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Malaria surveillance

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https://www.readbyqxmd.com/read/28327180/an-assessment-of-national-surveillance-systems-for-malaria-elimination-in-the-asia-pacific
#1
Chris Erwin G Mercado, Nattwut Ekapirat, Arjen M Dondorp, Richard J Maude
BACKGROUND: Heads of Government from Asia and the Pacific have committed to a malaria-free region by 2030. In 2015, the total number of confirmed cases reported to the World Health Organization by 22 Asia Pacific countries was 2,461,025. However, this was likely a gross underestimate due in part to incidence data not being available from the wide variety of known sources. There is a recognized need for an accurate picture of malaria over time and space to support the goal of elimination...
March 21, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28327145/diagnostic-challenges-and-case-management-of-the-first-imported-case-of-plasmodium-knowlesi-in-sri-lanka
#2
A Dewanee Ranaweera, Manjula N Danansuriya, Kusumawathie Pahalagedera, W M Kumudunayana T de A W Gunasekera, Priyani Dharmawardena, Keng Wai Mak, Pei-Sze Jeslyn Wong, Mei-Zhi Irene Li, Cheong Huat Tan, Hapuarachchige C Hapuarachchi, Hema D B Herath, Deepika Fernando
BACKGROUND: Sri Lanka has achieved 'malaria-free' status and is now in the phase of prevention of re-introduction of malaria. Imported malaria remains a challenge to resurgence of the disease. The diagnostic challenges encountered and the rapid response initiated to manage a Plasmodium infection, which was later confirmed as Plasmodium knowlesi, the first reported case from Sri Lanka, is discussed. CASE PRESENTATION: An army officer who returned from Malaysia in October 2016 was found to be positive for Plasmodium both by microscopy and rapid diagnostic test (RDT) by the Anti Malaria Campaign Sri Lanka (AMC) during his third visit to a health care provider...
March 21, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28302168/comparison-of-the-diagnostic-performance-of-microscopic-examination-with-nested-polymerase-chain-reaction-for-optimum-malaria-diagnosis-in-upper-myanmar
#3
Jung-Mi Kang, Pyo-Yun Cho, Mya Moe, Jinyoung Lee, Hojong Jun, Hyeong-Woo Lee, Seong Kyu Ahn, Tae Im Kim, Jhang Ho Pak, Moe Kyaw Myint, Khin Lin, Tong-Soo Kim, Byoung-Kuk Na
BACKGROUND: Accurate diagnosis of Plasmodium infection is crucial for prompt malaria treatment and surveillance. Microscopic examination has been widely applied as the gold standard for malaria diagnosis in most part of malaria endemic areas, but its diagnostic value has been questioned, particularly in submicroscopic malaria. In this study, the diagnostic performance of microscopic examination and nested polymerase chain reaction (PCR) was evaluated to establish optimal malaria diagnosis method in Myanmar...
March 16, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28302108/confirmation-of-plasmodium-falciparum-in-vitro-resistance-to-monodesethylamodiaquine-and-chloroquine-in-dakar-senegal-in-2015
#4
Silman Diawara, Marylin Madamet, Mame Bou Kounta, Gora Lo, Khalifa Ababacar Wade, Aminata Nakoulima, Raymond Bercion, Rémy Amalvict, Mamadou Wague Gueye, Bécaye Fall, Bakary Diatta, Bruno Pradines
BACKGROUND: In response to increasing resistance to anti-malarial drugs, Senegal adopted artemisinin-based combination therapy (ACT) as the first-line treatment for uncomplicated malaria in 2006. However, resistance of Plasmodium falciparum parasites to artemisinin derivatives, characterized by delayed parasite clearance after treatment with ACT or artesunate monotherapy, has recently emerged and rapidly spread in Southeast Asia. After 10 years of stability with rates ranging from 5.6 to 11...
March 16, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28301474/histidine-rich-protein-2-pfhrp2-and-pfhrp3-gene-deletions-in-plasmodium-falciparum-isolates-from-select-sites-in-brazil-and-bolivia
#5
Giselle Maria Rachid Viana, Sheila Akinyi Okoth, Luciana Silva-Flannery, Danielle Regina Lima Barbosa, Alexandre Macedo de Oliveira, Ira F Goldman, Lindsay C Morton, Curtis Huber, Arletta Anez, Ricardo Luiz Dantas Machado, Luís Marcelo Aranha Camargo, Suiane Costa Negreiros do Valle, Marinete Marins Póvoa, Venkatachalam Udhayakumar, John W Barnwell
More than 80% of available malaria rapid diagnostic tests (RDTs) are based on the detection of histidine-rich protein-2 (PfHRP2) for diagnosis of Plasmodium falciparum malaria. Recent studies have shown the genes that code for this protein and its paralog, histidine-rich protein-3 (PfHRP3), are absent in parasites from the Peruvian Amazon Basin. Lack of PfHRP2 protein through deletion of the pfhrp2 gene leads to false-negative RDT results for P. falciparum. We have evaluated the extent of pfhrp2 and pfhrp3 gene deletions in a convenience sample of 198 isolates from six sites in three states across the Brazilian Amazon Basin (Acre, Rondonia and Para) and 25 isolates from two sites in Bolivia collected at different times between 2010 and 2012...
2017: PloS One
https://www.readbyqxmd.com/read/28299154/assessment-of-malaria-reporting-and-epidemic-preparedness-systems-in-health-facilities-in-eldoret-west-district-uasin-gishu-county-kenya
#6
Ruth C Kirinyet, Arthur S Ng'etich, Ahmad Juma
The most important factor in reducing the impact of an epidemic is a timely response with implementation of effective control measures at the point of detection. This study sought to assess the malaria reporting and epidemic preparedness systems of health facilities in Eldoret West District, Kenya. A cross-sectional study design was adapted. A census technique was used to select all the forty five health facilities in the district comprising of government, mission and non-governmental facilities. An interviewer administered questionnaire was used for data collection and analysis done using Stata...
August 17, 2016: Journal of Public Health in Africa
https://www.readbyqxmd.com/read/28298235/clinical-and-molecular-surveillance-of-drug-resistant-vivax-malaria-in-myanmar-2009-2016
#7
Myat Htut Nyunt, Jin-Hee Han, Bo Wang, Khin Myo Aye, Kyin Hla Aye, Seong-Kyun Lee, Ye Htut, Myat Phone Kyaw, Kay Thwe Han, Eun-Taek Han
BACKGROUND: One of the major challenges for control and elimination of malaria is ongoing spread and emergence of drug resistance. While epidemiology and surveillance of the drug resistance in falciparum malaria is being explored globally, there are few studies on drug resistance vivax malaria. METHODS: To assess the spread of drug-resistant vivax malaria in Myanmar, a multisite, prospective, longitudinal study with retrospective analysis of previous therapeutic efficacy studies, was conducted...
March 16, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28290948/mortality-surveillance-for-infectious-diseases-in-the-u-s-department-of-defense-1998-2013
#8
Robert N Potter, Ladd A Tremaine, Joel C Gaydos
INTRODUCTION: The Mortality Surveillance Division (MSD) of the U.S. Armed Forces Medical Examiner System was established in 1998 to improve surveillance for all military deaths although emphasizing deaths from infectious diseases. Establishment of the MSD was part of the 1997 Department of Defense initiative to improve surveillance and response for emerging infectious diseases. Before 1998, mortality surveillance was limited to compiling information from death certificates, a system that provided limited useful information and lacked the timeliness needed to take meaningful action to address emerging infectious disease threats...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28289248/antimalarial-drug-resistance-a-threat-to-malaria-elimination
#9
Didier Menard, Arjen Dondorp
Increasing antimalarial drug resistance once again threatens effective antimalarial drug treatment, malaria control, and elimination. Artemisinin combination therapies (ACTs) are first-line treatment for uncomplicated falciparum malaria in all endemic countries, yet partial resistance to artemisinins has emerged in the Greater Mekong Subregion. Concomitant emergence of partner drug resistance is now causing high ACT treatment failure rates in several areas. Genetic markers for artemisinin resistance and several of the partner drugs have been established, greatly facilitating surveillance...
March 13, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28283033/resting-and-feeding-preferences-of-anopheles-stephensi-in-an-urban-setting-perennial-for-malaria
#10
Shalu Thomas, Sangamithra Ravishankaran, N A Johnson Amala Justin, Aswin Asokan, Manu Thomas Mathai, Neena Valecha, Jacqui Montgomery, Matthew B Thomas, Alex Eapen
BACKGROUND: The Indian city of Chennai is endemic for malaria and the known local malaria vector is Anopheles stephensi. Plasmodium vivax is the predominant malaria parasite species, though Plasmodium falciparum is present at low levels. The urban ecotype of malaria prevails in Chennai with perennial transmission despite vector surveillance by the Urban Malaria Scheme (UMS) of the National Vector Borne Disease Control Programme (NVBDCP). Understanding the feeding and resting preferences, together with the transmission potential of adult vectors in the area is essential in effective planning and execution of improved vector control measures...
March 10, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28278416/arboviral-diseases-and-malaria-in-australia-2013-14-annual-report-of-the-national-arbovirus-and-malaria-advisory-committee
#11
Katrina E Knope, Mike Muller, Nina Kurucz, Stephen L Doggett, Rebecca Feldman, Cheryl A Johansen, Michaela Hobby, Sonya Bennett, Stacey Lynch, Angus Sly, Bart J Currie
This report describes the epidemiology of mosquito-borne diseases of public health importance in Australia during the 2013-14 season (1 July 2013 to 30 June 2014) and includes data from human notifications, sentinel chicken, vector and virus surveillance programs. The National Notifiable Diseases Surveillance System received notifications for 8,898 cases of disease transmitted by mosquitoes during the 2013-14 season. The Australasian alphaviruses Barmah Forest virus and Ross River virus accounted for 6,372 (72%) total notifications...
September 30, 2016: Communicable Diseases Intelligence Quarterly Report
https://www.readbyqxmd.com/read/28273989/healthcare-associated-infections-in-a-resource-limited-setting
#12
Chanaveerappa Bammigatti, Saikumar Doradla, Harish Narasimha Belgode, Harichandra Kumar, Rathinam Palamalai Swaminathan
INTRODUCTION: Health Care associated Infections (HAI) are the most common complications affecting the hospitalized patients. HAI are more common in developing and under developed countries. However, there are no systematic surveillance programs in these countries. AIM: To find out the burden, predisposing factors and multidrug resistant organisms causing HAI in a resource limited setting. MATERIALS AND METHODS: This prospective observational study was done at Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER)...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28270213/preliminary-survey-on-anopheles-species-distribution-in-botswana-shows-the-presence-of-anopheles-gambiae-and-anopheles-funestus-complexes
#13
Leabaneng Tawe, Pleasure Ramatlho, Kelebogile Waniwa, Charles W Muthoga, Ntebaleng Makate, Davis S Ntebela, Isaac K Quaye, Marco Pombi, Giacomo Maria Paganotti
BACKGROUND: Botswana is one of the four front line malaria elimination countries in Southern Africa, with malaria control activities that include routine vector control. Past and recent studies have shown that Anopheles arabiensis is the only known vector of Plasmodium parasites in the country. This report presents a preliminary evaluation on Anopheles species composition in seven districts of Botswana with some inferences on their vectorial role. RESULTS: Overall, 404 Anopheles mosquito females were collected, of which 196 were larvae collected from several breeding sites, and 208 were adults obtained from indoor pyrethrum spray catches (PSC)...
March 7, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28270152/a-systematic-review-on-malaria-sero-epidemiology-studies-in-the-brazilian-amazon-insights-into-immunological-markers-for-exposure-and-protection
#14
Pedro M Folegatti, André M Siqueira, Wuelton M Monteiro, Marcus Vinícius G Lacerda, Chris J Drakeley, Érika M Braga
BACKGROUND: Considerable success in reducing malaria incidence and mortality has been achieved in Brazil, leading to discussions over the possibility of moving towards elimination. However, more than reporting and counting clinical cases, elimination will require the use of efficient tools and strategies for measuring transmission dynamics and detecting the infectious reservoir as the primary indicators of interest for surveillance and evaluation. Because acquisition and maintenance of anti-malarial antibodies depend on parasite exposure, seroprevalence rates could be used as a reliable tool for assessing malaria endemicity and an adjunct measure for monitoring transmission in a rapid and cost-effective manner...
March 7, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28264857/the-malaria-taqman-array-card-87-assays-for-plasmodium-falciparum-drug-resistance-speciation-and-genotyping-in-a-single-reaction
#15
Suporn Pholwat, Jie Liu, Suzanne Stroup, Shevin Jacob, Patrick Banura, Christopher Moore, Fang Huang, Miriam Laufer, Eric Houpt, Jennifer Guler
Antimalarial drug resistance exacerbates the global disease burden and complicates eradication efforts. To facilitate the surveillance of resistance markers in malaria-endemic countries, we developed a suite of TaqMan assays for known resistance markers and compartmentalized them into a single array card (TAC). We included 87 assays for species identification, the detection of Plasmodium falciparum mutations associated with chloroquine, atovaquone, pyrimethamine, sulfadoxine, and artemisinin resistance, and neutral single nucleotide polymorphism (SNP) genotyping...
March 6, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28262811/a-new-malaria-vector-mosquito-in-south-africa
#16
Ashley Burke, Leonard Dandalo, Givemore Munhenga, Yael Dahan-Moss, Frans Mbokazi, Sifiso Ngxongo, Maureen Coetzee, Lizette Koekemoer, Basil Brooke
South Africa aims to eliminate malaria within its borders by 2018. Despite well-coordinated provincial vector control programmes that are based on indoor residual insecticide spraying, low-level residual malaria transmission continues in the low-altitude border regions of the north-eastern sector of the country. In order to identify the underlying causes of residual transmission, an enhanced vector surveillance system has been implemented at selected sites in the Mpumalanga and KwaZulu-Natal (KZN) provinces...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28253937/therapeutic-indications-and-other-use-case-driven-updates-in-the-drug-ontology-anti-malarials-anti-hypertensives-opioid-analgesics-and-a-large-term-request
#17
William R Hogan, Josh Hanna, Amanda Hicks, Samira Amirova, Baxter Bramblett, Matthew Diller, Rodel Enderez, Timothy Modzelewski, Mirela Vasconcelos, Chris Delcher
BACKGROUND: The Drug Ontology (DrOn) is an OWL2-based representation of drug products and their ingredients, mechanisms of action, strengths, and dose forms. We originally created DrOn for use cases in comparative effectiveness research, primarily to identify historically complete sets of United States National Drug Codes (NDCs) that represent packaged drug products, by the ingredient(s), mechanism(s) of action, and so on contained in those products. Although we had designed DrOn from the outset to carefully distinguish those entities that have a therapeutic indication from those entities that have a molecular mechanism of action, we had not previously represented in DrOn any particular therapeutic indication...
March 3, 2017: Journal of Biomedical Semantics
https://www.readbyqxmd.com/read/28253315/introducing-malaria-rapid-diagnostic-tests-in-private-medicine-retail-outlets-a-systematic-literature-review
#18
Theodoor Visser, Katia Bruxvoort, Kathleen Maloney, Toby Leslie, Lawrence M Barat, Richard Allan, Evelyn K Ansah, Jennifer Anyanti, Ian Boulton, Siân E Clarke, Jessica L Cohen, Justin M Cohen, Andrea Cutherell, Caitlin Dolkart, Katie Eves, Günther Fink, Catherine Goodman, Eleanor Hutchinson, Sham Lal, Anthony Mbonye, Obinna Onwujekwe, Nora Petty, Julie Pontarollo, Stephen Poyer, David Schellenberg, Elizabeth Streat, Abigail Ward, Virginia Wiseman, Christopher J M Whitty, Shunmay Yeung, Jane Cunningham, Clare I R Chandler
BACKGROUND: Many patients with malaria-like symptoms seek treatment in private medicine retail outlets (PMR) that distribute malaria medicines but do not traditionally provide diagnostic services, potentially leading to overtreatment with antimalarial drugs. To achieve universal access to prompt parasite-based diagnosis, many malaria-endemic countries are considering scaling up malaria rapid diagnostic tests (RDTs) in these outlets, an intervention that may require legislative changes and major investments in supporting programs and infrastructures...
2017: PloS One
https://www.readbyqxmd.com/read/28249583/molecular-surveillance-of-artemisinin-resistance-falciparum-malaria-among-migrant-goldmine-workers-in-myanmar
#19
Myat Htut Nyunt, Bo Wang, Khin Myo Aye, Kyin Hla Aye, Jin-Hee Han, Seong-Kyun Lee, Kay Thwe Han, Ye Htut, Eun-Taek Han
BACKGROUND: Artemisinin resistance has been reported in Greater Mekong Sub-region countries, including Myanmar. After discovery of artemisinin resistance marker (K13), molecular surveillance on artemisinin resistance in endemic regions have been conducted. As the migrant population represents a high percentage of malaria cases, molecular surveillance of artemisinin resistance among migrant workers is of great concern. METHODS: A cross-sectional survey was conducted in Shwegyin Township, where migrants work in the goldmines...
March 1, 2017: Malaria Journal
https://www.readbyqxmd.com/read/28243421/malaria-four-year-epidemiological-trends-in-sistan-and-baluchistan-province-iran
#20
Faezeh Norouzinezhad, Fatemeh Ghaffari, Ahmad Raeisi, Abbas Norouzinejad, Farzad Kaveh
INTRODUCTION: Malaria is one of the foremost public health concerns in Iran, where more than 90% of malaria cases are reported in the southern and south-eastern areas of the country. The aim of this study was to assess the epidemiological trends of malaria over a four-year period in in the Sistan and Baluchistan province in south east of Iran. METHODS: This descriptive epidemiological study examined malaria trends in Sistan and Baluchistan province from 2011 to 2014...
January 2017: Electronic Physician
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