community infectivity time was 6.5 days for both general population and health workers (P = 0.4). CONCLUSIONS: One in three admitted cases originated outside Kailahun district due to limited national access to Ebola management centres - complicating contact tracing, safe burial and disinfection measures. The comparatively high case fatality among health workers requires attention. The community infectivity time needs to be reduced to prevent continued transmission.


Subject(s)
Epidemics/statistics & numerical data , Health Personnel , Hemorrhagic Fever, Ebola/epidemiology , Patient Admission , Rural Population , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Hemorrhagic Fever, Ebola/complications , Hemorrhagic Fever, Ebola/therapy , Humans , Infant , Male , Middle Aged , Reverse Transcriptase Polymerase Chain Reaction , Sierra Leone/epidemiology , Young Adult
3.
Euro Surveill ; 20(50)2015.
Article in English | MEDLINE | ID: mdl-26727011

ABSTRACT

Prevention of nosocomial Ebola virus (EBOV) infection among patients admitted to an Ebola management centre (EMC) is paramount. Current Médecins Sans Frontières (MSF) guidelines recommend classifying admitted patients at triage into suspect and highly-suspect categories pending laboratory confirmation. We investigated the performance of the MSF triage system to separate patients with subsequent EBOV-positive laboratory test (true-positive admissions) from patients who were initially admitted on clinical grounds but subsequently tested EBOV-negative (false-positive admissions). We calculated standard diagnostic test statistics for triage allocation into suspect or highly-suspect wards (index test) and subsequent positive or negative laboratory results (reference test) among 433 patients admitted into the MSF EMC Kailahun, Sierra Leone, between 1 July and 30 September 2014. 254 (59%) of admissions were classified as highly-suspect, the remaining 179 (41%) as suspect. 276 (64%) were true-positive admissions, leaving 157 (36.3%) false-positive admissions exposed to the risk of nosocomial EBOV infection. The positive predictive value for receiving a positive laboratory result after being allocated to the highly-suspect ward was 76%. The corresponding negative predictive value was 54%. Sensitivity and specificity were 70% and 61%, respectively. Results for accurate patient classification were unconvincing. The current triage system should be changed. Whenever possible, patients should be accommodated in single compartments pending laboratory confirmation. Furthermore, the initial triage step on whether or not to admit a patient in the first place must be improved. What is ultimately needed is a point-of-care EBOV diagnostic test that is reliable, accurate, robust, mobile, affordable, easy to use outside strict biosafety protocols, providing results with quick turnaround time.


Subject(s)
Cross Infection/prevention & control , Disease Outbreaks/prevention & control , Ebolavirus/genetics , Hemorrhagic Fever, Ebola/prevention & control , Hospitalization/statistics & numerical data , Triage/organization & administration , Adolescent , Adult , Ebolavirus/pathogenicity , Female , Hemorrhagic Fever, Ebola/epidemiology , Hemorrhagic Fever, Ebola/virology , Humans , Male , Point-of-Care Systems , Program Evaluation , Sierra Leone/epidemiology , Young Adult
4.
J Acquir Immune Defic Syndr ; 92(4): 273-280, 2023 04 01.
Article in English | MEDLINE | ID: mdl-36729553

ABSTRACT

BACKGROUND: Among children in Southern Africa severe immune suppression (SIS) has declined, but most continue to initiate antiretroviral therapy (ART) with SIS. SETTING: Using data from South Africa, we describe SIS at ART start and on ART between 2007 and 2020, among children <5 years with a CD4%/cell count at ART start and ≥1 subsequent measure. METHODS: Gap in care was defined as >9 months without a recorded visit. We defined SIS according to age and CD4%/cell count. A multistate model was used to estimate transition probabilities between 5 states: SIS on ART; Stable, not SIS; Early Gap, commencing <9 months from ART start; Late Gap, commencing ≥9 months on ART; and Death. RESULTS: Among 2536 children, 70% had SIS at ART start, and 36% experienced SIS on ART. An increasing proportion were age <1 year at ART initiation (2007-2009: 43% to 2013-2020: 55%). Increasingly, SIS on ART occurred after a gap, in those with SIS on ART for >1 year, and after a period of unknown immune status. Later year of ART initiation was associated with reduced transition from SIS on ART to Stable. Infants and those initiating ART with SIS were more likely to transition from Stable to SIS. Viremia strongly predicted death from both the on ART states. CONCLUSIONS: Increasingly SIS occurred among ART-experienced children. Those starting ART with SIS and during infancy remained especially vulnerable to SIS once on treatment. Managing ART in these children may be more complex and further reducing AIDS-related mortality is likely to remain challenging.


Subject(s)
Anti-HIV Agents , HIV Infections , Infant , Humans , Child , HIV Infections/drug therapy , South Africa/epidemiology , Anti-HIV Agents/therapeutic use , Prevalence , Africa, Southern , CD4 Lymphocyte Count
5.
AIDS ; 37(3): 513-522, 2023 03 01.
Article in English | MEDLINE | ID: mdl-36695361

ABSTRACT

OBJECTIVE: Despite improved access to antiretroviral therapy (ART) for people with HIV (PWH), HIV continues to contribute considerably to morbidity and mortality. Increasingly, advanced HIV disease (AHD) is found among PWH who are ART-experienced. DESIGN: Using a multi-state model we examined associations between engagement with care and AHD on ART in South Africa. METHODS: Using data from IeDEA Southern Africa, we included PWH from South Africa, initiating ART from 2004 to 2017 aged more than 5 years with a CD4+ cell count at ART start and at least one subsequent measure. We defined a gap as no visit for at least 18 months. Five states were defined: 'AHD on ART' (CD4+ cell count <200 cells/µl), 'Clinically Stable on ART' (CD4+ cell count ≥200 or if no CD4+ cell count, viral load <1000 copies/ml), 'Early Gap' (commencing ≤18 months from ART start), 'Late Gap' (commencing >18 months from ART start) and 'Death'. RESULTS: Among 32 452 PWH, men and those aged 15-25 years were more likely to progress to unfavourable states. Later years of ART start were associated with a lower probability of transitioning from AHD to clinically stable, increasing the risk of death following AHD. In stratified analyses, those starting ART with AHD in later years were more likely to re-engage in care with AHD following a gap and to die following AHD on ART. CONCLUSION: In more recent years, those with AHD on ART were more likely to die, and AHD at re-engagement in care increased. To further reduce HIV-related mortality, efforts to address the challenges facing these more vulnerable patients are needed.


Subject(s)
Anti-HIV Agents , HIV Infections , Male , Humans , South Africa/epidemiology , Antiretroviral Therapy, Highly Active/methods , Anti-Retroviral Agents/therapeutic use , CD4 Lymphocyte Count , Anti-HIV Agents/therapeutic use
6.
Lancet HIV ; 9(3): e150-e159, 2022 03.
Article in English | MEDLINE | ID: mdl-35245507

ABSTRACT

BACKGROUND: The identification and appropriate management of people with advanced HIV disease is a key component in the HIV response. People with HIV who are hospitalised are at a higher risk of death, a risk that might persist after discharge. The aims of this study were to estimate the frequency of negative post-discharge outcomes, and to determine risk factors for such outcomes in people with HIV. METHODS: Using a broad search strategy combining terms for hospital discharge and HIV infection, we searched MEDLINE via PubMed and Embase from Jan 1, 2003 to Nov 30, 2021 to identify studies reporting outcomes among people with HIV following discharge from hospital. We estimated pooled proportions of readmissions and deaths after hospital discharge using random-effects models. We also did subgroup analyses by setting, region, duration of follow-up, and advanced HIV status at admission, and sensitivity analyses to assess heterogeneity. FINDINGS: We obtained data from 29 cohorts, which reported outcomes of people living with HIV after hospital discharge in 92 781 patients. The pooled proportion of patients readmitted to hospital after discharge was 18·8% (95% CI 15·3-22·3) and 14·1% (10·8-17·3) died post-discharge. In sensitivity analyses, no differences were identified in the proportion of patients who were readmitted or died when comparing studies published before 2016 with those published after 2016. Post-discharge mortality was higher in studies from Africa (23·1% [16·5-29·7]) compared with the USA (7·5% [4·4-10·6]). For studies that reported both post-discharge mortality and readmission, the pooled proportion of patients who had this composite adverse outcome was 31·7% (23·9-39·5). Heterogeneity was moderate, and largely explained by patient status and linkage to care. Reported risk factors for readmission included low CD4 cell count at admission, longer length of stay, discharge against medical advice, and not linking to care following discharge; inpatient treatment with antiretroviral therapy (ART) during hospitalisation was protective of post-discharge mortality. INTERPRETATION: More than a quarter of patients with HIV had an adverse outcome after hospital discharge with no evidence of improvement in the past 15 years. This systematic review highlights the importance of ensuring post-discharge referral and appropriate management, including ART, to reduce mortality and readmission to hospital among this group of high-risk patients. FUNDING: Bill & Melinda Gates Foundation. TRANSLATIONS: For the French and Spanish translations of the abstract see Supplementary Materials section.


Subject(s)
HIV Infections , Patient Discharge , Aftercare , HIV Infections/drug therapy , HIV Infections/epidemiology , Hospitalization , Hospitals , Humans
7.
AIDS ; 35(4): 625-632, 2021 03 15.
Article in English | MEDLINE | ID: mdl-33252479

ABSTRACT

OBJECTIVE: To measure mortality incidence rates and incidence rate ratios (IRR) in adolescents and youth living with perinatally acquired HIV (YPHIV) compared with those living with nonperinatally acquired HIV (YNPHIV), by region, by sex, and during the ages of 10-14, 15-19, and 20-24 years in IeDEA. DESIGN AND METHODS: All those with a confirmed HIV diagnosis, antiretroviral therapy (ART)-naive at enrollment, and who have post-ART follow-up while aged 10-24 years between 2004 and 2016 were included. We estimated post-ART mortality incidence rates and 95% confidence intervals (95% CI) per 100 person-years for YPHIV (enrolled into care <10 years of age) and YNPHIV (enrolled ≥10 years and <25 years). We estimate mortality IRRs in a negative binomial regression model, adjusted for sex, region time-varying age, CD4+ cell count at ART initiation (<350 cells/µl, ≥350 cells/µl, unknown), and time on ART (<12 and ≥12 months). RESULTS: Overall, 104 846 adolescents and youth were included: 21 340 (20%) YPHIV (50% women) and 83 506 YNPHIV (80% women). Overall mortality incidence ratios were higher among YNPHIV (incidence ratio: 2.3/100 person-years; 95% CI: 2.2-2.4) compared with YPHIV (incidence ratio: 0.7/100 person-years; 95% CI: 0.7-0.8). Among adolescents aged 10-19 years, mortality was lower among YPHIV compared with YNPHIV (all IRRs <1, ranging from 0.26, 95% CI: 0.13-0.49 in 10-14-year-old boys in the Asia-Pacific to 0.51, 95% CI: 0.30-0.87 in 15-19-year-old boys in West Africa). CONCLUSION: We report substantial amount of deaths occurring during adolescence. Mortality was significantly higher among YNPHIV compared to YPHIV. Specific interventions including HIV testing and early engagement in care are urgently needed to improve survival among YNPHIV.


Subject(s)
HIV Infections , Adolescent , Adult , Africa, Western , Age Factors , Asia , CD4 Lymphocyte Count , Child , Female , HIV Infections/drug therapy , Humans , Infant , Male , Young Adult
8.
Pediatr Infect Dis J ; 39(9): 843-848, 2020 09.
Article in English | MEDLINE | ID: mdl-32433224

ABSTRACT

BACKGROUND: Few attempts have been made to monitor progress toward HIV diagnosis and antiretroviral treatment (ART) coverage targets in children, and the impact that ART and prevention of mother-to-child transmission (PMTCT) programs have had on pediatric HIV incidence and mortality. METHODS: A multiparameter evidence synthesis approach was adopted to integrate South African pediatric HIV data sources. A previously developed model of HIV in South Africa was calibrated to household survey HIV prevalence data, routine antibody testing data, data on numbers and ages of children on ART, vital registration data and data on HIV diagnosis at death. The impact of ART and PMTCT was estimated by comparing validated model outputs against model predictions of the trends that would have been expected in the absence of ART and PMTCT. RESULTS: By mid-2018, the model estimated that 75.2% (95% CI: 73.9%-76.8%) of HIV-positive children were diagnosed, substantially lower than the corresponding estimates in HIV-positive adults (91.0%). ART coverage in children in 2018 (51.2%, 95% CI: 49.4%-52.7%) was also lower than that in adults (62.0%). In 2017-2018, the numbers of new cases of mother-to-child transmission and pediatric AIDS deaths were reduced by 84% and 94%, respectively, relative to what would have been expected in the absence of interventions, but reductions in mortality were driven largely by PMTCT. CONCLUSIONS: Although levels of AIDS mortality in children have declined dramatically in South Africa, this has mostly been due to successful PMTCT programs, and progress toward the 90-90-90 targets appears relatively poor when compared with that in adults.


Subject(s)
Acquired Immunodeficiency Syndrome/epidemiology , Acquired Immunodeficiency Syndrome/mortality , Mortality/trends , Acquired Immunodeficiency Syndrome/diagnosis , Adolescent , Child , Child, Preschool , Humans , Incidence , Infant , Infant, Newborn , Infectious Disease Transmission, Vertical/prevention & control , Models, Theoretical , Prevalence , South Africa/epidemiology
9.
J Int AIDS Soc ; 23(10): e25617, 2020 10.
Article in English | MEDLINE | ID: mdl-33034417

ABSTRACT

INTRODUCTION: Evaluating outcomes of paediatric patients with HIV provides crucial data for clinicians and policymakers. We analysed mortality and clinical events rates among children, adolescents, and youth with perinatally acquired HIV (PHIV) aged 0 to 24 years stratified by time-varying age and CD4, before and after antiretroviral therapy (ART), in the paediatric IeDEA multiregional collaboration (East, West, Central and Southern Africa, Asia-Pacific, and Central/South America and the Caribbean). METHODS: ART-naïve children with HIV enrolled before age 10 (proxy for perinatal infection) at IeDEA sites between 2004 and 2016, with ≥1 CD4 measurement during follow-up were included. We estimated incidence rates (IR) and 95% confidence intervals (95% CI) of mortality and first occurrence of WHO-4 and WHO-3 events, excluding tuberculosis, during person-years (PY) spent within different age (<2, 2 to 4, 5 to 9, 10 to 14, 15 to 19, 20 to 24) and CD4 (percent when <5 years [<15%, 15% to 24%, ≥25%]; count when ≥5 years [<200, 200 to 499, ≥500 cells/µL]) strata. We used linear mixed models to predict CD4 evolution, with trends modelled by region. RESULTS: In the pre-ART period, 49 137 participants contributed 51 966 PY of follow-up (median enrolment age: 3.9 years). The overall pre-ART IRs were 2.8/100 PY (95% CI: 2.7 to 2.9) for mortality, 3.3/100 PY (95% CI: 3.0 to 3.5) for first occurrence of a WHO-4 event, and 7.0/100 PY (95% CI: 6.7 to 7.4) for first occurrence of a WHO-3 event. Lower CD4 and younger age strata were associated with increased rates of both mortality and first occurrence of a clinical event. In the post-ART period, 52 147 PHIVY contributed 207 945 PY (ART initiation median age: 4.5 years). Overall mortality IR was 1.4/100 PY (95% CI: 1.4 to 1.5) and higher in low CD4 strata; patients at each end of the age spectrum (<2 and >19) had increased mortality post-ART. IRs for first occurrence of WHO-4 and WHO-3 events were 1.3/100 PY (95% CI: 1.2 to 1.4) and 2.1/100 PY (95% CI: 2.0 to 2.2) respectively. These were also associated with lower CD4 and younger age strata. CONCLUSIONS: Mortality and incidence of clinical events were highest in both younger (<2 years) and older (>19 years) youth with PHIV. Scaling-up services for <2 years (early access to HIV diagnosis and care) and >19 years (adolescent- and youth-focused health services) is critical to improve outcomes among PHIVY.


Subject(s)
Anti-HIV Agents/therapeutic use , CD4 Lymphocyte Count , HIV Infections/drug therapy , HIV Infections/mortality , Adolescent , Adult , Africa, Southern/epidemiology , Asia/epidemiology , Caribbean Region/epidemiology , Central America/epidemiology , Child , Child, Preschool , Cohort Studies , Female , HIV Infections/epidemiology , HIV Infections/transmission , Humans , Incidence , Infant , Infant, Newborn , Male , South America/epidemiology , World Health Organization , Young Adult
10.
J Int AIDS Soc ; 23(7): e25580, 2020 07.
Article in English | MEDLINE | ID: mdl-32722897

ABSTRACT

INTRODUCTION: As integrase inhibitors become available in low- and middle-income countries (LMICs), they offer the potential to expand extremely limited treatment options available to children and adolescents. In LMICs, only small numbers have used raltegravir, primarily as part of third-line regimens. Using data from the IeDEA global consortium, we aimed to describe the characteristics of children on raltegravir-containing regimens and their outcomes. METHODS: We included data from 1994 to 2017 from children (age <18 years), from East and Southern Africa, Asia and South America, who received cART regimens containing raltegravir for ≥90 days. We describe their characteristics at raltegravir start, and their immunological and virological outcomes. RESULTS AND DISCUSSION: In total, 62 children were included, with median age at raltegravir initiation of 14.3 years (IQR 11.2 to 15.8) and median CD4 count of 276 cells/µL (IQR 68 to 494). Among 40 (65%) with drug resistance testing prior to raltegravir, 71% were resistant to at least one protease inhibitor (PI), and 32% had high-level resistance to at least one drug class. Most (n = 50; 81%) received raltegravir as part of third-line cART following PI-based regimens, and were on regimens containing four or more drugs (n = 47, 76%). By database closure, median duration on raltegravir was 2.0 years (IQR 0.8 to 3.0), 1 (1.6%) patient had died, 6 (9.7%) were lost to follow-up and 21 (34%) had discontinued raltegravir. Among 15 patients reporting reasons for stopping raltegravir, six discontinued because it was no longer available. Within one year of starting raltegravir, among 53 patients with VL measures, 40 (75%) had VL < 1000 copies/mL, and among 54 with a reported CD4 count, 45 (83%) and 36 (67%) were ≥350 and ≥500 cells/µL, respectively, with median CD4 count increasing to 517.5 cells/µL (IQR 288 to 810). CONCLUSIONS: Among children in LMICs, the initial use of raltegravir has been primarily for post PI-based cART. We found good virological and immunological outcomes despite frequent prior triple-class failure and high levels of drug resistance. Both access to raltegravir and long-term adherence to regimens with large pill-burdens remain challenging. Policies which promote earlier access to new drugs and simplify daily regimens for children and adolescents in LMICs are needed.


Subject(s)
HIV Infections/drug therapy , HIV Integrase Inhibitors/therapeutic use , Raltegravir Potassium/therapeutic use , Adolescent , Africa, Southern , Asia , CD4 Lymphocyte Count , Child , Female , HIV Infections/economics , HIV Infections/immunology , HIV Infections/virology , Humans , Male , Poverty , South America , Treatment Outcome , Viral Load/drug effects
11.
BMC Res Notes ; 13(1): 249, 2020 May 24.
Article in English | MEDLINE | ID: mdl-32448379

ABSTRACT

OBJECTIVE: Pediatric antiretroviral therapy (ART) for children with HIV (CHIV) must be dosed appropriately for children's changing weights as they grow. To inform accurate estimates of ART formulations and doses needed, we described weight-for-age distributions among CHIV on ART in the IeDEA global pediatric collaboration between 2004 and 2016, using data from six regions (East, West, Central, and Southern Africa, Asia-Pacific, and Central/South America and the Caribbean). RESULTS: Overall, 59,862 children contributed to the analysis. Age and weight data were available from 530,080 clinical encounters for girls and 537,894 for boys. For each one-year age stratum from 0 to 15 years, we calculated the proportion of children in each of the weight bands designated by the World Health Organization as relevant to pediatric ART formulations: 0 to < 3 kg, 3 to < 6 kg, 6 to < 10 kg, 10 to < 14 kg, 14 to < 20 kg, 20 to < 25 kg, 25 to < 30 kg, 30 to < 35 kg, 35 to < 40 kg, 40 to < 45 kg, 45 to < 50 kg, 50 to < 55 kg, 55 to < 60 kg, and ≥ 60 kg. Data are reported for the entire cohort, as well as stratified by sex and IeDEA region, calendar year of ART use, and duration on ART at time of assessment (< 12 or ≥ 12 months), provided in data tables. These data are critical to improve the accuracy of forecasting and procurement of pediatric ART formulations as the pediatric HIV epidemic and pediatric HIV treatment strategies evolve.


Subject(s)
Acquired Immunodeficiency Syndrome/drug therapy , Anti-HIV Agents/therapeutic use , HIV Infections/drug therapy , Acquired Immunodeficiency Syndrome/epidemiology , Adolescent , Africa, Central , Africa, Eastern , Africa, Southern , Age Distribution , Asia, Southeastern , Caribbean Region , Central America , Child , Child, Preschool , Cohort Studies , Databases, Factual , Female , HIV Infections/epidemiology , Humans , Infant , Male , South America , World Health Organization
13.
AIDS ; 33 Suppl 3: S227-S234, 2019 12 15.
Article in English | MEDLINE | ID: mdl-31805028

ABSTRACT

BACKGROUND: The Spectrum/AIM model is used by national programs and UNAIDS to prepare annual estimates of the status of the HIV epidemic in 170 countries. The model and assumptions are updated regularly under the guidance of the UNAIDS Reference Group on Estimates, Modelling and Projections in response to new data, studies and program needs. This article describes the most recent updates for the 2018 round of estimates. METHODS: New data on AIDS-related mortality from Europe and Brazil have been used to update mortality rates of those not on antiretroviral therapy (ART). Household survey data and new studies of pregnant women, mothers, and children have been used to improve estimates of the number of HIV-positive pregnant and breastfeeding women and pediatric ART initiation. New tools to estimate geographic variation in HIV prevalence have been used to prepare district estimates of key indicators. RESULTS: The 2018 version of Spectrum includes: new estimates of non-ART AIDS-related mortality by CD4 count that depend on ART coverage; a procedure to estimate country-specific patterns of HIV incidence by age by fitting to prevalence by age from household surveys; an updated estimate of postpartum transmission with ART started before pregnancy of 0.023% per month; an updated estimate of retention on treatment at delivery of 80% for all women on ART; a somewhat older pattern of ART initiation by age that has 26% of new pediatric patients initiating ART at 10-14 years of age, 18% at 2-4 years of age, and 26% at 5-9 years of age; and a new tool for estimating key HIV indicators at the district level. CONCLUSION: The new methods and data implemented in the 2018 version of Spectrum allow national programs more flexibility in describing their programs and are intended to improve the estimates of adult mortality and pediatric HIV indicators.


Subject(s)
Epidemiological Monitoring , HIV Infections/epidemiology , Models, Statistical , Software , Female , Global Health , Humans , Incidence , Infectious Disease Transmission, Vertical , Pregnancy , Pregnancy Complications, Infectious , Prevalence
14.
Pediatr Infect Dis J ; 38(4): 400-405, 2019 04.
Article in English | MEDLINE | ID: mdl-30882732

ABSTRACT

BACKGROUND: Managing virologic failure (VF) in HIV-infected children is especially difficult in resource-limited settings, given limited availability of alternative drugs, concerns around adherence, and the development of HIV resistance mutations. We aimed to evaluate 4 management strategies for children following their first episode of VF by comparing their immunologic and virologic outcomes. METHODS: We included children (< 16 years of age) with VF from 8 International Epidemiologic Database to Evaluate AIDS Southern Africa cohorts, initiating combination antiretroviral therapy (cART) between 2004 and 2010, who followed one of the 4 management strategies: continuing on their failing regimen; switching to a second-line regimen; switching to a holding regimen (either lamivudine monotherapy or other non-cART regimen); discontinuing all ART. We compared the effect of management strategy on the 52-week change in CD4% and log10VL from VF, using inverse probability weighting of marginal structural linear models. RESULTS: Nine hundred eighty-two patients were followed over 54,168 weeks. Relative to remaining on a failing regimen, switching to second-line showed improved immunologic and virologic responses 52 weeks after VF with gains in CD4% of 1.5% (95% confidence interval [CI], 0.2-2.8) and declines in log10VL of -1.4 copies/mL (95% CI, -2.0, -0.8), while switching to holding regimens or discontinuing treatment had worse immunologic (-5.4% (95% CI, -12.1, 1.3) and -5.6% (95% CI, -15.4, 4.1) and virologic outcomes (0.2 (95% CI, -3.6, 4.1) and 0.8 (95% CI, -0.6, 2.1), respectively. CONCLUSIONS: The results provide useful guidance for managing children with VF. Consideration should be given to switching children failing first-line cART to second-line, given the improved virologic and immune responses when compared with other strategies.


Subject(s)
Anti-Retroviral Agents/therapeutic use , Antiretroviral Therapy, Highly Active/methods , Disease Management , Drug Substitution/methods , HIV Infections/drug therapy , Adolescent , Africa, Southern , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Male , Prospective Studies , Treatment Failure
15.
PLoS One ; 13(10): e0205455, 2018.
Article in English | MEDLINE | ID: mdl-30308013

ABSTRACT

BACKGROUND: In resource-limited settings holding regimens, such as lamivudine monotherapy (LM), are used to manage HIV-positive children failing combination antiretroviral therapy (cART) to mitigate the risk of drug resistance developing, whilst adherence barriers are addressed or when access to second- or third-line regimens is restricted. We aimed to investigate characteristics of children placed on LM and their outcomes. METHODS: We describe the characteristics of children (age <16 years at cART start) from 5 IeDEA-SA cohorts with a record of LM during their treatment history. Among those on LM for >90 days we describe their immunologic outcomes on LM and their immunologic and virologic outcomes after resuming cART. FINDINGS: We included 228 children in our study. At LM start their median age was 12.0 years (IQR 7.3-14.6), duration on cART was 3.6 years (IQR 2.0-5.9) and median CD4 count was 605.5 cells/µL (IQR 427-901). Whilst 110 (48%) had no prior protease inhibitor (PI)-exposure, of the 69 with recorded PI-exposure, 9 (13%) patients had documented resistance to all PIs. After 6 months on LM, 70% (94/135) experienced a drop in CD4, with a predicted average CD4 decline of 46.5 cells/µL (95% CI 37.7-55.4). Whilst on LM, 46% experienced a drop in CD4 to <500 cells/µL, 18 (8%) experienced WHO stage 3 or 4 events, and 3 children died. On resumption of cART the average gain in CD4 was 15.65 cells/uL per month and 66.6% (95% CI 59.3-73.7) achieved viral suppression (viral load <1000) at 6 months after resuming cART. INTERPRETATION: Most patients experienced immune decline on LM. Its use should be avoided in those with low CD4 counts, but restricted use may be necessary when treatment options are limited. Managing children with virologic failure will continue to be challenging until more treatment options and better adherence strategies are available.


Subject(s)
Anti-HIV Agents/administration & dosage , HIV Infections/drug therapy , Lamivudine/administration & dosage , Adolescent , Anti-HIV Agents/pharmacology , CD4 Lymphocyte Count , Child , Female , HIV Infections/mortality , Humans , Lamivudine/pharmacology , Male , Patient Compliance , Prospective Studies , Survival Analysis , Treatment Outcome , Viral Load/drug effects
16.
PLoS One ; 11(4): e0152653, 2016.
Article in English | MEDLINE | ID: mdl-27044006

ABSTRACT

Reaching universal HIV-status awareness is crucial to ensure all HIV-infected patients access antiretroviral treatment (ART) and achieve virological suppression. Opportunities for HIV testing could be enhanced by offering self-testing in populations that fear stigma and discrimination when accessing conventional HIV Counselling and Testing (HCT) in health care facilities. This qualitative research aims to examine the feasibility and acceptability of unsupervised oral self-testing for home use in an informal settlement of South Africa. Eleven in-depth interviews, two couple interviews, and two focus group discussions were conducted with seven healthcare workers and thirteen community members. Thematic analysis was done concurrently with data collection. Acceptability to offer home self-testing was demonstrated in this research. Home self-testing might help this population overcome barriers to accepting HCT; this was particularly expressed in the male and youth groups. Nevertheless, pilot interventions must provide evidence of potential harm related to home self-testing, intensify efforts to offer quality counselling, and ensure linkage to HIV/ART-care following a positive self-test result.


Subject(s)
Awareness , HIV Infections/diagnosis , Self-Examination , Adult , Female , Humans , Male , Middle Aged , Pilot Projects , South Africa
17.
South Afr J HIV Med ; 16(1): 367, 2015.
Article in English | MEDLINE | ID: mdl-29568589

ABSTRACT

BACKGROUND: Lengthy antiretroviral treatment (ART) preparation contributes to high losses to care between communicating ART eligibility and initiating ART. To address this shortfall, Médecins Sans Frontières implemented a revised approach to ART initiation counselling preparation (integrated for TB co-infected patients), shifting the emphasis from pre-initiation sessions to addressing common barriers to adherence and strengthening post-initiation support in a primary healthcare facility in Khayelitsha, South Africa. METHODS: An observational cohort study was conducted using routinely collected data for all ART-eligible patients attending their first counselling session between 23 July 2012 and 30 April 2013 to assess losses to care prior to and post ART initiation. Viral load completion and suppression rates of those retained on ART were also calculated. RESULTS: Overall, 449 patients enrolled in the study, of whom 3.6% did not return to the facility to initiate ART. Of those who were initiated, 96.7% were retained at their first ART refill visit and 85.9% were retained 6 months post ART initiation. Of those retained, 80.2% had a viral load taken within 6 months of initiating ART, with 95.4% achieving viral load suppression. CONCLUSIONS: Adapting counselling to enable rapid ART initiation is feasible and has the potential to reduce losses to care prior to ART initiation without increasing short-term losses thereafter or compromising patient adherence.

18.
PLoS One ; 9(6): e98389, 2014.
Article in English | MEDLINE | ID: mdl-24887260

ABSTRACT

INTRODUCTION: To combat the AIDS epidemic and increase HIV treatment access, the South African government implemented a nurse-based, doctor-supported model of care that decentralizes administration of antiretroviral treatment (ART) for HIV positive patients through nurse initiated and managed ART. Médecins Sans Frontières (MSF) implemented a mentorship programme to ensure successful task-shifting, subsequently assessing the quality of clinical care provided by nurses. METHODS: A before-after cross-sectional study was conducted on nurses completing the mentorship programme in Khayelitsha, South Africa, from February 2011-September 2012. Routine clinical data from 229 patient folders and 21 self-assessment questionnaires was collected to determine the number of patients initiated on ART by nurses; quality of ART management before-after mentorship; patient characteristics for doctor and nurse ART initiations; and nurse self-assessments after mentorship. RESULTS: Twenty one nurses were authorized by one nurse mentor with one part-time medical officer's support, resulting in nurses initiating 77% of ART eligible patients. Improvements in ART management were found for drawing required bloods (91% vs 99%, p = 0.03), assessing adherence (50% vs 78%, p<0.001) and WHO staging (63% vs 91%, p<0.001). Nurse ART initiation indicators were successfully completed at 95-100% for 11 of 16 indicators: clinical presentation; patient weight; baseline blood work (CD4, creatinine, haemoglobin); STI screening; WHO stage, correlating medical history; medications prescribed appropriately; ART start date; and documented return date. Doctors initiated more patients with TB/HIV co-infection and WHO Stage 3 and 4 disease than nurses. Nurse confidence improved for managing HIV-infected children and pregnant women, blood result interpretation and long-term side effects. CONCLUSIONS: Implementation of a clinical mentorship programme in Khayelitsha led to nurse initiation of a majority of eligible patients, enabling medical officers to manage complex cases. As mentorship can increase clinical confidence and enhance professional development, it should be considered essential for universal ART access in resource limited settings.


Subject(s)
Anti-HIV Agents/therapeutic use , HIV Infections/drug therapy , Mentors , Nurse-Patient Relations , Child , Female , HIV Infections/nursing , Humans , Pregnancy , South Africa
19.
J Int AIDS Soc ; 16: 18518, 2013 Jul 04.
Article in English | MEDLINE | ID: mdl-23830642

ABSTRACT

INTRODUCTION: Despite the rapid expansion of antiretroviral therapy (ART) programmes in developing countries, pre-treatment losses from care remain a challenge to improving access to treatment. Youth and adolescents have been identified as a particularly vulnerable group, at greater risk of loss from both pre-ART and ART care. Point-of-care (POC) CD4 testing has shown promising results in improving linkage to ART care. In Khayelitsha township, South Africa, POC CD4 testing was implemented at a clinic designated for youth aged 12-25 years. We assessed whether there was an associated reduction in attrition between HIV testing, assessment for eligibility and ART initiation. METHODS: A before-and-after observational study was conducted using routinely collected data. These were collected on patients from May 2010 to April 2011 (Group A) when baseline CD4 count testing was performed in a laboratory and results were returned to the clinic within two weeks. Same-day POC CD4 testing was implemented in June 2011, and data were collected on patients from August 2011 to July 2012 (Group B). RESULTS: A total of 272 and 304 youth tested HIV-positive in Group A and Group B, respectively. Group B patients were twice as likely to have their ART eligibility assessed compared to Group A patients: 275 (90%) vs. 183 (67%) [relative risk (RR)=2.4, 95% CI: 1.8-3.4, p<0.0001]. More patients in World Health Organization (WHO) Stage 1 disease (85% vs. 69%), with CD4 counts≥350 cells/µL (58% vs. 35%) and more males (13% vs. 7%) were detected in Group B. The proportion of eligible patients who initiated ART was 50% and 44% (p=0.6) in Groups B and A, respectively; and 50% and 43% (p=0.5) when restricted to patients with baseline CD4 count≤250 cells/µL. Time between HIV-testing and ART initiation was reduced from 36 to 28 days (p=0.6). DISCUSSION: POC CD4 testing significantly improved assessment for ART eligibility. The improvement in the proportion initiating ART and the reduction in time to initiation was not significant due to sample size limitations. CONCLUSIONS: POC CD4 testing reduced attrition between HIV-testing and assessment of ART eligibility. Strategies to improve uptake of ART are needed, possibly by improving patient support for HIV-positive youth immediately after diagnosis.


Subject(s)
Ambulatory Care/methods , Ambulatory Care/organization & administration , Anti-Retroviral Agents/administration & dosage , HIV Infections/diagnosis , HIV Infections/drug therapy , Point-of-Care Systems , CD4 Lymphocyte Count/methods , Cohort Studies , Female , Humans , Male , Pregnancy , South Africa , Time Factors , Young Adult
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