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https://www.readbyqxmd.com/read/28545155/rapid-diagnostic-tests-for-typhoid-and-paratyphoid-enteric-fever
#1
REVIEW
Lalith Wijedoru, Sue Mallett, Christopher M Parry
BACKGROUND: Differentiating both typhoid (Salmonella Typhi) and paratyphoid (Salmonella Paratyphi A) infection from other causes of fever in endemic areas is a diagnostic challenge. Although commercial point-of-care rapid diagnostic tests (RDTs) for enteric fever are available as alternatives to the current reference standard test of blood or bone marrow culture, or to the widely used Widal Test, their diagnostic accuracy is unclear. If accurate, they could potentially replace blood culture as the World Health Organization (WHO)-recommended main diagnostic test for enteric fever...
May 26, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28545149/persistence-of-lineage-iv-peste-des-petits-ruminants-virus-within-israel-since-1993-an-evolutionary-perspective
#2
Brian Clarke, Mana Mahapatra, Orly Friedgut, Velizar Bumbarov, Satya Parida
Peste-des-petits ruminants (PPR) is one of the most important infectious diseases of domesticated small ruminants. From the initial identification in 1942 in West Africa, PPR virus (PPRV) has spread throughout much of the developing world. PPRV is now considered endemic throughout Africa, with the notable exception of South Africa, the Middle-East and Israel, as well as South-, East-, and Central Asia. Despite this widespread dispersal, the evolution and transmission of PPRV in endemic populations is not well understood...
2017: PloS One
https://www.readbyqxmd.com/read/28545034/characterization-of-sudan-ebolavirus-infection-in-ferrets
#3
Andrea Kroeker, Shihua He, Marc-Antoine de La Vega, Gary Wong, Carissa Embury-Hyatt, Xiangguo Qiu
Sudan virus (SUDV) outbreaks in Africa are highly lethal; however, the development and testing of novel antivirals and vaccines for this virus has been limited by a lack of suitable animal models. Non-human primates (NHP) remain the gold standard for modeling filovirus disease, but they are not conducive to screening large numbers of experimental compounds and should only be used to test the most promising candidates. Therefore, other smaller animal models are a valuable asset. We have recently developed a guinea-pig adapted SUDV virus that is lethal in guinea pigs...
May 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28544789/determinants-of-recent-aflatoxin-exposure-among-pregnant-women-in-rural-zimbabwe
#4
Laura E Smith, Mduduzi N N Mbuya, Andrew J Prendergast, Paul C Turner, Sandra Ruboko, Jean H Humphrey, Rebecca J Nelson, Ancikaria Chigumira, George Kembo, Rebecca J Stoltzfus
SCOPE: Aflatoxins are toxic secondary metabolites of Aspergillus species that contaminate staple foods such as maize and groundnuts. Aflatoxin exposure during pregnancy has been associated with adverse birth outcomes in limited-scale surveys in sub-Saharan Africa. The objective of this study was to describe the determinants of aflatoxin exposure, using urinary aflatoxin M1 (AFM1) biomarkers and data generated by the Sanitation Hygiene Infant Nutrition Efficacy (SHINE) trial for rural Zimbabwean women in early pregnancy...
May 22, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28544283/transplantation-in-africa
#5
EDITORIAL
Lara C Pullen
No abstract text is available yet for this article.
June 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28544136/conceptualizations-of-fairness-and-legitimacy-in-the-context-of-ethiopian-health-priority-setting-reflections-on-the-applicability-of-accountability-for-reasonableness
#6
Kadia Petricca, Asfaw Bekele
A critical element in building stronger health systems involves strengthening good governance to build capacity for transparent and fair health planning and priority setting. Over the past 20 years, the ethical framework Accountability for Reasonableness (A4R) has been a prominent conceptual guide in strengthening fair and legitimate processes of health decision-making. While many of the principles embedded within the framework are congruent with Western conceptualizations of what constitutes procedural fairness, there is a paucity in the literature that captures the degree of resonance between these principles and the views of decision makers from non-Western settings; particularly in Africa, where many countries have only recently, within the last 20-30 years, become more democratic...
May 22, 2017: Developing World Bioethics
https://www.readbyqxmd.com/read/28544092/fever-and-multiple-eschars-after-an-african-safari-report-of-three-cases
#7
Fátima Albízuri Prado, Alba Sánchez, Marta Feito, Ander Mayor, Ana Rodriguez, Raúl de Lucas
African tick-bite fever (ATBF), a tickborne disease endemic in rural areas of sub-Saharan Africa and the West Indies caused by Rickettsia africae, has been recognized as an emerging health problem in recent years. ATBF has been reported as the second most commonly documented etiology of fever, after malaria, in travelers who return ill from sub-Saharan Africa. Most cases reported in the literature occurred in middle-aged adults, so the incidence of ATBF in children is unclear. We report a cluster of three cases of ATBF that occurred in children ages 7 to 16 years after returning from a game-hunting safari in South Africa...
May 25, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28543867/an-age-dependent-fitness-cost-of-migration-old-trans-saharan-migrating-spoonbills-breed-later-than-those-staying-in-europe-and-late-breeders-have-lower-recruitment
#8
Tamar Lok, Linde Veldhoen, Otto Overdijk, Joost M Tinbergen, Theunis Piersma
Migration is a widespread phenomenon in the animal kingdom. On the basis of the considerable variation that exists between and within species, and even within populations, we may be able to infer the (age- and sex-specific) ecological trade-offs and constraints moulding migration systems from assessments of fitness associated with migration and wintering in different areas. During three consecutive breeding seasons, we compared the reproductive performance (timing of breeding, breeding success, chick body condition and post-fledging survival) of Eurasian spoonbills Platalea leucorodia that breed at a single breeding site in The Netherlands, but migrate different distances (ca...
May 25, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28543089/treatments-for-people-living-with-schizophrenia-in-sub-saharan-africa-an-adapted-realist-review
#9
REVIEW
S Chidarikire, M Cross, I Skinner, M Cleary
AIM: To identify the treatments and interventions available and their impact on people living with schizophrenia in Sub-Saharan Africa. BACKGROUND: Help-seeking behaviour and the choice of treatment are largely influenced by socio-cultural factors and beliefs about the causes of mental illness. This review addresses the gap in knowledge regarding the treatment options available to people living with schizophrenia in Sub-Saharan Africa. DESIGN: Adapted realist literature review...
May 25, 2017: International Nursing Review
https://www.readbyqxmd.com/read/28542915/effect-of-aqueous-extract-and-anthocyanins-of-calyces-of-hibiscus-sabdariffa-malvaceae-in-rats-with-adenine-induced-chronic-kidney-disease
#10
Badreldin H Ali, Lucie Cahliková, Lubomir Opletal, Turan Karaca, Priyadarsini Manoj, Aishwarya Ramkumar, Yousuf M Al Suleimani, Mohammed Al Za'abi, Abderrahim Nemmar, Lucie Chocholousova-Havlikova, Miroslav Locarek, Tomas Siatka, Gerald Blunden
OBJECTIVES: The aim of this work was to assess the possible beneficial effects of aqueous extracts of Hibiscus sabdariffa L. calyces and anthocyanins isolated therefrom in an adenine-induced chronic kidney disease (CKD) model. METHODS: Rats were orally given, for 28 consecutive days, either adenine alone or together with either aqueous extract of H. sabdariffa calyces (5 and 10%) or anthocyanins (50, 100 and 200 mg/kg of anthocyanin concentrate). For comparative purposes, two groups of rats were given lisinopril (10 mg/kg)...
May 23, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28542841/blood-donors-perceptions-motivators-and-deterrents-in-sub-saharan-africa-a-scoping-review-of-evidence
#11
REVIEW
Lucy Asamoah-Akuoko, Oliver W Hassall, Imelda Bates, Henrik Ullum
Achieving an adequate blood supply in Sub-Saharan Africa (SSA) through donor mobilization and retention is crucial. Factors that motivate or deter blood donors vary according to beliefs and social norms. Understanding the factors that influence blood donation behaviour in SSA is vital to developing effective strategies to address blood donor motivation and retention. This review of 35 studies from 16 SSA countries collates available evidence concerning the perceptions, motivators and deterrents that influence blood donors in SSA...
May 22, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28542796/interleukin-2-as-an-adjunct-to-antiretroviral-therapy-for-hiv-positive-adults
#12
REVIEW
Jennifer Onwumeh, Charles I Okwundu, Tamara Kredo
BACKGROUND: Human immunodeficiency virus (HIV) continues to be a leading cause of morbidity and mortality, particularly in sub-Saharan Africa. Although antiretroviral drugs have helped to improve the quality of life and life expectancy of HIV-positive individuals, there is still a need to explore other interventions that will help to further reduce the disease burden. One potential strategy is the use of interleukin-2 (IL-2) in combination with antiretroviral therapy (ART). IL-2 is a cytokine that regulates the proliferation and differentiation of lymphocytes and may help to boost the immune system...
May 25, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28542647/estimating-%C3%AE-15n-fractionation-and-adjusting-the-lipid-correction-equation-using-southern-african-freshwater-fishes
#13
Geraldine C Taylor, Jaclyn M Hill, Michelle C Jackson, Richard A Peel, Olaf L F Weyl
Stable isotope analysis is an important tool for characterising food web structure; however, interpretation of isotope data can often be flawed. For instance, lipid normalisation and trophic fractionation values are often assumed to be constant, but can vary considerably between ecosystems, species and tissues. Here, previously determined lipid normalisation equations and trophic fractionation values were re-evaluated using freshwater fish species from three rivers in the Upper Zambezian floodplain ecoregion in southern Africa...
2017: PloS One
https://www.readbyqxmd.com/read/28542624/pathogenic-seedborne-viruses-are-rare-but-phaseolus-vulgaris-endornaviruses-are-common-in-bean-varieties-grown-in-nicaragua-and-tanzania
#14
Noora Nordenstedt, Delfia Marcenaro, Daudi Chilagane, Beatrice Mwaipopo, Minna-Liisa Rajamäki, Susan Nchimbi-Msolla, Paul J R Njau, Deusdedith R Mbanzibwa, Jari P T Valkonen
Common bean (Phaseolus vulgaris) is an annual grain legume that was domesticated in Mesoamerica (Central America) and the Andes. It is currently grown widely also on other continents including Africa. We surveyed seedborne viruses in new common bean varieties introduced to Nicaragua (Central America) and in landraces and improved varieties grown in Tanzania (eastern Africa). Bean seeds, harvested from Nicaragua and Tanzania, were grown in insect-controlled greenhouse or screenhouse, respectively, to obtain leaf material for virus testing...
2017: PloS One
https://www.readbyqxmd.com/read/28542463/insights-into-reston-virus-spillovers-and-adaption-from-virus-whole-genome-sequences
#15
César G Albariño, Lisa Wiggleton Guerrero, Harley M Jenks, Ayan K Chakrabarti, Thomas G Ksiazek, Pierre E Rollin, Stuart T Nichol
Reston virus (family Filoviridae) is unique among the viruses of the Ebolavirus genus in that it is considered non-pathogenic in humans, in contrast to the other members which are highly virulent. The virus has however, been associated with several outbreaks of highly lethal hemorrhagic fever in non-human primates (NHPs), specifically cynomolgus monkeys (Macaca fascicularis) originating in the Philippines. In addition, Reston virus has been isolated from domestic pigs in the Philippines. To better understand virus spillover events and potential adaption to new hosts, the whole genome sequences of representative Reston virus isolates were obtained using a next generation sequencing (NGS) approach and comparative genomic analysis and virus fitness analyses were performed...
2017: PloS One
https://www.readbyqxmd.com/read/28542324/epidemiology-of-influenza-b-yamagata-and-b-victoria-lineages-in-south-africa-2005-2014
#16
Mpho Seleka, Florette K Treurnicht, Stefano Tempia, Orienka Hellferscee, Senzo Mtshali, Adam L Cohen, Amelia Buys, Johanna M McAnerney, Terry G Besselaar, Marthi Pretorius, Anne von Gottberg, Sibongile Walaza, Cheryl Cohen, Shabir A Madhi, Marietjie Venter
BACKGROUND: Studies describing the epidemiology of influenza B lineages in South Africa are lacking. METHODS: We conducted a prospective study to describe the circulation of influenza B/Victoria and B/Yamagata lineages among patients of all ages enrolled in South Africa through three respiratory illness surveillance systems between 2005 and 2014: (i) the Viral Watch (VW) program enrolled outpatients with influenza-like illness (ILI) from private healthcare facilities during 2005-2014; (ii) the influenza-like illnesses program enrolled outpatients in public healthcare clinics (ILI/PHC) during 2012-2014; and (iii) the severe acute respiratory illnesses (SARI) program enrolled inpatients from public hospitals during 2009-2014...
2017: PloS One
https://www.readbyqxmd.com/read/28542309/predictors-of-loss-to-follow-up-among-patients-on-art-at-a-rural-hospital-in-kwazulu-natal-south-africa
#17
Rachel Arnesen, Anthony P Moll, Sheela V Shenoi
INTRODUCTION: Improved HIV outcomes as a result of expanded antiretroviral therapy (ART) access is threatened by increasing rates of loss to follow up (LTFU) among those on ART, largely reported in urban populations. Some reports suggest that LTFU rates are overestimated due to patient movement to other facilities and inadequate medical records. STUDY OBJECTIVE: To define the proportion disengaging from HIV care as well as the characteristics of those LTFU in order to design and implement appropriate interventions to increase retention...
2017: PloS One
https://www.readbyqxmd.com/read/28542305/patterns-of-change-and-continuity-in-ochre-use-during-the-late-middle-stone-age-of-the-horn-of-africa-the-porc-epic-cave-record
#18
Daniela Eugenia Rosso, Francesco d'Errico, Alain Queffelec
Ochre is found at numerous Middle Stone Age (MSA) sites and plays a key role in early modern human archaeology. Here we analyse the largest known East African MSA ochre assemblage, comprising 40 kg of ochre, found at Porc-Epic Cave, Ethiopia, spanning a period of at least 4,500 years. Visual characterisation of ochre types, microscopic identification of traces of modification, morphological and morphometric analysis of ochre pieces and modified areas, experimental reproduction of grinding processes, surface texture analysis of archaeological and experimentally ground ochre facets, laser granulometry of ochre powder produced experimentally on different grindstones and by Hamar and Ovahimba women from Ethiopia and Namibia respectively, were, for the first time, combined to explore diachronic shifts in ochre processing technology...
2017: PloS One
https://www.readbyqxmd.com/read/28542255/detection-of-mycobacterium-tuberculosis-from-the-stool-of-hiv-sero-positive-individuals-suspected-of-pulmonary-tuberculosis
#19
Gizaw E Abaye, Tamrat Abebe, Adane Worku, Debela Tolessa, Gobena Ameni, Adane Mihret
BACKGROUND: The impact of tuberculosis (TB) is exacerbated in Africa because of the human immunodeficiency virus (HIV) pandemic. Pulmonary tuberculosis (PTB) diagnosis is difficult in HIV-infected patients and negative sputum results are more common which leads to diagnostic delay and increases morbidity and mortality. Extra-pulmonary samples such as stool may be easier to obtain and our approach may therefore significantly improve PTB detection in people living with HIV. OBJECTIVE: To detect Mycobacterium tuberculosis from the stool of HIV sero-positive individuals suspected of pulmonary TB...
2017: PloS One
https://www.readbyqxmd.com/read/28542176/measuring-personal-beliefs-and-perceived-norms-about-intimate-partner-violence-population-based-survey-experiment-in-rural-uganda
#20
Alexander C Tsai, Bernard Kakuhikire, Jessica M Perkins, Dagmar Vořechovská, Amy Q McDonough, Elizabeth L Ogburn, Jordan M Downey, David R Bangsberg
BACKGROUND: Demographic and Health Surveys (DHS) conducted throughout sub-Saharan Africa indicate there is widespread acceptance of intimate partner violence, contributing to an adverse health risk environment for women. While qualitative studies suggest important limitations in the accuracy of the DHS methods used to elicit attitudes toward intimate partner violence, to date there has been little experimental evidence from sub-Saharan Africa that can be brought to bear on this issue...
May 2017: PLoS Medicine
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