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https://www.readbyqxmd.com/read/28526075/testing-times-trends-in-availability-price-and-market-share-of-malaria-diagnostics-in-the-public-and-private-healthcare-sector-across-eight-sub-saharan-african-countries-from-2009-to-2015
#1
Kara Hanson, Catherine Goodman
BACKGROUND: The World Health Organization guidelines have recommended that all cases of suspected malaria should receive a confirmatory test with microscopy or a malaria rapid diagnostic test (RDT), however evidence from sub-Saharan Africa (SSA) illustrates that only one-third of children under five with a recent fever received a test. The aim of this study was to evaluate availability, price and market share of microscopy and RDT from 2009/11 to 2014/15 in 8 SSA countries, to better understand barriers to improving access to malaria confirmatory testing in the public and private health sectors...
May 19, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28522856/diagnosing-congenital-malaria-in-a-high-transmission-setting-clinical-relevance-and-usefulness-of-p-falciparum-hrp2-based-testing
#2
Hamtandi Magloire Natama, Delwendé Florence Ouedraogo, Hermann Sorgho, Eduard Rovira-Vallbona, Elisa Serra-Casas, M Athanase Somé, Maminata Coulibaly-Traoré, Petra F Mens, Luc Kestens, Halidou Tinto, Anna Rosanas-Urgell
Congenital malaria diagnosis is challenging due to frequently observed low parasite density infections, while their clinical relevance during early infancy is not well characterized. In Nanoro health district (Burkina Faso), we determined the prevalence of congenital malaria by real-time quantitative PCR and we assessed the performance of rapid diagnosis test (RDT) and light microscopy (LM) to detect Plasmodium falciparum infections in cord-blood samples. In addition, we examined the usefulness of P. falciparum Histidine Rich Protein2 (PfHRP2) as surrogate biomarker of infection and explored association between congenital malaria and clinical outcomes...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521904/make-immunological-peace-not-war-potential-applications-of-tolerogenic-dendritic-cells
#3
EDITORIAL
Emma Louise Walton
In this issue of the Biomedical Journal, we explore the powerful immunosuppressive properties of tolerogenic dendritic cells and discuss their potential to bring about lifelong tolerance in transplantation and autoimmune disease. We also highlight an exciting new development in the field of malaria diagnosis that could facilitate early detection of the disease.
April 2017: Biomedical Journal
https://www.readbyqxmd.com/read/28521900/diagnosis-of-malarial-infection-using-change-in-properties-of-optically-trapped-red-blood-cells
#4
Apurba Paul, Ponnan Padmapriya, Vasant Natarajan
BACKGROUND: In previous work studying the properties of red blood cells (RBCs) held in an optical tweezers trap, we observed an increase in the spectrum of Brownian fluctuations for RBCs from a Plasmodium falciparum culture-due to increased rigidity of the cells-compared to normal RBCs. We wanted to extend the study to patient samples, since the earlier work was done with cultures grown in the lab. METHODS: Individual RBCs were held in an optical-tweezers trap. Its position fluctuations were measured and the power spectrum determined...
April 2017: Biomedical Journal
https://www.readbyqxmd.com/read/28521811/the-malaria-testing-and-treatment-landscape-in-mainland-tanzania-2016
#5
Daniel Michael, Sigsbert Patila Mkunde
BACKGROUND: Understanding the key characteristics of malaria testing and treatment is essential to the control of a disease that continues to pose a major risk of morbidity and mortality in mainland Tanzania, with evidence of a resurgence of the disease in recent years. The introduction of artemisinin combination therapy (ACT) as the first-line treatment for malaria, alongside policies to promote rational case management following testing, highlights the need for evidence of anti-malarial and testing markets in the country...
April 24, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28521798/use-of-malaria-rdts-in-various-health-contexts-across-sub-saharan-africa-a-systematic-review
#6
Matthew R Boyce, Wendy P O'Meara
BACKGROUND: The World Health Organization recommends parasitological confirmation of malaria prior to treatment. Malaria rapid diagnostic tests (RDTs) represent one diagnostic method that is used in a variety of contexts to overcome limitations of other diagnostic techniques. Malaria RDTs increase the availability and feasibility of accurate diagnosis and may result in improved quality of care. Though RDTs are used in a variety of contexts, no studies have compared how well or effectively RDTs are used across these contexts...
May 18, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28507567/performance-of-pfhrp2-versus-pldh-antigen-rapid-diagnostic-tests-for-the-detection-of-plasmodium-falciparum-a-systematic-review-and-meta-analysis
#7
REVIEW
Bo Li, Zhiqiang Sun, Xiaohan Li, Xiaoxi Li, Han Wang, Weijiao Chen, Peng Chen, Mengran Qiao, Yuanli Mao
INTRODUCTION: There have been many inconsistent reports about the performance of histidine-rich protein 2 (HRP2) and lactate dehydrogenase (LDH) antigens as rapid diagnostic tests (RDTs) for the diagnosis of past Plasmodium falciparum infections. This meta-analysis was performed to determine the performance of pfHRP2 versus pLDH antigen RDTs in the detection of P. falciparum. MATERIAL AND METHODS: After a systematic review of related studies, Meta-DiSc 1.4 software was used to calculate the pooled sensitivity, specificity, positive likelihood ratio (PLR), negative likelihood ratio (NLR), and diagnostic odds ratio (DOR)...
April 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28500813/quality-of-case-management-for-pneumonia-and-diarrhea-among-children-seen-at-health-facilities-in-southern-malawi
#8
Miwako Kobayashi, Dyson Mwandama, Humphreys Nsona, Ruth J Namuyinga, Monica P Shah, Andrew Bauleni, Jodi Vanden Eng, Alexander K Rowe, Don P Mathanga, Laura C Steinhardt
AbstractPneumonia and diarrhea are leading causes of child deaths in Malawi. Guidelines to manage childhood illnesses in resource-poor settings exist, but studies have reported low health-care worker (HCW) adherence to guidelines. We conducted a health facility survey from January to March 2015 to assess HCW management of pneumonia and diarrhea in children < 5 years of age in southern Malawi, and to determine factors associated with case management quality. Descriptive statistics and multivariable logistic regression models examined patient, HCW, and health facility factors associated with recommended pneumonia and diarrhea management, using Malawi's national guidelines as the gold standard...
May 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28497225/development-of-a-rapid-hrm-qpcr-for-the-diagnosis-of-the-four-most-prevalent-plasmodium-lineages-in-new-zealand
#9
E R Schoener, S Hunter, L Howe
Although wildlife rehabilitation and translocations are important tools in wildlife conservation in New Zealand, disease screening of birds has not been standardized. Additionally, the results of the screening programmes are often difficult to interpret due to missing disease data in resident or translocating avian populations. Molecular methods have become the most widespread method for diagnosing avian malaria (Plasmodium spp.) infections. However, these methods can be time-consuming, expensive and are less specific in diagnosing mixed infections...
May 11, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28487213/long-term-health-outcomes-among-returned-peace-corps-volunteers-after-malaria-prophylaxis-1995-2014
#10
Kathrine R Tan, Susan J Henderson, John Williamson, Rennie W Ferguson, Thomas M Wilkinson, Paul Jung, Paul M Arguin
BACKGROUND: A primary reason for non-adherence to malaria chemoprophylaxis is fear of latent side effects. We examined latent effects of malaria chemoprophylaxis among Returned Peace Corps Volunteers (RPCVs). METHODS: During July 18-September 16, 2016, RPCVs who served during 1995-2014 with an e-mail address in Peace Corps' RPCV database were invited to take an internet-based survey on malaria prophylaxis and medical diagnoses. "Good adherence" meant taking prophylaxis "as prescribed" or "most of the time...
May 6, 2017: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/28482899/improving-access-to-health-care-amongst-vulnerable-populations-a-qualitative-study-of-village-malaria-workers-in-kampot-cambodia
#11
Marco Liverani, Chea Nguon, Ra Sok, Daro Kim, Panharith Nou, Sokhan Nguon, Shunmay Yeung
BACKGROUND: There is growing interest in the expansion of community health workers programmes in low- and middle-income countries as a cost-effective approach to address shortages of health professionals. However, our understanding of the reception of large-scale programmes and how to improve them remains limited, with knowledge gaps about factors that may promote or discourage equitable access to services. This paper examines the case of the Village Malaria Workers (VMW) programme in Cambodia, an extensive community-based intervention for the management of malaria cases in remote rural areas...
May 8, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28479922/laboratory-diagnosis-of-malaria-comparison-of-manual-and-automated-diagnostic-tests
#12
Samina Naz Mukry, Madiha Saud, Gul Sufaida, Kashif Shaikh, Arshi Naz, Tahir Sultan Shamsi
Malaria is the second most prevalent disease in Pakistan resulting in ~30,000 annual deaths. In endemic countries like Pakistan precise and timely diagnosis of malaria is imperative to overcome the associated risks of fatal outcomes. Malarial parasite was screened in 128 malaria suspected patients and 150 healthy controls, by species-specific PCR, microscopy of blood smears, hemoanalyzer Sysmex XE-2100, and rapid test devices (First Response Malaria® and ICT Malaria Combo®). The microscopy detected MP in 126 samples (parasite load/µl 386-53712/µl); 71...
2017: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/28479634/clinical-management-of-children-with-fever-a-cross-sectional-study-of-quality-of-care-in-rural-zambia
#13
Karsten Lunze, Godfrey Biemba, J Joseph Lawrence, William B MacLeod, Kojo Yeboah-Antwi, Kebby Musokotwane, Toyin Ajayi, Simon Mutembo, Chilunga Puta, Duncan Earle, Rick Steketee, Davidson H Hamer
OBJECTIVE: To evaluate current practices and standards of evaluation and treatment of childhood febrile illness in Southern Province, Zambia. METHODS: From November to December 2013, we conducted a cross-sectional survey of facilities and health workers and we observed the health workers' interactions with febrile children and their caregivers. The facility survey recorded level of staffing, health services provided by the facility, availability and adequacy of medical equipment, availability of basic drugs and supplies and availability of treatment charts and guidelines...
May 1, 2017: Bulletin of the World Health Organization
https://www.readbyqxmd.com/read/28465184/comparing-imported-malaria-in-adults-and-children-presenting-to-an-italian-teaching-hospital-a-10-year-retrospective-study
#14
Dora Luise, Daniele Donà, Federica Visentin, Giulia Marini, Carlo Giaquinto, Annamaria Cattelan
BACKGROUND: Malaria is not endemic in Italy, but it still represents an important threat to the travelers' health. With this study we wanted to compare the characteristics of imported malaria between adults and children. METHOD: This retrospective observational study includes all patients admitted to the Infectious Diseases Unit and in the Pediatric Department of Padua (Italy), and discharged with a diagnosis of malaria from 2005 to 2015. The variables considered are epidemiological and clinical...
April 29, 2017: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/28464837/the-correlation-between-malaria-rdt-paracheck-pf-%C3%A2-faint-test-bands-and-microscopy-in-the-diagnosis-of-malaria-in-malawi
#15
Ryoko Makuuchi, Sandy Jere, Nobuchika Hasejima, Thoms Chigeda, January Gausi
BACKGROUND: Faint test bands of Paracheck Pf.® are interpreted as malaria positive according to world health organization (WHO) guideline. However if there are conspicuous number of faint test bands, a performance of Paracheck Pf.® could be influenced depending on whether interpreting faint test bands as malaria positive or negative. Finding out the frequency and accurate interpretation of faint test bands are important to prevent the overdiagnosis and drug resistance. METHODS: A cross-sectional, descriptive study was conducted to find out the frequency of faint test bands and evaluate the performance of Paracheck Pf...
May 2, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28464825/continuous-determination-of-blood-glucose-in-children-admitted-with-malaria-in-a-rural-hospital-in-mozambique
#16
Lola Madrid, Antonio Sitoe, Rosauro Varo, Tacilta Nhampossa, Miguel Lanaspa, Abel Nhama, Sozinho Acácio, Isolina Riaño, Aina Casellas, Quique Bassat
BACKGROUND: Hypoglycaemia is a frequent complication among admitted children, particularly in malaria-endemic areas. This study aimed to estimate the occurrence of hypoglycaemia not only upon admission but throughout the first 72 h of hospitalization in children admitted with malaria. METHODS: A simple pilot study to continuously monitor glycaemia in children aged 0-10 years, admitted with malaria in a rural hospital was conducted in Southern Mozambique by inserting continuous glucose monitors (CGMs) in subcutaneous tissue of the abdominal area, producing glycaemia readings every 5 min...
May 2, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28459219/a-combined-strategy-for-screening-a-clustered-mobile-population-returning-from-highly-endemic-areas-for-plasmodium-falciparum
#17
Mei Li, Jun Li, Zhigui Xia, Ning Xiao, Weikang Jiang, Yongkang Wen
INTRODUCTION: Early and accurate diagnosis of imported malaria cases in clusters is crucial for protecting the health of patients and local populations, especially confirmed parasitic persons who are asymptomatic. METHODOLOGY: A total of 226 gold miners who had stayed in highly endemic areas of Ghana for more than six months and returned in clusters were selected randomly. Blood samples from them were tested with microscopy, nest polymerase chain reaction, and rapid diagnostic test (RDT)...
April 30, 2017: Journal of Infection in Developing Countries
https://www.readbyqxmd.com/read/28453718/cost-effectiveness-analysis-of-malaria-rapid-diagnostic-tests-for-appropriate-treatment-of-malaria-at-the-community-level-in-uganda
#18
Kristian S Hansen, Richard Ndyomugyenyi, Pascal Magnussen, Sham Lal, Siân E Clarke
In Sub-Saharan Africa, malaria remains a major cause of morbidity and mortality among children under 5, due to lack of access to prompt and appropriate diagnosis and treatment. Many countries have scaled-up community health workers (CHWs) as a strategy towards improving access. The present study was a cost-effectiveness analysis of the introduction of malaria rapid diagnostic tests (mRDTs) performed by CHWs in two areas of moderate-to-high and low malaria transmission in rural Uganda. CHWs were trained to perform mRDTs and treat children with artemisinin-based combination therapy (ACT) in the intervention arm while CHWs offered treatment based on presumptive diagnosis in the control arm...
June 1, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/28442456/the-malaria-system-microapp-a-new-mobile-device-based-tool-for-malaria-diagnosis
#19
Allisson Dantas Oliveira, Clara Prats, Mateu Espasa, Francesc Zarzuela Serrat, Cristina Montañola Sales, Aroa Silgado, Daniel Lopez Codina, Mercia Eliane Arruda, Jordi Gomez I Prat, Jones Albuquerque
BACKGROUND: Malaria is a public health problem that affects remote areas worldwide. Climate change has contributed to the problem by allowing for the survival of Anopheles in previously uninhabited areas. As such, several groups have made developing news systems for the automated diagnosis of malaria a priority. OBJECTIVE: The objective of this study was to develop a new, automated, mobile device-based diagnostic system for malaria. The system uses Giemsa-stained peripheral blood samples combined with light microscopy to identify the Plasmodium falciparum species in the ring stage of development...
April 25, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28442114/nested-multiplex-pcr-for-identification-and-detection-of-human-plasmodium-species-including-plasmodium-knowlesi
#20
Maria Miguel-Oteo, Adela I Jiram, Thuy H Ta-Tang, Marta Lanza, Shamilah Hisam, José M Rubio
OBJECTIVE: To develop a new technique for diagnosis of Plasmodium knowlesi and at the same time to be able to discriminate among the diverse species of Plasmodium causing human malaria. METHODS: In this study the nested multiplex malaria PCR was redesigned, targeting the 18S rRNA gene, to identify the fifth human Plasmodium species, Plasmodium knowlesi, together with the other human Plasmodium (Plasmodium falciparum, Plasmodium vivax, Plasmodium ovale and Plasmodium malariae) by amplified fragment size using only two amplification processes and including an internal reaction control to avoid false negatives...
March 2017: Asian Pacific Journal of Tropical Medicine
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