Environmental Health in Emergencies and Disasters
Chapter 10
The proposed roadmap includes components and recommended actions to eliminate these neglected infectious diseases from the Americas.
Diagnostic performance, cost-effectiveness, ease of performance, rapidity and in-field applicability of tests for Soil-transmitted helminth infections.
Scabies is a contagious skin condition caused by the mite Sarcoptes scabiei which burrows into the skin and causes severe itching. Scabies is transmitted by direct skin-to-skin contact or indirectly by contact with contaminated material (fomites). This condition is often challenging to diagnose as m...any patients may have only subtle symptoms. However, other patients may present with the classic history of exposure, severe pruritis that is worse at night, and reference to other individuals with similar symptoms. This activity reviews the evaluation and treatment of scabies and highlights the role of the interprofessional team in managing patients with this condition.
more
Scabies is an itchy skin condition caused by a tiny burrowing mite. This eight-legged bug is so small which makes it hard to see on the skin. Approximately 300 million cases of scabies are reported worldwide each year.
Website last accessed on 09.04.2023
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.
Website last accessed on 09.04.2023
La equinococosis humana es una enfermedad parasitaria causada por tenias del género Echinococcus. La equinococosis afecta a más de un millón de personas.
Website last accessed on 09.04.2023
Эхинококкоз человека - это паразитарное заболевание, вызываемое ленточными червями рода Echinococcus. Эхинококкозом болеют более миллиона человек....
more
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.
more
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.
more
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.
more
Website last accessed on 14.04.2023
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.
more
Website last accessed ob 14.04.2023
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.
more
Website last accessed on 14.04.2023
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.
more
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.
more
Despite pandemic-related disruptions, a total of 76.9 million people received treatment for schistosomiasis in 2020, representing a global coverage of 31.9%, compared with 105 million treated in 2019 (coverage of 44.8%).
The latest data published by the World Health Organization (WHO) show that 2...8.6 million fewer people were treated for schistosomiasis (bilharzia) in 2020 than in 2019. This 27% drop in the number of treatments delivered is largely due to the implementation of COVID-19 measures, including school closures.
more
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.
more
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.
more
Website last accessed in 23.04.2023