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https://www.readbyqxmd.com/read/28820788/community-health-workers-and-the-management-of-noncommunicable-diseases-among-rural-health-clinics-in-limpopo-province-south-africa-a-pilot-study
#1
Aubrey L Doede, Taylor E Allen, JaʼLynn S Gray, Austin G Herbst, Madala C Hlungwani, Nditsheni J Ramakuela, Alice X Xie, Cathy L Campbell
South Africa's rise in noncommunicable diseases (NCDs) and health care provider shortages has generated the need for community health workers (CHWs) in rural areas. However, roles and interactions with clinic staff are not well understood. Interviews with health care workers at community clinics in Limpopo Province revealed common themes, including resource scarcity, clinic-patient partnerships, management of NCDs, and collaboration between professionals. The data did not support CHW-physician interactions, necessitating further research to describe these practices and to evaluate CHWs' impact on patient outcomes...
October 2017: Family & Community Health
https://www.readbyqxmd.com/read/28820374/use-of-blood-donor-screening-to-monitor-prevalence-of-hiv-and-hepatitis-b-and-c-viruses-south-africa
#2
Marion Vermeulen, Ronel Swanevelder, Dhuly Chowdhury, Charlotte Ingram, Ravi Reddy, Evan M Bloch, Brian S Custer, Edward L Murphy
Among 397,640 first-time blood donors screened in South Africa during 2012-2015, HIV prevalence was 1.13%, hepatitis B virus prevalence 0.66%, and hepatitis C virus prevalence 0.03%. Findings of note were a high HIV prevalence in Mpumalanga Province and the near absence of hepatitis C virus nationwide.
September 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28818644/radioecological-assessment-and-radiometric-dating-of-sediment-cores-from-dynamic-sedimentary-systems-of-pra-and-volta-estuaries-ghana-along-the-equatorial-atlantic
#3
E Klubi, J M Abril, E Nyarko, A Laissaoui, M Benmansour
The Volta and Pra estuaries (Ghana, West Africa) are dynamical sedimentary systems whose natural equilibrium is being affected by anthropogenic activities. This paper reports depth-distributions of (210)Pb, (226)Ra, (234)Th, (40)K, (228)Ra and (137)Cs for two sediment cores from these estuaries. Bulk densities were not steady-state and well correlated with (40)K (p < 0.00005). Unsupported (210)Pb profiles were incomplete, non-monotonic and showed large fluctuations. The assumptions involved in the common (210)Pb-based dating models were not meet in these dynamical scenarios, and the use of (137)Cs as a time-marker is difficult in Equatorial and South-Hemisphere countries due to its low fallout rates...
August 14, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28818582/associations-between-meeting-combinations-of-24-h-movement-guidelines-and-health-related-quality-of-life-in-children-from-12-countries
#4
H Sampasa-Kanyinga, M Standage, M S Tremblay, P T Katzmarzyk, G Hu, R Kuriyan, C Maher, J Maia, T Olds, O L Sarmiento, C Tudor-Locke, J-P Chaput
OBJECTIVES: To examine whether meeting vs not meeting movement/non-movement guidelines (moderate-to-vigorous physical activity [MVPA], screen time, sleep duration), and combinations of these recommendations, are associated with health-related quality of life (HRQoL) in children from 12 countries in five major geographic regions of the world and explore whether the associations vary by study site. STUDY DESIGN: Observational, multinational cross-sectional study. METHODS: This study included 6106 children aged 9-11 years from sites in Australia, Brazil, Canada, China, Colombia, Finland, India, Kenya, Portugal, South Africa, the United Kingdom, and the United States...
August 14, 2017: Public Health
https://www.readbyqxmd.com/read/28818546/glecaprevir-plus-pibrentasvir-for-chronic-hepatitis-c-virus-genotype-1-2-4-5-or-6-infection-in-adults-with-compensated-cirrhosis-expedition-1-a-single-arm-open-label-multicentre-phase-3-trial
#5
Xavier Forns, Samuel S Lee, Joaquin Valdes, Sabela Lens, Reem Ghalib, Humberto Aguilar, Franco Felizarta, Tarek Hassanein, Holger Hinrichsen, Diego Rincon, Rosa Morillas, Stefan Zeuzem, Yves Horsmans, David R Nelson, Yao Yu, Preethi Krishnan, Chih-Wei Lin, Jens J Kort, Federico J Mensa
BACKGROUND: The once-daily, ribavirin-free, pangenotypic, direct-acting antiviral regimen, glecaprevir coformulated with pibrentasvir, has shown high rates of sustained virological response in phase 2 and 3 studies. We aimed to assess the efficacy and safety of 12 weeks of coformulated glecaprevir and pibrentasvir in patients with hepatitis C virus (HCV) infection and compensated cirrhosis. METHODS: We did this single-arm, open-label, multicentre phase 3 study at 40 sites in Belgium, Canada, Germany, South Africa, Spain, and the USA...
August 14, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28818090/trends-in-maternal-and-neonatal-mortality-in-south-africa-a-systematic-review-protocol
#6
Damian J Damian, Bernard Njau, Ester Lisasi, Sia E Msuya, Andrew Boulle
BACKGROUND: Measuring and monitoring progress towards Millennium Development Goals (MDG) 4 and 5 requires valid and reliable estimates of maternal and neonatal mortality. In South Africa, there are conflicting reports on the estimates of maternal and neonatal mortality, derived from both direct and indirect estimation techniques. This study aims to systematically review the estimates made of maternal and neonatal mortality in the period from 1990 to 2015 in South Africa and determine trends over this period...
August 17, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28818053/the-impact-of-self-interviews-on-response-patterns-for-sensitive-topics-a-randomized-trial-of-electronic-delivery-methods-for-a-sexual-behaviour-questionnaire-in-rural-south-africa
#7
Guy Harling, Dumile Gumede, Tinofa Mutevedzi, Nuala McGrath, Janet Seeley, Deenan Pillay, Till W Bärnighausen, Abraham J Herbst
BACKGROUND: Self-interviews, where the respondent rather than the interviewer enters answers to questions, have been proposed as a way to reduce social desirability bias associated with interviewer-led interviews. Computer-assisted self-interviews (CASI) are commonly proposed since the computer programme can guide respondents; however they require both language and computer literacy. We evaluated the feasibility and acceptability of using electronic methods to administer quantitative sexual behaviour questionnaires in the Somkhele demographic surveillance area (DSA) in rural KwaZulu-Natal, South Africa...
August 17, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28817618/national-scale-cropland-mapping-based-on-spectral-temporal-features-and-outdated-land-cover-information
#8
François Waldner, Matthew C Hansen, Peter V Potapov, Fabian Löw, Terence Newby, Stefanus Ferreira, Pierre Defourny
The lack of sufficient ground truth data has always constrained supervised learning, thereby hindering the generation of up-to-date satellite-derived thematic maps. This is all the more true for those applications requiring frequent updates over large areas such as cropland mapping. Therefore, we present a method enabling the automated production of spatially consistent cropland maps at the national scale, based on spectral-temporal features and outdated land cover information. Following an unsupervised approach, this method extracts reliable calibration pixels based on their labels in the outdated map and their spectral signatures...
2017: PloS One
https://www.readbyqxmd.com/read/28817178/re-making-the-global-economy-of-knowledge-do-new-fields-of-research-change-the-structure-of-north-south-relations
#9
Raewyn Connell, Rebecca Pearse, Fran Collyer, João Maia, Robert Morrell
How is global-North predominance in the making of organized knowledge affected by the rise of new domains of research? This question is examined empirically in three interdisciplinary areas - climate change, HIV-AIDS, and gender studies - through interviews with 70 researchers in Southern-tier countries Brazil, South Africa and Australia. The study found that the centrality of the North was reinstituted as these domains came into existence, through resource inequalities, workforce mechanisms, and intellectual framing...
August 17, 2017: British Journal of Sociology
https://www.readbyqxmd.com/read/28816644/cyp2b6-haplotype-predicts-efavirenz-plasma-concentration-in-black-south-african-hiv-1-infected-children-a-longitudinal-pediatric-pharmacogenomic-study
#10
Riaan Reay, Collet Dandara, Michelle Viljoen, Malie Rheeders
South Africa has the highest burden of the human immunodeficiency virus (HIV) infection globally. Efavirenz (EFV), a frequently used drug against HIV infection, displays a relationship between drug concentration and pharmacodynamics effects clinically. However, haplotype-based genetic variation in drug metabolism in a pediatric sample has been little considered in a longitudinal long-term context. CYP2B6 plays a key role in variation of EFV plasma concentration through altered drug metabolism. We report here on a prospective clinical pharmacogenomics/pharmacokinetic study of Bantu-speaking children, importantly, over a period of 24 months post-initiation of EFV-based treatment in South Africa...
August 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28815735/traps-and-transformations-influencing-the-financial-viability-of-tourism-on-private-land-conservation-areas
#11
Hayley S Clements, Graeme S Cumming
The ability of private conservation organizations to remain financially viable is a key factor influencing their effectiveness. A third of financially-motivated private land conservation areas (PLCAs) surveyed previously in South Africa were found to be unprofitable, raising questions about their ability to effectively adapt their business models to their socioeconomic environment. In any complex system, options for later adaptation can be constrained by starting conditions ('path dependence'). We tested three hypothesized drivers that might create path dependence in PLCA business models: (H1) land asset size (large mammalian game abundance is constrained by available land area); (H2) infrastructural asset extent (the introduction of charismatic predators, such as lion, requires substantial infrastructural investment); and (H3) productivity (rainfall limits vegetation and thereby game abundance)...
August 17, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28815325/stumbling-blocks-at-the-clinic-experiences-of-seeking-hiv-treatment-and-care-in-south-africa
#12
Brendan Maughan-Brown, Caroline Kuo, Omar Galárraga, Philip Smith, Mark N Lurie, Linda-Gail Bekker, Abigail Harrison
Prompt antiretroviral therapy (ART) initiation maximises the therapeutic and prevention benefits of a treat-all strategy for HIV therapy. Using in-depth semi-structured interviews with men and women 18 years and older (N = 41), who were highly motivated and seeking treatment, this study examined salient factors that were associated with delays in treatment access and initiation. Results revealed clinic-related barriers including an onerous, inefficient multi-step process to initiate ART. Participants experienced additional delays due to difficulties accessing care (e...
August 16, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28815000/african-tick-bite-fever-in-returning-swedish-travellers-report-of-two-cases-and-aspects-of-diagnostics
#13
Kenneth Nilsson, Katarina Wallménius, Pernilla Rundlöf-Nygren, Susanne Strömdahl, Carl Påhlson
Introduction: African tick-bite fever, caused by Rickettsia africae, is endemic in rural areas of sub-Saharan Africa and a possible cause of fever in returning Swedish travellers. Two patients are presented, and the advantages and disadvantages of different diagnostic methods are discussed. Patients and methods: Two middle-aged men fell ill with fever after returning home from South Africa. Both had single eschars and one also presented with a lymph node swelling. Samples were taken for serology, general bacterial culture from the wound (Patient 1) using a swab and additionally for Patient 2 PCR of a skin biopsy from the eschar...
2017: Infection Ecology & Epidemiology
https://www.readbyqxmd.com/read/28814297/genotyping-and-comparative-pathology-of-spirocerca-in-black-backed-jackals-canis-mesomelas-in-south-africa
#14
M M Bumby, M C Williams, J C A Steyl, R Harrison-White, H Lutermann, G T Fosgate, P J de Waal, J Mitha, S J Clift
BACKGROUND: The pathology of spirocercosis, a disease caused by the infestation of carnivores with the nematode Spirocerca lupi, has been extensively described in domestic dogs and coyotes. However, it has not been described in wild carnivores in South Africa. The aim of this study was to evaluate whether black-backed jackals are a host for Spirocerca species and to provide a detailed description of the associated pathology. Jackals were also stratified according to age and the Spirocerca species recovered were characterized using molecular techniques...
August 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28814259/may-gender-or-ethnicity-affect-delta-over-baseline-values-obtained-by-13-c-urea-breath-test
#15
Carmine Petruzziello, Dario Sinatti, Maria Gnarra, Alessio Migneco, Valentina Tesori, Cristina Graziani, Antonio Gasbarrini, Francesco Franceschi, Veronica Ojetti
INTRODUCTION: 13C-urea breath test (UBT) is a non-invasive test for detecting active H.pylori infection. Previous studies showed a correlation of delta over baseline (DOB) values with bacterial load, mucosal inflammation and successful eradication. Gender has been shown to affect DOB in children. Aim of our study was to verify whether gender or ethnicity affects DOB in adults. PATIENTS AND METHODS: We retrospectively analyzed data of 2922 patients (1024M/1898F mean age 47±15 years) that underwent UBT in our outpatient unit, from October 2015 to October 2016...
August 16, 2017: Reviews on Recent Clinical Trials
https://www.readbyqxmd.com/read/28814110/engaging-hiv-positive-clients-in-care-acceptability-and-mechanisms-of-action-of-a-peer-navigation-program-in-south-africa
#16
Wayne T Steward, Jeri Sumitani, Mary E Moran, Mary-Jane Ratlhagana, Jessica L Morris, Lebogang Isidoro, Jennifer M Gilvydis, John Tumbo, Jessica Grignon, Scott Barnhart, Sheri A Lippman
Antiretroviral therapy (ART) could curtail the HIV epidemic, but its impact is diminished by low uptake. We developed a peer navigation program to enhance engagement in HIV care, ART adherence, and behavioral prevention. In preparation for a randomized controlled trial, the program was piloted over four months at two primary health clinics in South Africa's North West Province. Newly diagnosed, HIV-positive clients met regularly with navigators to address barriers to care, adherence, and prevention. To assess program acceptability and feasibility and characterize the mechanisms of action, we surveyed 25 clients who completed navigation services and conducted interviews with 10 clients, four navigators, and five clinic providers...
August 16, 2017: AIDS Care
https://www.readbyqxmd.com/read/28813440/invasive-australian-acacia-seed-banks-size-and-relationship-with-stem-diameter-in-the-presence-of-gall-forming-biological-control-agents
#17
Matthys Strydom, Ruan Veldtman, Mzabalazo Z Ngwenya, Karen J Esler
Australian Acacia are invasive in many parts of the world. Despite significant mechanical and biological efforts to control their invasion and spread, soil-stored seed banks prevent their effective and sustained removal. In response South Africa has had a strong focus on employing seed reducing biological control agents to deal with Australian Acacia invasion, a programme that is considered as being successful. To provide a predictive understanding for their management, seed banks of four invasive Australian acacia species (Acacia longifolia, A...
2017: PloS One
https://www.readbyqxmd.com/read/28812815/stakeholders-perspectives-on-the-success-drivers-in-ghana-s-national-health-insurance-scheme-identifying-policy-translation-issues
#18
Adam Fusheini, Gordon Marnoch, Ann Marie Gray
BACKGROUND: Ghana's National Health Insurance Scheme (NHIS), established by an Act of Parliament (Act 650), in 2003 and since replaced by Act 852 of 2012 remains, in African terms, unprecedented in terms of growth and coverage. As a result, the scheme has received praise for its associated legal reforms, clinical audit mechanisms and for serving as a hub for knowledge sharing and learning within the context of South-South cooperation. The scheme continues to shape national health insurance thinking in Africa...
October 1, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812804/barriers-to-the-implementation-of-the-health-and-rehabilitation-articles-of-the-united-nations-convention-on-the-rights-of-persons-with-disabilities-in-south-africa
#19
Meghan Hussey, Malcolm MacLachlan, Gubela Mji
BACKGROUND: The United Nations (UN) Convention on the Rights of Persons with Disabilities (CRPD) is a milestone in the recognition of the human rights of persons with disabilities, including the right to health and rehabilitation. South Africa has signed and ratified the CRPD but still has a long way to go in reforming policies and systems in order to be in compliance with the convention. This paper seeks to fill a gap in the literature by exploring what the barriers to the implementation of the health and rehabilitation articles of the CRPD are, as identified by representatives of the disability community...
August 28, 2016: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812648/fungus-like-mycelial-fossils-in-2-4-billion-year-old-vesicular-basalt
#20
Stefan Bengtson, Birger Rasmussen, Magnus Ivarsson, Janet Muhling, Curt Broman, Federica Marone, Marco Stampanoni, Andrey Bekker
Fungi have recently been found to comprise a significant part of the deep biosphere in oceanic sediments and crustal rocks. Fossils occupying fractures and pores in Phanerozoic volcanics indicate that this habitat is at least 400 million years old, but its origin may be considerably older. A 2.4-billion-year-old basalt from the Palaeoproterozoic Ongeluk Formation in South Africa contains filamentous fossils in vesicles and fractures. The filaments form mycelium-like structures growing from a basal film attached to the internal rock surfaces...
April 24, 2017: Nature ecology & evolution
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