9 results on '"Mack N"'
Search Results
2. Are children of key population individuals at higher risk of HIV than other children? Results from a multi-country analysis of routine program data.
- Author
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Casalini C, Yeiser S, Amanuel H, Gottlieb A, Akolo C, Toovi MK, Gashobotse D, Mabanza P, Ogwang B, Georges S, Mack N, and Srivastava M
- Subjects
- Humans, Child, Female, Male, Adolescent, Child, Preschool, Retrospective Studies, Infant, Tanzania epidemiology, Cote d'Ivoire epidemiology, Burundi epidemiology, Togo epidemiology, Democratic Republic of the Congo epidemiology, HIV Testing, Risk Factors, HIV Infections epidemiology, HIV Infections drug therapy, HIV Infections diagnosis
- Abstract
Introduction: Children of key population individuals (CPK) often face the same stigma and discrimination as their parents, limiting their access to HIV services. The Meeting Targets and Maintaining Epidemic Control project analyzed pediatric HIV testing data from project-supported sites to better understand risk among CKP and improve comprehensive prevention, testing, and treatment for KP families., Methods: We conducted a retrospective analysis of routine program data collected October 1, 2021-September 30, 2022, in project-supported sites in Burundi, Côte d'Ivoire, Democratic Republic of Congo, Tanzania, and Togo. We compared HIV case finding (defined as the percentage of children diagnosed with HIV among those who were tested) and treatment initiation (defined as the percentage of children diagnosed with HIV who were initiated on antiretroviral therapy) data for children <15 years disaggregated by index versus non-index testing and CKP versus children of non-KP individuals (non-CKP)., Results: A total of 5,651 children were tested (n = 2,974 index testing; n = 2,677 non-index testing). Of those diagnosed with HIV, 33% (181/541) were CKP, with case finding 17% (181 positive/1,070 tested) among CKP and 8% among non-CKP (360 positive/4,581 tested). Almost half of CKP diagnosed were ages 1-4 years. Among the 2,974 (53%) reached through index testing, overall case finding was higher among CKP (17%; 178 positive/1,052 tested) than non-CKP (11%; 219 positive/1,922 tested). Treatment initiation was 97% among CKP and 94% among non-CKP., Discussion: CKP were identified primarily through index testing which, although considered a priority strategy to identify children at high risk, has not been widely used within KP family networks. Most CKP reached were children of female sex workers, but those of other KPs should also be prioritized., Conclusions: KP-focused programs have often excluded children, but the case-finding approaches in the project's KP programs were effective in reaching CKP. Comprehensive, family-centered KP programming is needed that includes family planning, prevention of vertical transmission, early infant diagnosis, and other maternal and child health services to reduce the impact of HIV on families and achieve an HIV-free generation., Competing Interests: The authors have declared that no competing interests exist., (Copyright: This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication.)
- Published
- 2024
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3. Targeted solutions to increase dolutegravir coverage, viral load testing coverage, and viral suppression among children living with HIV in Togo: An analysis of routine facility data.
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Casalini C, D'Almeida Y, Nassam MA, Kokoloko E, Wade S, Tchupo JP, Damarly M, Mandala J, Lanham M, Mack N, Akolo C, Pitche VP, Guidigbi H, and Dagnra CA
- Subjects
- Child, Humans, Viral Load methods, Togo, Retrospective Studies, HIV Infections drug therapy, Anti-HIV Agents therapeutic use
- Abstract
Background: According to UNAIDS, Togo halved AIDS-related deaths among children ages 0-14 from 2010 to 2020. However, available data show low dolutegravir (DTG)-containing antiretroviral therapy (ART) coverage and low viral load suppression (VLS) among children living with HIV (CLHIV). We analyzed routine facility data before and after implementation of root-cause-based solutions for improving DTG coverage, viral load (VL) testing coverage, and VLS among CLHIV., Description: We analyzed routine data for CLHIV ≤14 years from October 2019 through September 2022. We assessed proportion of CLHIV on ART receiving DTG, VL testing coverage (CLHIV on ART with documented VL test result), and VLS (CLHIV with documented VL test result of <1,000 copies among those with test result). From October 2019 to September 2020, 52% were on a DTG-containing regimen, 48% had documented VL test results, and 64% had VLS. Site-level teams conducted a root-cause analysis and designed corresponding solutions implemented beginning October 2020: line listing and contacting eligible CLHIV to start/transition to DTG-containing regimen and collect VL samples; ART adherence support; monthly DTG stock monitoring; tracking pending VL test results through laboratory focal persons; documenting VL test results; and informing caregivers within one week if CLHIV not virally suppressed. Granular data were used to prioritize technical assistance to sites with lowest DTG coverage, VL testing coverage, and VLS., Results: From baseline (October 2019-September 2020) to endline (October 2021-September 2022), increases were observed for DTG coverage (52% to 71%), VL testing coverage (48% to 90%), and VLS (64% to 82%). Age-disaggregated data showed positive trends., Conclusions: Root-cause-based solutions and granular data use increased DTG coverage, resulting in increased VL testing and VLS among CLHIV. These interventions should be scaled and become the national standard of care., Competing Interests: The authors have declared that no competing interests exist., (Copyright: This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 public domain dedication.)
- Published
- 2023
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4. Increasing multimonth dispensing of antiretrovirals and assessing the effect on viral load suppression among children and adolescents receiving HIV services in Nigeria.
- Author
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Casalini C, Bateganya M, Akolo C, Sanwo O, Idemudia A, Nwaokoro P, Eyam F, Ogbechie MD, Obiora-Okafo C, Oduola A, Wilcher R, Mack N, Khamofu H, and Pandey SR
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- Humans, Adolescent, Child, Nigeria epidemiology, Retrospective Studies, Viral Load, Ambulatory Care, Anti-Retroviral Agents therapeutic use, COVID-19
- Abstract
Introduction: Multimonth dispensing (MMD) enables less frequent clinic visits and improved outcomes for people living with HIV, but few children and adolescents living with HIV (CALHIV) are on MMD. At the end of the October-December 2019 quarter, only 23% of CALHIV receiving antiretroviral therapy (ART) through SIDHAS project sites in Akwa Ibom and Cross River states, Nigeria, were receiving MMD. In March 2020, during COVID-19, the government expanded MMD eligibility to include children and recommended rapid implementation to minimize clinic visits. SIDHAS provided technical assistance to 36 "high-volume" facilities-≥5 CALHIV on treatment-in Akwa Ibom and Cross River to increase MMD and viral load suppression (VLS) among CALHIV, toward PEPFAR's 80% benchmark for people currently on ART. We present change in MMD, viral load (VL) testing coverage, VLS, optimized regimen coverage, and community-based ART group enrollment among CALHIV from the October-December 2019 quarter (baseline) to January-March 2021 (endline) based on retrospective analysis of routinely collected program data., Materials and Methods: We compared MMD coverage (primary objective), and optimized regimen coverage, community-based ART group enrollment, VL testing coverage, and VLS (secondary objectives), among CALHIV 18 years and younger pre-/post-intervention (baseline/endline) at the 36 facilities. We excluded children younger than two years, who are not recommended for or routinely offered MMD. The extracted data included age, sex, ART regimen, months of ART dispensed at last refill, most recent VL test results, and community ART group enrollment. Data on MMD-three or more months of ARVs dispensed at one time-were disaggregated into three to five months (3-5-MMD) vs. six or more months (6-MMD). VLS was defined as ≤1,000 copies. We documented MMD coverage by site, optimized regimen, and VL testing and suppression. Using descriptive statistics, we summarized the characteristics of CALHIV on MMD and non-MMD, number of CALHIV on optimized regimens, and proportion enrolled in differentiated service delivery models and community-based ART refill groups. For the intervention, SIDHAS technical assistance was data driven: weekly data analysis/review, site-prioritization scoring, provider mentoring, line listing eligible CALHIV, pediatric regimen calculator, child-optimized regimen transitioning, and community ART models., Results: The proportion of CALHIV ages 2-18 receiving MMD increased from 23% (620/2,647; baseline) to 88% (3,992/4,541; endline), while the proportion of sites reporting suboptimal MMD coverage among CALHIV (<80%) decreased (100% to 28%). In March 2021, 49% of CALHIV were receiving 3-5-MMD and 39% 6-MMD. In October-December 2019, 17%-28% of CALHIV were receiving MMD; by January-March 2021, 99% of those 15-18 years, 94% 10-14 years, 79% 5-9 years, and 71% 2-4 years were on MMD. VL testing coverage remained high (90%), while VLS increased (64% to 92%). The proportion on pediatric-optimized regimens increased (58% to 79%)., Conclusions: MMD was feasible among CALHIV without compromising VLS. Expanded eligibility criteria, line listing eligible children, monitoring pediatric antiretroviral stock, and data use contributed to positive results. Future efforts should address low 6-MMD uptake related to stock limitations and synchronize antiretroviral refill pickup with VL sample collection., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2023 Casalini et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2023
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5. Population-based correlates of COVID-19 infection: An analysis from the DFW COVID-19 prevalence study.
- Author
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Singal AG, Masica A, Esselink K, Murphy CC, Dever JA, Reczek A, Bensen M, Mack N, Stutts E, Ridenhour JL, Galt E, Brainerd J, Kopplin N, Yekkaluri S, Rubio C, Anderson S, Jan K, Whitworth N, Wagner J, Allen S, Muthukumar AR, and Tiro J
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- Adult, Humans, COVID-19 Testing, Cross-Sectional Studies, Pandemics, Urban Population, Male, Female, Middle Aged, Aged, Aged, 80 and over, COVID-19 epidemiology
- Abstract
Background: COVID-19 has resulted in over 1 million deaths in the U.S. as of June 2022, with continued surges after vaccine availability. Information on related attitudes and behaviors are needed to inform public health strategies. We aimed to estimate the prevalence of COVID-19, risk factors of infection, and related attitudes and behaviors in a racially, ethnically, and socioeconomically diverse urban population., Methods: The DFW COVID-19 Prevalence Study Protocol 1 was conducted from July 2020 to March 2021 on a randomly selected sample of adults aged 18-89 years, living in Dallas or Tarrant Counties, Texas. Participants were asked to complete a 15-minute questionnaire and COVID-19 PCR and antibody testing. COVID-19 prevalence estimates were calculated with survey-weighted data., Results: Of 2969 adults who completed the questionnaire (7.4% weighted response), 1772 (53.9% weighted) completed COVID-19 testing. Overall, 11.5% of adults had evidence of COVID-19 infection, with a higher prevalence among Hispanic and non-Hispanic Black persons, essential workers, those in low-income neighborhoods, and those with lower education attainment compared to their counterparts. We observed differences in attitudes and behaviors by race and ethnicity, with non-Hispanic White persons being less likely to believe in the importance of mask wearing, and racial and ethnic minorities more likely to attend social gatherings., Conclusion: Over 10% of an urban population was infected with COVID-19 early during the pandemic. Differences in attitudes and behaviors likely contribute to sociodemographic disparities in COVID-19 prevalence., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2022 Singal et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
- Published
- 2022
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6. Osmium isotope analysis as an innovative tool for provenancing ancient iron: A systematic approach.
- Author
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Brauns M, Yahalom-Mack N, Stepanov I, Sauder L, Keen J, and Eliyahu-Behar A
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- Archaeology, History, Ancient, Humans, Iron isolation & purification, Israel, Metallurgy history, Iron history, Isotopes analysis, Osmium analysis
- Abstract
The innovation of iron production is often considered one of the greatest technological advances in human history. A reliable provenancing method for iron is instrumental for the reconstruction of economic, social and geo-political aspects of iron production and use in antiquity. Although the potential of osmium isotopes analysis for this purpose has been previously suggested, here we present for the first time the results of osmium isotope analysis of ores, bloom and metal obtained from a set of systematic, bloomery iron-smelting experiments, utilizing selected ores from the Southern Levant. The results show that the 187Os/188Os ratio is preserved from ore to metal, with no isotopic fractionation. In addition, enrichment/depletion of osmium content was observed in the transition from ore to metal and from ore to slag. This observation has potential significance for our ability to differentiate between the various processes and sheds light on the suitability of various production remains for this method, which emerges as a robust and promising tool for the provenancing of archaeological ferrous metals., Competing Interests: We have the following competing interests: Mr. Lee Sauder is employed by his own company Germinal Ironworks. There are no patents, products in development or marketed products to declare. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials.
- Published
- 2020
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7. Attitudes and perceptions towards novel objective measures of ARV-based vaginal ring use: Results from a global stakeholder survey.
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Stalter RM, Tharaldson J, Owen DH, Okumu E, Moench T, Mack N, Tolley EE, and MacQueen KM
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- Adolescent, Adult, Anti-Retroviral Agents blood, Anti-Retroviral Agents therapeutic use, Electronic Mail, Female, HIV Infections prevention & control, Hair chemistry, Humans, Male, Pyrimidines analysis, Pyrimidines blood, Pyrimidines therapeutic use, Surveys and Questionnaires, Young Adult, Anti-Retroviral Agents analysis, Attitude, Contraceptive Devices, Female, Perception
- Abstract
Results of recent microbicide and pre-exposure prophylaxis clinical trials have shown adherence to be a significant challenge with new HIV prevention technologies. As the vaginal ring containing dapivirine moves into two open label follow-on studies (HOPE/MTN-025 and DREAM) and other antiretroviral-based and multi-purpose prevention technology ring products advance through the development pipeline, there is a need for more accurate and reliable measures of adherence to microbicide ring products. We previously conducted a comprehensive landscape analysis to identify new technologies that could be applied to adherence measurement of vaginal rings containing antiretrovirals. To explore attitudes and perceptions towards the approaches that we identified, we conducted a survey of stakeholders with experience and expertise in microbicide and HIV prevention clinical trials. From May to July 2015 an electronic survey was distributed via email to 894 stakeholders; a total of 206 eligible individuals responded to at least one question and were included in the data analysis. Survey respondents were presented with various objective measures and asked about their perceived acceptability to trial participants, feasibility of implementation by study staff, usefulness for measuring adherence and ethical concerns. Methods that require no additional input from the participant and require no modifications to the existing ring product (i.e., measurement of residual drug or excipient, or a vaginal analyte that enters the ring) were viewed as being more acceptable to trial participants and more feasible to implement in the field. Respondents saw value in using objective measures to provide real-time feedback on adherence. However, approaches that involve unannounced home visits for sample collection or spot checks of ring use, which could provide significant value to adherence feedback efforts, were met with skepticism. Additional research on the acceptability of these methods to potential trial participants and trial staff is recommended.
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- 2017
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8. The Earliest Lead Object in the Levant.
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Yahalom-Mack N, Langgut D, Dvir O, Tirosh O, Eliyahu-Behar A, Erel Y, Langford B, Frumkin A, Ullman M, and Davidovich U
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- Environment, Fossils, History, Ancient, Humans, Israel, Archaeology, Lead history, Metallurgy history, Radiometric Dating
- Abstract
In the deepest section of a large complex cave in the northern Negev desert, Israel, a bi-conical lead object was found logged onto a wooden shaft. Associated material remains and radiocarbon dating of the shaft place the object within the Late Chalcolithic period, at the late 5th millennium BCE. Based on chemical and lead isotope analysis, we show that this unique object was made of almost pure metallic lead, likely smelted from lead ores originating in the Taurus range in Anatolia. Either the finished object, or the raw material, was brought to the southern Levant, adding another major component to the already-rich Late Chalcolithic metallurgical corpus known to-date. The paper also discusses possible uses of the object, suggesting that it may have been used as a spindle whorl, at least towards its deposition.
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- 2015
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9. Lost in translation: assessing effectiveness of focus group questioning techniques to develop improved translation of terminology used in HIV prevention clinical trials.
- Author
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Mack N, Ramirez CB, Friedland B, and Nnko S
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- Adolescent, Adult, Biomedical Research methods, Clinical Trials as Topic methods, Communication, Comprehension, Female, Guidelines as Topic, Humans, Middle Aged, Recognition, Psychology, Reproducibility of Results, Tanzania, Young Adult, Focus Groups methods, HIV Infections prevention & control, Language, Terminology as Topic, Translating
- Abstract
Introduction: Achieving participant comprehension has proven to be one of the most difficult, practical, and ethical challenges of HIV prevention clinical trials. It becomes even more challenging when local languages do not have equivalent scientific and technical vocabularies, rendering communication of scientific concepts in translated documents extremely difficult. Even when bilingual lexicons are developed, there is no guarantee that participants understand the terminology as translated., Methods: We conducted twelve focus groups with women of reproductive age in Mwanza, Tanzania to explore the effectiveness of four questioning techniques for: (1) assessing participants' familiarity with existing technical terms and concepts, (2) generating a list of acceptable technical and non-technical terms, (3) testing our definitions of technical terms, and (4) verifying participants' preferences for terms. Focus groups were transcribed, translated, and qualitatively analyzed., Results and Discussion: A translation process that uses all four questioning techniques in a step-wise approach is an effective way to establish a baseline understanding of participants' familiarity with research terms, to develop and test translatable definitions, and to identify participants' preferred terminology for international HIV clinical research. This may help to ensure that important concepts are not "lost in translation." The results emphasize the importance of using a variety of techniques depending on the level of participant familiarity with research concepts, the existence of colloquial or technical terms in the target language, and the inherent complexity of the terms.
- Published
- 2013
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