Sleeping sickness is controlled by case detection and treatment but this often only reaches less than 75% of the population. Vector control is capable of completely interrupting HAT transmission but is not used because of expense. We conducted a full scale field trial of a refined vector control tec
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hnology. From preliminary trials we determined the number of insecticidal tiny targets required to control tsetse populations by more than 90%. We then carried out a full scale, 500 km2 field trial covering two HAT foci in Northern Uganda (overall target density 5.7/km2). In 12 months tsetse populations declined by more than 90%. A mathematical model suggested that a 72% reduction in tsetse population is required to stop transmission in those settings. The Ugandan census suggests population density in the HAT foci is approximately 500 per km2. The estimated cost for a single round of active case detection (excluding treatment), covering 80% of the population, is US$433,333 (WHO figures). One year of vector control organised within country, which can completely stop HAT transmission, would cost US$42,700. The case for adding this new method of vector control to case detection and treatment is strong. We outline how such a component could be organised.
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The epidemiology of the disease is mediated by the interaction of the parasite (trypanosome) with the vectors (tsetse flies), as well as with the human and animal hosts within a particular environment. Related to these interactions, the disease is confined in spatially limited areas called “foci
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, which are located
in Sub-Saharan Africa, mainly in remote rural areas. The risk of contracting HAT is, therefore, determined by the possibility of contact of a human being with an infected tsetse fly. Epidemics of HAT were described at the beginning of the 20th century; intensive activities have been set up to confront the disease, and it was under control in the 1960s, with fewer than 5,000 cases reported in the whole continent.
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Gambiense human African trypanosomiasis is a deadly infectious disease affecting West and Central Africa, South Sudan and Uganda, and transmitted between humans by tsetse flies. The disease has caused several major epidemics, the latest one in the 1990s. Thanks to recent innovations such as rapid di
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agnostic tests for population screening, a single-dose oral treatment and a highly efficient vector control strategy, interruption of transmission of the causative parasite is now within reach. If indeed gHAT has an exclusively human reservoir, this could even result in eradication of the disease. Even if there were an animal reservoir, on the basis of epidemiological data, it plays a limited role. Maintaining adequate postelimination surveillance in known historic foci, using the newly developed tools, should be sufficient to prevent any future resurgence.
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Rev Panam Salud Publica. 2018;42:e45. https://doi.org/10.26633/RPSP.2018.45
The main purpose of the meeting was to review tsetse control tools, activities and their contribution to the elimination of gHAT and the monitoring thereof. Seven endemic countries provided reports on recent and ongoing vector control interventions at the national level (Angola, Cameroon, Côte d’
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Ivoire, Chad, Democratic Republic of the Congo, Guinea and Uganda). Country reports focused on the in situations implementing and supporting vector control activities, the tools and the approaches in use, the coverage of the activities in space and time and their impacts on tsetse populations. Future perspectives for vector control in the respective countries were also discussed, including opportunities and challenges to sustainability.
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Trabajando con grupos de madres y padres – un recurso de capacitación para facilitadores, madres y padres, cuidadores, y personas con parálisis cerebral
Carta Enciclica Fratelli Tutti sobre la fraternidad y la amistad social
En el año 2007, los países de la Región de las Américas aprobaron la Agenda de Salud para las Américas 2008-2017 en la que se consideraba a la salud mental como una de las prioridades. En 2014, en el Plan de acción sobre salud mental (2015-2020), aprobado por la Organización Panamericana de l
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a Salud (OPS), se identificaron temas intersectoriales como la etnicidad, la equidad y los derechos humanos, de conformidad con el Plan de acción integral sobre salud mental (2013- 2020) aprobado oportunamente por la Organización Mundial de la Salud (OMS).
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A resposta a um surto de cólera focaliza geralmente os aspectos médicos que são importantes para reduzir a mortalidade. Contudo, há necessidade de uma resposta mais abrangente para limitar a propagação da doença. Como a resposta a surtos é geralmente dirigida por profi ssionais médicos, pod
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haver tendência para negligenciar outros aspectos, tais como problemas ambientais ou de comunicação.
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