Vue d’ensemble:
Le cycle de transmission
Téniase. Les ténias vivent dans l’intestin des êtres humains. Les œufs du ténia sont libérés avec les matières fécales. En cas de défécation à l’air libre, l'environnement (en particulier les légumes et l'eau) peut être contaminé. Cysti...cercose humaine. L'ingestion d'œufs de ténia (due à une mauvaise hygiène après l'utilisation des toilettes ou à la consommation d'eau ou d'aliments contaminés), entraîne le développement de kystes parasitaires principalement dans le cerveau (provoquant notamment des crises d’épilepsie). Cysticercose porcine. Les porcs mangeant des œufs de ténia (présents dans les matières fécales ou l'environnement) développent des kystes parasitaires principalement dans les muscles (viande). La viande infectée contient des kystes parasitaires qui ne sont pas toujours faciles à voir. La consommation de viande de porc infectée, crue ou mal cuite, entraîne le développement du ténia.
Les mesures de prévention et de contrôle
Les médicaments prescrits dans les centres de santé peuvent traiter l'infection par le ténia. Lavez vos mains avec de l'eau et du savon après avoir utilisé les toilettes. Rincez soigneusement les légumes ou faites-les cuire avant de les manger. Utilisez les toilettes ou les latrines pour éviter la contamination de l'environnement, des porcs et des autres personnes. Garder les porcs dans des enclos pour les empêcher d’être infectés. Vaccinez et traitez les porcs pour prévenir l'infection. L'inspection des viandes permet d'identifier les porcs fortement infectés. Faites bien cuire la viande de porc (elle ne doit plus être rose) pour tuer le parasite.
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Visión de conjunto:
El ciclo de transmisión
Teniasis. Las tenias viven en los intestinos de las personas infectadas. Los huevos de la tenia se liberan con las heces. Si se defeca al aire libre, se puede contaminar el ambiente (incluyendo los vegetales y el agua). Cisticercosis humana. La inges...tión de huevos de la tenia (debido a una mala higiene después de ir al baño o al consumir alimentos o agua contaminados), resulta en quistes del parásito principalmente en el cerebro (causando convulsiones y epilepsia). Cisticercosis porcina. Los cerdos que ingieren huevos de tenia (presentes en las heces o en el medio ambiente) desarrollan quistes del parásito, principalmente en los músculos (carne). La carne infectada contiene quistes del parásito, que no siempre son fáciles de ver. Comer carne de cerdo infectada cruda o poco cocinada hará que las personas desarrollen tenias.
Las medidas de prevención y control
Tratar la infección por teniasis con medicamentos indicados por el personal de salud. Lavarse las manos con agua y jabón después de ir al baño. Lavar bien las verduras o cocinarlas antes de comerlas. Utilizar los baños o letrinas para evitar infectar el ambiente, los cerdos y otras personas. Mantener a los cerdos en corrales para evitar que se infecten. Vacunar y tratar a los cerdos para prevenir la infección. La inspección de la carne puede identificar a los cerdos altamente infectados. Cocinar bien la carne de cerdo (no debe verse el color rosa) para matar el parásito.
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Cutaneous leishmaniasis is a painful disease that exerts a serious toll on societies around the world that are afflicted by it. Although not life-threatening, the skin ulcers and scars it causes can lead to isolation and psychosocial pathologies due to social stigma, and its occurrence is often asso...ciated with regional conflicts.
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Info Chagas
What do we need to know abaout Chagas Disease? What is Chagas Disease?
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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Soil-transmitted helminth (STH) infections are among the most common infections worldwide with an estimated 1.5 billion infected people or 24% of the world’s population. These infections affect the poorest and most deprived communities with poor access to clean water, sanitation and hygiene in tro...pical and subtropical areas, with the highest prevalence reported from sub-Saharan Africa, China, South America and Asia. They are transmitted by eggs present in human faeces, which in turn contaminate soil in areas where sanitation is poor. Over 260 million preschool-age children, 654 million school-age children,108 million adolescent girls and 138.8 million pregnant and lactating women live in areas where these parasites are intensively transmitted, and are in need of treatment and preventive interventions.
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Chromoblastomycosis (CBM), represents one of the primary implantation mycoses caused by melanized fungi widely found in nature. It is characterized as a Neglected Tropical Disease (NTD) and mainly affects populations living in poverty with significant morbidity, including stigma and discrimination.
The BeatChagas platform is a tool developed by the Technical Group of Information, Education, and Communication (IEC) for Chagas Disease (TG6-IEC Chagas), part of the Chagas Disease Control Program by the World Health Organization (WHO). The purpose of this platform is to share information about the... TG6-IEC group’s activities.
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Schistosomiasis is a helminthic infection and one of the neglected tropical diseases (NTDs). It is caused by blood flukes of the genus Schistosoma. It is an important public health problem, particularly in poverty-stricken areas, especially those within the tropics and subtropics. It is estimated th...at at least 236 million people worldwide are infected, 90% of them in sub-Saharan Africa, and that this disease causes approximately 300,000 deaths annually. The clinical manifestations are varied and affect practically all organs. There are substantial differences in the clinical presentation, depending on the phase and clinical form of schistosomiasis in which it occurs. Schistosomiasis can remain undiagnosed for a long period of time, with secondary clinical lesion. Here, we review the clinical profile of schistosomiasis. This information may aid in the development of more efficacious treatments and improved disease prognosis.
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Accessed on 28.02.2023
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Biology, Diagnosis and Treatment, Epidemiology and Prevention
Diagnostic performance, cost-effectiveness, ease of performance, rapidity and in-field applicability of tests for Soil-transmitted helminth infections.
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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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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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.
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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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.
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.
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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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