In response to the recent publication “Is onchocerciasis elimination in Africa feasible by 2025: a perspective based on lessons learnt from the African control programmes” by Dadzie et al., it is important to clarify and highlight the positive and unequivocal research and operational contributio...ns from the American experience towards the worldwide elimination of human onchocerciasis (river blindness).
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WHO promotes the inclusion of foodborne trematodiases among the targets of preventive chemotherapy interventions. With the aim of providing access to quality medicines, WHO has negotiated with Novartis Pharma AG whereby Novartis donates triclabendazole for the treatment of fascioliasis and paragonim...iasis in endemic countries. WHO collects applications from ministries of health and medicines are shipped free of charge.
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Foodborne trematodiases are caused by parasitic trematode worms. People become infected by eating raw or undercooked fish, crustaceans and vegetables that contain the larval worms.
Human scabies is caused by an infestation of the skin by the human itch mite (Sarcoptes scabiei var. hominis). The microscopic scabies mite burrows into the upper layer of the skin where it lives and lays its eggs.
Scabies is found worldwide and affects people of all races and social classes. Scabi...es can spread rapidly under crowded conditions where close body and skin contact is frequent. Institutions such as nursing homes, extended-care facilities and prisons are often sites of scabies outbreaks. Child care facilities also are a common site of scabies infestations.
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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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Taenia saginata is a zoonotic tapeworm that is of economic importance in countries where cattle are kept. The parasite is transmitted from human tapeworm carriers (taeniosis) to bovines (cysticercosis) by excretion of eggs or proglottids containing eggs into the environment via the stool. Bovines ca...n then ingest the eggs through contaminated feed or water. After ingestion, the eggs hatch and release oncospheres in the small intestines, where the oncospheres penetrate the intestinal wall to reach the blood circulation. This distributes them throughout the body, but primarily to muscle tissue, where they develop into cysticerci. For humans to become infected with T. saginata, raw or undercooked bovine meat or offal containing infective cysts must be consumed. Bovine cysticercosis has been associated with various environmental factors related to water sources, such as animals having access to surface water, flooding of pastures and proximity to wastewater sources.
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Rabies is entirely preventable, and vaccines, medicines, tools and technologies have long been available to prevent people from dying of dog-mediated rabies. Nevertheless, rabies still kills about 60 000 people a year, of whom over 40% are children under 15, mainly in rural areas of economically dis...advantaged countries in Africa and Asia. Of all human cases, up to 99% are acquired from the bite of an infected dog.
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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.
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 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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Worm infestation is a common issue that is seen mostly among children. However, this issue can be found among adults as well due to the change in lifestyle patterns. In most cases, worm infestation is not a life-threatening infection but it can lead to various clinical problems.
[Antecedentes] En el año 2005, un brote registrado en un área turística del sur de Brasil, concitó la atención internacional en función de haber afectado a un grupo de turistas internacionales y haber registrado alta morbilidad y mortalidad. La importancia que reviste este tema emergente, y la...s recomendaciones relacionadas al estudio del tema emanadas de la 1ª. y 2ª. Reunión de la Iniciativa de Prevención y Vigilancia de la Enfermedad de Chagas en la Amazonia AMCHA (Manaos, 2004 y Cayenne, 2005), estimulan a desarrollar entre técnicos e investigadores dedicados a enfermedad de Chagas e inocuidad de alimentos, la presente consulta técnica para
trazar un posicionamiento sobre la naturaleza y prevención/control de esta variable de transmisión de Chagas de alta morbilidad y mortalidad.
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Un suivi et une évaluation efficaces sont nécessaires pour atteindre l’objectif d’élimination de la filariose lymphatique (FL). Après le traitement médicamenteux de masse (TMM) conformément aux lignes directrices élaborées par l’OMS, des programmes doivent être mis en œuvre afin de d...éterminer si les interventions ont permis de réduire la prévalence de l’infestation à un niveau en deçà duquel sa transmission ne pourra vraisemblablement pas perdurer. L’enquête d’évaluation
de la transmission (TAS) a été conçue de manière à offrir une structure simple et robuste afin de déterminer si la prévalence de la filariose lymphatique chez des enfants de 6–7 ans est inférieure à un seuil préalablement déterminé. Le TAS fournit aux administrateurs de programmes les informations factuelles nécessaires pour décider de l’opportunité d’arrêter le TMM. Le TAS garantit aux pouvoirs publics que les programmes nationaux ont atteint leur objectif d’élimination de la FL.
Ce guide a été conçu pour enseigner aux membres du personnel des programmes nationaux d’élimination de la FL, notamment le personnel de santé aux niveaux régional et de district, les éléments essentiels des programmes nationaux de suivi et d’évaluation pour l’élimination de la FL. Le guide est axé sur la planification et la mise en œuvre du TAS afin de pouvoir décider de l’opportunité
d’interrompre le TMM et de commencer la surveillance post-TMM.
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A través de la investigación, la formación y la creación de sinergias con otros centros y organizaciones, buscamos dotar de mayor visibilidad y recursos la lucha contra esta enfermedad desatendida.
[Presentación] El presente libro, elaborado por integrantes de múltiples generaciones
de técnicos e investigadores salvadoreños dedicados a la enfermedad de Chagas, refleja claramente su actual situación epidemiológica, la evolución
histórica de la misma y los retos y perspectivas que la... prevención, control
y atención médica de la enfermedad de Chagas presentan al país.
También se destaca el aporte de la Agencia de Cooperación Internacional del Japón (JICA), que junto con OPS en Centroamérica y CIDA Canadá en Honduras, han ocupado un capítulo fundamental en el desarrollo de la vigilancia y control de la Enfermedad de
Chagas.
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Website last accessed on 04.06.2023
Treatment options for Visceral Leishmaniasis in HIV-coinfected people include oral miltefosine; find additional information on diagnosis and ART treatment.
Website last accessed on 23.06.2023
El micetoma es una enfermedad inflamatoria crónica y progresivamente destructiva que afecta a la piel, el tejido subcutáneo, el músculo y el hueso.
Effective monitoring, epidemiological assessment and evaluation are necessary to achieve the aim of interrupting LF transmission. This manual is designed to ensure that national elimination programmes have available the best information on methodologies and procedures for monitoring MDA, appropriate...ly assessing when infection has been reduced to levels where transmission is likely no longer sustainable, implementing adequate surveillance after MDA has ceased to determine whether recrudescence has occurred, and preparing for verification of the absence of transmission. The manual provides general guidance to national programmes; relevant background information on technical issues is contained in the annexes. As real-life situations may not correspond to predefined categories, consultation with WHO and experts is recommended in complicated situations.
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Buruli ulcer (BU) is a bacterial skin infection that is caused by Mycobacterium ulcerans and mainly affects people who reside in the rural areas of Africa and in suburban and beach resort communities in Australia.
La fascioliasis es una enfermedad parasitaria que afecta a las personas y a una gran variedad de animales, esencialmente herbívoros. En América Latina y el Caribe está causada por el trematodo Fasciola hepatica. La fascioliasis está clasificada por la Organización Mundial de la Salud (OMS) dent...ro de las enfermedades tropicales desatendidas. La Organización Panamericana de la Salud, como parte del compromiso para lograr las metas de la Agenda 2030 para el Desarrollo Sostenible y la Agenda de Salud Sostenible para las Américas 2018-2030, lanzó una iniciativa de eliminación de las enfermedades transmisibles en la Región de las Américas, que incluye entre sus objetivos eliminar la fascioliasis como un problema de salud pública en la Región de las Américas para el año 2030.
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