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Soil transmitted helminth

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https://www.readbyqxmd.com/read/28535806/the-past-matters-estimating-intrinsic-hookworm-transmission-intensity-in-areas-with-past-mass-drug-administration-to-control-lymphatic-filariasis
#1
Marleen Werkman, James E Truscott, Jaspreet Toor, James E Wright, Roy M Anderson
BACKGROUND: Current WHO guidelines for soil-transmitted helminth (STH) control focus on mass drug administration (MDA) targeting preschool-aged (pre-SAC) and school-aged children (SAC), with the goal of eliminating STH as a public health problem amongst children. Recently, attention and funding has turned towards the question whether MDA alone can result in the interruption of transmission for STH. The lymphatic filariasis (LF) elimination programme, have been successful in reaching whole communities...
May 23, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28507618/correlation-between-soil-transmitted-helminth-infection-and-eosinophil-levels-among-primary-school-children-in-medan
#2
Dewi Masyithah Darlan, Zaimah Z Tala, Cellya Amanta, Syah Mirsya Warli, Nurfida K Arrasyid
BACKGROUND: Soil Transmitted Helminth infection is one of most prevalent health problems worldwide, especially in environments with poor sanitation. Based on World Health Organisation (WHO) data, more than 2 billion people, or 24% of the world's population, are infected with intestinal parasite. The highest prevalence is located in areas of poor sanitation and unsafe water supplies. In Indonesia, the prevalence of parasite infections is 15% of the entire population. AIM: The purpose of this study was to determine the relationship between Soil Transmitted Helminth infection on levels of eosinophils among primary school children...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28507613/correlation-between-soil-transmitted-helminths-infection-and-serum-iron-level-among-primary-school-children-in-medan
#3
Nurfida K Arrasyid, Monica Nadya Sinambela, Zaimah Z Tala, Dewi Masyithah Darlan, Syah Mirsya Warli
BACKGROUND: The latest estimates indicate that more than 2 billion people worldwide are infected by Soil-Transmitted Helminths (STH). The burden of STH infection is mainly attributed to the chronic effect on health and quality of life of those infected. It is also contributed to micronutrient deficiencies such as iron-deficiency anaemia. The prevalence of worm infection in Public Primary School students in Medan was quite high (40.3%), and 33.3% was anaemic in the latest study. AIM: To determine the correlation between STH infection with serum iron (SI) level on primary school children, as well as to determine the prevalence of SI level and worm infection, and the type of worm that infects the most of them...
April 15, 2017: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28490972/intensifying-responsiveness-towards-neglected-intestinal-helminth-infections-in-a-resource-constrained-setting
#4
Khin Thet Wai, Kay Thwe Han, Tin Oo
Neglected intestinal helminth infections afflict the marginalized communities in Asia. Since 2004, growing body of evidence in Myanmar indicated high prevalence of soil-transmitted helminths (STH) infections (30-40%) among school children. Co-existence of STH (23%) with food-borne trematodes was noted among 383 pregnant women in a selected township in 2012-2014 followed by molecular verification of very low prevalence of schistosome infection (<5%) in the same study site in 2016. The success of transmission elimination plans may depend upon sensitive diagnostic tools to detect persistent infections and polyparasitism...
2017: Tropical Medicine and Health
https://www.readbyqxmd.com/read/28489889/an-environmental-assessment-and-risk-map-of-ascaris-lumbricoides-and-necator-americanus-distributions-in-manufahi-district-timor-leste
#5
Rebecca Wardell, Archie C A Clements, Aparna Lal, David Summers, Stacey Llewellyn, Suzy J Campbell, James McCarthy, Darren J Gray, Susana V Nery
BACKGROUND: In Timor-Leste there have been intermittent and ineffective soil-transmitted helminth (STH) deworming programs since 2004. In a resource-constrained setting, having information on the geographic distribution of STH can aid in prioritising high risk communities for intervention. This study aimed to quantify the environmental risk factors for STH infection and to produce a risk map of STH in Manufahi district, Timor-Leste. METHODOLOGY/PRINCIPAL FINDINGS: Georeferenced cross-sectional data and stool samples were obtained from 2,194 participants in 606 households in 24 villages in the Manufahi District as part of cross sectional surveys done in the context of the "WASH for Worms" randomised controlled trial...
May 10, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28481890/associations-between-selective-attention-and-soil-transmitted-helminth-infections-socioeconomic-status-and-physical-fitness-in-disadvantaged-children-in-port-elizabeth-south-africa-an-observational-study
#6
Stefanie Gall, Ivan Müller, Cheryl Walter, Harald Seelig, Liana Steenkamp, Uwe Pühse, Rosa du Randt, Danielle Smith, Larissa Adams, Siphesihle Nqweniso, Peiling Yap, Sebastian Ludyga, Peter Steinmann, Jürg Utzinger, Markus Gerber
BACKGROUND: Socioeconomically deprived children are at increased risk of ill-health associated with sedentary behavior, malnutrition, and helminth infection. The resulting reduced physical fitness, growth retardation, and impaired cognitive abilities may impede children's capacity to pay attention. The present study examines how socioeconomic status (SES), parasitic worm infections, stunting, food insecurity, and physical fitness are associated with selective attention and academic achievement in school-aged children...
May 8, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28475238/antecedent-nippostrongylus-infection-alters-the-lung-immune-response-to-plasmodium-berghei
#7
J M Craig, A L Scott
In endemic regions, it is not uncommon for patients to be co-infected with soil-transmitted helminthes and malaria. Although both malaria and many helminth species use the lungs as a site of development, little attention has been paid to the impact that pulmonary immunity induced by one parasite has on the lung response to the other. To model the consequences of a prior hookworm exposure on the development of immunity to malaria in the lungs, mice were infected with Nippostrongylus brasiliensis and two weeks later challenged with Plasmodium berghei...
May 5, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28472383/effect-of-anthelmintic-treatment-on-insulin-resistance-a-cluster-randomized-placebo-controlled-trial-in-indonesia
#8
Dicky L Tahapary, Karin de Ruiter, Ivonne Martin, Eric A T Brienen, Lisette van Lieshout, Christa M Cobbaert, Pradana Soewondo, Yenny Djuardi, Aprilianto E Wiria, Jeanine J Houwing-Duistermaat, Erliyani Sartono, Johannes Wa Smit, Maria Yazdanbakhsh, Taniawati Supali
Background: Emerging evidence suggests that helminth infections are associated with lower insulin resistance (IR). Current deworming programmes might remove this helminth-associated protective effect. Therefore, we evaluated the anthelmintic treatment effect on changes in IR. Methods: We conducted a double-blind household-cluster-randomized placebo-controlled clinical trial on Flores island, Indonesia, an area endemic for soil-transmitted helminths (STH). All subjects received four rounds of three-monthly albendazole or matching placebo for three consecutive days...
May 3, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28449427/trichuris-trichiura-infection-in-north-korean-defector-resulted-in-chronic-abdominal-pain-and-growth-retardation
#9
Jong Bin Kim, Kwang Il Seo, Won Moon
Trichuris trichiura infection is a common helminth infection, which is transmitted via soil, with worldwide distribution, especially in rural areas of developing countries. Occasionally, sporadic cases occur in non-endemic, developed areas due to the widespread of immigration. We experienced a case of Trichuris dysentery syndrome in a young North Korean defector, who had been suffering from chronic abdominal pain for 10 years. He is relatively short and thin compared with his older brother. Unexpectedly, the diagnosis, made by a colonoscopy, revealed numerous, small, white, and gently moving worms at the cecum and ascending colon...
April 25, 2017: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28442321/high-prevalence-of-plasmodium-falciparum-and-soil-transmitted-helminth-co-infections-in-a-periurban-community-in-kwara-state-nigeria
#10
Olarewaju A Babamale, Uade S Ugbomoiko, Jorg Heukelbach
Prevalence of malaria and soil-transmitted helminth infections, and the burden of disease are enormous in sub-Saharan Africa. Co-infections aggravate the clinical outcome, but are common due to an overlap of endemic areas. A cross-sectional survey was conducted to assess prevalence, intensity of infection and association between malaria and soil-transmitted helminth infections in a typical periurban community in Kwara State. Fresh blood and faecal samples were examined using thick blood film and Kato-Katz smear techniques...
April 22, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28426784/building-on-the-success-of-soil-transmitted-helminth-control-the-future-of-deworming
#11
Peter Mark Jourdan, Antonio Montresor, Judd L Walson
No abstract text is available yet for this article.
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28426037/medicinal-plant-extracts-and-plant-derived-polyphenols-with-anthelmintic-activity-against-intestinal-nematodes
#12
REVIEW
V Spiegler, E Liebau, A Hensel
Covering: 2001 up to the end of 2016Polyphenols comprise a structurally diverse class of natural products. As the development of new anthelmintic drugs against soil-transmitted helminthiases is an urgent need and polyphenols are widely used in the treatment of nematode infections in traditional medicine and modern science, we summarize the state of knowledge in the period of mainly 2001 up to the end of 2016 on plant extracts with known polyphenolic composition and of defined polyphenols, mainly from the classes of condensed and hydrolysable tannins, flavonoids, and phenylpropanoids...
April 20, 2017: Natural Product Reports
https://www.readbyqxmd.com/read/28424091/investigations-into-the-association-between-soil-transmitted-helminth-infections-haemoglobin-and-child-development-indices-in-manufahi-district-timor-leste
#13
Suzy J Campbell, Susana V Nery, Catherine A D'Este, Darren J Gray, James S McCarthy, Rebecca J Traub, Ross M Andrews, Stacey Llewellyn, Andrew J Vallely, Gail M Williams, Archie C A Clements
BACKGROUND: Timor-Leste has a high prevalence of soil-transmitted helminth (STH) infections. High proportions of the population have been reported as being anaemic, and extremely high proportions of children as stunted or wasted. There have been no published analyses of the contributions of STH to these morbidity outcomes in Timor-Leste. METHODS: Using baseline cross-sectional data from 24 communities (18 communities enrolled in a cluster randomised controlled trial, and identically-collected data from six additional communities), analyses of the association between STH infections and community haemoglobin and child development indices were undertaken...
April 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28406909/sustained-effectiveness-of-weekly-iron-folic-acid-supplementation-and-regular-deworming-over-6-years-in-women-in-rural-vietnam
#14
Gerard J Casey, Ta T Tinh, Nong T Tien, Sarah Hanieh, Luca T Cavalli-Sforza, Antonio Montresor, Beverley-Ann Biggs
BACKGROUND: Weekly iron-folic acid (IFA) supplementation and regular deworming is effective for the prevention of iron deficiency and anaemia in women of child-bearing age. Between 2006 and 2013, a program of weekly IFA and biannual deworming was implemented in Yen Bai province, Vietnam. In this study we aimed to determine the effectiveness of the program in reducing anaemia and the prevalence of hookworm infection after 72 months (six years). METHODS: This prospective cohort study followed up a cohort of 389 women of child-bearing age from baseline until six years after the introduction of the weekly IFA (one tablet containing 200 mg ferrous sulphate, 0...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28384306/trichuris-trichiura-infection-and-its-relation-to-environmental-factors-in-mbeya-region-tanzania-a-cross-sectional-population-based-study
#15
Kirsi M Manz, Petra Clowes, Inge Kroidl, Dickens O Kowuor, Christof Geldmacher, Nyanda E Ntinginya, Leonard Maboko, Michael Hoelscher, Elmar Saathoff
BACKGROUND: The intestinal nematode Trichuris trichiura is among the most common causes of human infectious disease worldwide. As for other soil-transmitted nematodes, its reproductive success and thus prevalence and intensity of infection in a given area strongly depend on environmental conditions. Characterization of the influence of environmental factors can therefore aid to identify infection hot spots for targeted mass treatment. METHODOLOGY: We analyzed data from a cross-sectional survey including 6234 participants from nine distinct study sites in Mbeya region, Tanzania...
2017: PloS One
https://www.readbyqxmd.com/read/28381246/-fit-for-school-a-school-based-water-sanitation-and-hygiene-programme-to-improve-child-health-results-from-a-longitudinal-study-in-cambodia-indonesia-and-lao-pdr
#16
Denise Duijster, Bella Monse, Jed Dimaisip-Nabuab, Pantjawidi Djuharnoko, Roswitha Heinrich-Weltzien, Martin Hobdell, Katrin Kromeyer-Hauschild, Yung Kunthearith, Maria Carmela Mijares-Majini, Nicole Siegmund, Panith Soukhanouvong, Habib Benzian
BACKGROUND: The Fit for School (FIT) programme integrates school health and Water, Sanitation and Hygiene interventions, which are implemented by the Ministries of Education in four Southeast Asian countries. This paper describes the findings of a Health Outcome Study, which aimed to assess the two-year effect of the FIT programme on the parasitological, weight, and oral health status of children attending schools implementing the programme in Cambodia, Indonesia and Lao PDR. METHODS: The study was a non-randomized clustered controlled trial with a follow-up period of two years...
April 5, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28379956/detecting-and-enumerating-soil-transmitted-helminth-eggs-in-soil-new-method-development-and-results-from-field-testing-in-kenya-and-bangladesh
#17
Lauren Steinbaum, Laura H Kwong, Ayse Ercumen, Makeda S Negash, Amira J Lovely, Sammy M Njenga, Alexandria B Boehm, Amy J Pickering, Kara L Nelson
Globally, about 1.5 billion people are infected with at least one species of soil-transmitted helminth (STH). Soil is a critical environmental reservoir of STH, yet there is no standard method for detecting STH eggs in soil. We developed a field method for enumerating STH eggs in soil and tested the method in Bangladesh and Kenya. The US Environmental Protection Agency (EPA) method for enumerating Ascaris eggs in biosolids was modified through a series of recovery efficiency experiments; we seeded soil samples with a known number of Ascaris suum eggs and assessed the effect of protocol modifications on egg recovery...
April 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28378972/quantifying-the-risk-of-zoonotic-geohelminth-infections-for-rural-household-inhabitants-in-central-poland
#18
Jakub Gawor, Anna Borecka
The objective of this study was to evaluate the risk of soil transmitted zoonotic helminth infections for families with young children, inhabitants of villages in the Mazowieckie Province of Central Poland. Epidemiological survey was conducted at 33 randomly selected households with 2-3 children present. Examination of soil samples from yards surrounding the houses for the presence of geohelminth eggs was conducted, the households were inspected, and family members interviewed using a designed questionnaire...
March 31, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28377928/quantitative-pcr-and-digital-pcr-for-detection-of-ascaris-lumbricoides-eggs-in-reclaimed-water
#19
Lucrecia Acosta Soto, Ana Belén Santísima-Trinidad, Fernando Jorge Bornay-Llinares, Marcos Martín González, José Antonio Pascual Valero, Margarita Ros Muñoz
The reuse of reclaimed water from wastewater depuration is a widespread and necessary practice in many areas around the world and must be accompanied by adequate and continuous quality control. Ascaris lumbricoides is one of the soil-transmitted helminths (STH) with risk for humans due to its high infectivity and an important determinant of transmission is the inadequacy of water supplies and sanitation. The World Health Organization (WHO) recommends a limit equal to or lower than one parasitic helminth egg per liter, to reuse reclaimed water for unrestricted irrigation...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28377220/estimating-occurrence-of-strongyloides-stercoralis-in-the-caribbean-island-countries-implications-for-monitoring-and-control
#20
Jennifer K Ketzis, Anne Conan
BACKGROUND: Few data are available for the prevalence of Strongyloides stercoralis in the Caribbean region. This frequently under diagnosed soil-transmitted helminth (STH) can result in long-term low intensity chronic infections that are asymptomatic or can cause varied intestinal disturbances. With autoinfections, infections lasting over 60 years can occur and hyperinfections lead to high morbidity and mortality. METHODOLOGY/PRINCIPAL FINDINGS: Historical literature was searched to determine the prevalence of S...
April 1, 2017: Acta Tropica
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