Infections by the soil-transmitted helminths (STH), including Ascaris lumbricoides, Trichuris trichiura, Ancylostoma duodenale/Necator americanus (hookworms), and Strongyloides stercoralis, disproportionately affect children around the world. Because of their transmission associated with poor sanita...ry conditions and inadequate hygiene practices, higher burden of disease is seen in children from developing countries from sub-Saharan Africa, Southeast Asia, and Latin America. Approximately 267 million preschool-age children (PSAC) and 568 million school-age children (SAC) worldwide are at risk of STH infection as well as impaired child growth and cognitive development from A. lumbricoides, T. trichiura, and hookworm infections, and death due to severe S. stercoralis infection. Thus, their control is a global health priority.
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L’échinococcose humaine est une maladie parasitaire causée par des ténias du genre Echinococcus. Plus d’un million de personnes sont touchées par l’échinococcose.
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Human echinococcosis is a parasitic disease caused by tapeworms of the genus Echinococcus. More than one million people are affected by echinococcosis.
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La equinococosis humana es una enfermedad parasitaria causada por tenias del género Echinococcus. La equinococosis afecta a más de un millón de personas.
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Эхинококкоз человека - это паразитарное заболевание, вызываемое ленточными червями рода Echinococcus. Эхинококкозом болеют более миллиона человек....
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Human echinococcosis is a parasitic disease caused by tapeworms of the genus Echinococcus. More than one million people are affected by echinococcosis.
Background: Despite several cycles of Mass Drug Administration (MDA), however, the prevalence of Soil-transmitted helminthiasis (STH) remains high in Bangladesh. A clear understanding of local knowledge, attitudes, and practices (KAP) related to the acceptance and utilization of MDA is critical for ...effective implementation of this intervention.
Methods: This research, a cross-sectional descriptive study that utilized quantitative methods, was conducted between February and June 2017. A total of 380 questionnaire surveys were distributed to school-aged children (SAC), the parents of SAC, and school teachers.
Results: Out of 160 SACs, 81.9% knew of STH and 75.6% knew of MDA. SAC showed a high awareness of STH and recognized the importance of preventive measures and MDA. In terms of the parents of SAC and school teachers, close to half of the respondents were knowledgeable about STH and MDA. While nearly all of the participants held positive attitudes toward MDA, the respondents pointed out that school-based MDA presents severe limitations, as non-school-going children are neglected by this effort. A total of 68.3% of all school teachers and 56.8% of all parents of SAC found MDA efforts to be effective.
Conclusion: STH infections still remain a significant public health burden in Bangladesh. Reforming the MDA policy is necessary to achieve the target of STH elimination.
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Soil transmitted helminth (STH) infections are among the most common human infections worldwide with over 1 billion people affected. Many estimates of STH infection are often based on school-aged children (SAC). This study produced predictive risk-maps of STH on a more finite scale, estimated the nu...mber of people infected, and the amount of drug required for preventive chemotherapy (PC) in Ogun state, Nigeria. Georeferenced STH infection data obtained from a cross-sectional survey at 33 locations between July 2016 and November 2018, together with remotely-sensed environmental and socio-economic data were analyzed using Bayesian geostatistical modelling. Stepwise variable selection procedure was employed to select a parsimonious set of predictors to predict risk and spatial distribution of STH infections. The number of persons (pre-school ages children, SAC and adults) infected with STH were estimated, with the amount of tablets needed for preventive chemotherapy. An overall prevalence of 17.2% (95% CI 14.9, 19.5) was recorded for any STH infection. Ascaris lumbricoides infections was the most predominant, with an overall prevalence of 13.6% (95% CI 11.5, 15.7), while Hookworm and Trichuris trichiura had overall prevalence of 4.6% (95% CI 3.3, 5.9) and 1.7% (95% CI 0.9, 2.4), respectively. The model-based prevalence predictions ranged from 5.0 to 23.8% for Ascaris lumbricoides, from 2.0 to 14.5% for hookworms, and from 0.1 to 5.7% for Trichuris trichiura across the implementation units. The predictive maps revealed a spatial pattern of high risk in the central, western and on the border of Republic of Benin. The model identified soil pH, soil moisture and elevation as the main predictors of infection for A. lumbricoides, Hookworms and T. trichiura respectively. About 50% (10/20) of the implementation units require biannual rounds of mass drug administration. Approximately, a total of 1.1 million persons were infected and require 7.8 million doses. However, a sub-total of 375,374 SAC were estimated to be infected, requiring 2.7 million doses. Our predictive risk maps and estimated PC needs provide useful information for the elimination of STH, either for resource acquisition or identifying priority areas for delivery of interventions in Ogun State, Nigeria.
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Lymphatic filariasis, commonly known as elephantiasis, is a neglected tropical disease. Infection occurs when filarial parasites are transmitted to humans through mosquitoes. When a mosquito with infective stage larvae bites a person, the parasites are deposited on the person’s skin from where the...y enter the body. The larvae then migrate to the lymphatic vessels where they develop into adult worms in the human lymphatic system.
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La schistosomiase est une parasitose aiguë et chronique provoquée par des vers (trématodes) du genre Schistosoma. Au moins 249 millions de personnes ont eu besoin d’un traitement préventif en 2012. Le traitement préventif, qui doit être répété sur plusieurs années, permettra de réduire ...et de prévenir la morbidité.
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Aide-mémoire - Chikungunya
Aide-mémoire - Leishmaniose
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Food-borne trematode infections are zoonotic, and their pathogens can be transmitted to humans only after the completion of a complex life cycle, some stages of which take place in the body of an intermediate animal host. The first intermediate hosts of all tr...ematode species are freshwater snails. The second host varies depending on the species: in the case of clonorchiasis and opisthorchiasis it is freshwater fish, and in the case of paragonimiasis it is crustaceans.
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Les trématodes d'origine alimentaire sont des zoonoses et leurs agents pathogènes ne peuvent être transmis à l'homme qu'après avoir accompli un cycle de vie complexe, dont certaines étapes se déroulent dans un hôte animal intermédiaire. Les premiers h...ôtes intermédiaires de toutes les espèces de trématodes sont les escargots d'eau douce. Le deuxième hôte diffère selon l'espèce : dans le cas de la clonorchiase et de l'opisthorchiase, il s'agit de poissons d'eau douce, et dans le cas de la paragonimiase, de crustacés.
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Los trematodos transmitidos por los alimentos son zoonosis y sus patógenos sólo pueden transmitirse al ser humano tras completar un complejo ciclo vital, algunas de cuyas etapas tienen lugar en un hospedador animal intermediario. El primer hospedador interme...diario de todas las especies de trematodos son los caracoles de agua dulce. El segundo hospedador difiere según la especie: en el caso de la clonorquiasis y la opistorquiasis son los peces de agua dulce, y en el de la paragonimiasis, los crustáceos.
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Трематодозы пищевого происхождения являются зоонозами, и их возбудители могут передаваться человеку только после завершения сложного жизне...нного цикла, некоторые стадии которого протекают в организме промежуточного животного хозяина. Первыми промежуточными хозяевами всех видов трематод являются пресноводные улитки. Второй хозяин бывает разным в зависимости от вида: в случае клонорхоза и описторхоза это пресноводные рыбы, а в случае парагонимоза — ракообразные.
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Website last accessed on 14.04.2023
Food-borne trematode infections are zoonotic, and their pathogens can be transmitted to humans only after the completion of a complex life cycle, some stages of which take place in the body of an intermediate animal host. The first intermediate hosts of all tr...ematode species are freshwater snails. The second host varies depending on the species: in the case of clonorchiasis and opisthorchiasis it is freshwater fish, and in the case of paragonimiasis it is crustaceans.
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Les géohelminthiases comptent parmi les infections les plus courantes dans le monde, plus de 1,5 milliard de personnes, soit près de 24 % de la population mondiale, étant infestées à l’échelle mondiale. Ces infections touchent les communautés les plus pauvres et les plus défavorisées ayan...t un accès limité à l’eau potable, à l’assainissement et à l’hygiène dans les régions tropicales et subtropicales, la plus forte prévalence étant recensée en Afrique subsaharienne, en Chine, en Amérique du Sud et en Asie. Elles se transmettent par des œufs présents dans les excréments humains, qui contaminent les sols là où les conditions d’assainissement sont insuffisantes. Plus de 260 millions d’enfants d’âge préscolaire, 654 millions d’enfants d’âge scolaire, 108 millions d’adolescentes et 138,8 millions de femmes enceintes ou allaitantes vivent dans des zones où il existe une transmission à grande échelle de ces parasites et nécessitent un traitement et la mise en place de mesures préventives.
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Передающиеся через почву гельминтозы (ППГ) относятся к наиболее распространенным инвазиям во всем мире и, согласно расчетам, поражают 1,5 млрд человек, или 24% мирово...о населения. Они поражают беднейшие и наиболее обездоленные группы населения, не имеющие полноценного доступа к чистому водоснабжению и санитарно-гигиеническим средствам, на территории тропических и субтропических районов и, по имеющимся данным, наиболее распространены в странах Африки к югу от Сахары, Китае, Южной Америке и Азии. Они передаются через яйца, присутствующие в фекалиях человека, которые в неблагополучных с санитарной точки зрения районах попадают в почву. В районах интенсивной передачи данных паразитов проживает более 260 млн детей дошкольного возраста, 654 млн детей школьного возраста, 108 млн девочек-подростков и 138,8 млн беременных и кормящих грудью женщин, все из которых нуждаются в лечении и профилактике.
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عد عدوى الديدان الطفيلية المنقولة بالتربة من بين أكثر أنواع العدوى شيوعاً في العالم، مع وجود ما يقدّر بـ1,5 مليار شخص مصاب بها في جميع أنحاء العالم، أو ما يعادل 24٪ من ...كان العالم. وتؤثر هذه الإصابات على أفقر المجتمعات وأكثرها حرماناً، حيث تعاني هذه المجتمعات من ضعف فرص الحصول على المياه النظيفة والصرف الصحي والنظافة الصحية في المناطق المدارية وشبه المدارية، مع الإبلاغ عن أعلى معدل انتشار لها في أفريقيا جنوب الصحراء الكبرى والصين وأمريكا الجنوبية وآسيا. وتنتقل العدوى عن طريق البيوض الموجودة في البراز البشري الذي يلوث التربة في المناطق التي تعاني من رداءة مرافق الصرف الصحي. ويعيش أكثر من 260 مليون طفل في سن ما قبل المدرسة، و654 مليون طفل في سن المدرسة، و108 ملايين مراهق، و138,8 مليون حامل ومرضع في مناطق تنتقل فيها هذه الطفيليات بشكل مكثف، ويحتاجون إلى العلاج والتدخلات الوقائية.
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