Este libro, editado por el Programa de Promoción de Vocaciones Científicas (VocAr) perteneciente a la Dirección de Relaciones Institucionales del CONICET, es producto del trabajo colectivo de personas que formamos del grupo ¿De qué hablamos cuando hablamos de Chagas? (CONICET-UNLP-CIIE). Cada u...na de sus páginas da cuenta del trabajo interdisciplinario que se viene llevando a cabo desde el grupo, a partir del cual se busca desarrollar un abordaje que refleje la complejidad de la problemática del Chagas. Se apuesta a construir y fomentar diversas formas de mirar y entender el tema -desde múltiples disciplinas, lenguajes y escenarios- porque consideramos que no hay un solo grupo de personas autorizadas para hablar de Chagas, ni una sola manera de hacerlo. El objetivo principal es promover el abordaje de la problemática del Chagas desde una perspectiva integral e innovadora en diferentes contextos educativos.
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This motion graphic shows how the kissing bug transmits the Trypanosoma cruzi parasite to humans and causes Chagas disease.
Human schistosomiasis otherwise called bilharzia, is a fresh- water snail transmitted intravascular debilitating disease resulting from infection by the parasitic dimorphic Schistosoma trematode worms, which lives in the bloodstream of humans. The World Health Organization (WHO) regards the disease ...as a neglected tropical disease, with an estimated 732 million persons being vulnerable to infection worldwide in renowned transmission areas. Steinmann and co-workers documented that over 200 million individuals from Africa, Asia, and South America are infected with this disease. The WHO further estimated that schistosome infections and geohelminths accounts for over 40% of the world tropical disease burden with the exclusion of malaria. Humans get infected with this disease when they make contact with water contaminated with the skin-penetrating cercariae. Prevalence of schistosomiasis, at present, is still high in sub-Saharan Africa. In 2008, 17.5 million people were treated globally for schistosomiasis, 11.7 million of those from sub-Saharan Africa only. Approximately 120 million individuals in sub-Saharan Africa have schistosomiasis-related symptoms while about 20 million undergo hardship as a result of chronic presentations of the disease.
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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...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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Yaws, an infectious disease caused by Treponema pallidum subspecies pertenue, is endemic in many parts of the world. A community-wide treatment program in Papua New Guinea, in which a single dose of azithromycin was administered, showed substantial disease control. Watch the new Quick Take animation.... Click through to read the study.
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Leptospirosis, a spirochaetal zoonosis, occurs in diverse epidemiological settings and affects vulnerable populations, such as rural subsistence farmers and urban slum dwellers. Although leptospirosis is a life-threatening disease and recognized as an important cause of pulmonary haemorrhage syndrom...e, the lack of global estimates for morbidity and mortality has contributed to its neglected disease status
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Mycetoma is a specific chronic, granulomatous, inflammatory disease. It usually involves the subcutaneous tissue, most probably after traumatic inoculation of the causative organism. It has a prolonged, progressive, and indolent course, and, if untreated, it ultimately leads to destruction of the de...eper tissues and bone, resulting in deformity and disability that may necessitate amputation of the affected parts with all the social and economic implications of this. The disease is characterized by tumefaction, draining sinuses, and the presence of grains.
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Chromoblastomycosis (CMB) is a chronic fungal infection of the skin and the subcutaneous tissue caused by a transcutaneous traumatic inoculation of a specific group of dematiaceous fungi occurring mainly in tropical and subtropical zones worldwide. If not diagnosed at early stages, patients with CBM... require long term therapy with systemic antifungals, sometimes associated with physical methods. Unlike other neglected endemic mycoses, comparative clinical trials have not been performed for this disease. Nowadays, therapy is based on a few open trials and on expert opinion. Itraconazole either as monotherapy or associated with other drugs, or with physical methods, is widely used. Recently, photodynamic therapy has been successfully employed in combination with antifungals in patients presenting with CBM. In the present revision the most used therapeutic options against CBM are reviewed as well as the several factors that may have impact on the patient's outcome.
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The major neglected tropical diseases, Taenia solium taeniosis/cysticercosis and schistosomiasis caused by Schistosoma mansoni or S. haematobium are presumed to be widely distributed in Africa. Taenia solium taeniosis/ cysticercosis has been reported as an emerging disease in different regions of Af...rica [1, 2], but currently the exact distribution remains unclear. Reported prevalences of T. solium taeniosis and cysticercosis in African countries are not extensive and are further complicated by the lack of ‘gold standard’ tests for diagnosis.
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Antimicrobial resistance (AMR) represents a major threat to human health with significant global economic and security implications. In 2015, WHO Member States unanimously approved a Global Action Plan to tackle AMR (GAP-AMR). The goal of GAP-AMR is “to ensure, for as long as possible, continuity ...of successful treatment and prevention of infectious diseases with effective and safe medicines that are quality-assured, used in a responsible way, and accessible to all who need them”.
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The Alere Filariaisis Test Strip (FTS) is a diagnostic test used to detect filarial antigens for lymphatic filariasis. This training video was developed by ENVISION in collaboration with the US Centers for Disease Control and Prevention, with funding provided by the US Agency for International Deve...lopment.
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La deuxième édition de ce manuel combine et met à jour les éléments contenus dans les trois manuels
antérieurs consacrés à la rotation bilamellaire du tarse, à la méthode de Trabut et à l’évaluation fi nale des
chirurgiens du trichiasis.
Ce manuel est destiné à fournir des informa...tions spécifi ques aux formateurs dans le domaine du trichiasis
trachomateux (TT) à d’autres personnes pour qu’elles puissent pratiquer la chirurgie de l’entropion trichiasis.
Il ne traite pas des autres approches et se divise en deux parties. La première présente les spécifi cités de la
formation des futurs chirurgiens du trichiasis et sert de document de référence. Le formateur peut préférer
que les stagiaires lisent directement le document, utilisent ce manuel comme guide dans le cadre d’une
présentation didactique ou l’exploitent d’autres manières comme aide à la formation. Le manuel contient
des connaissances devant être transmises lors de la formation et une description des compétences devant
être acquises et évaluées pendant la pratique et les sessions de chirurgie. La seconde partie est destinée
UNIQUEMENT aux formateurs des futurs chirurgiens et porte sur la sélection et l’évaluation fi nale des
participants.
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Chikungunya virus (CHIKV) is a re-emerging mosquito borne alphavirus responsible
for the recent outbreak in the Americas. Immunologically naïve population in the Americas favors the spread of epidemics. Chikungunya fever is characterized by an abrupt febrile illness, polyarthralgia and maculopapul...ar rash. In chikungunya fever, shock or severe hemorrhage is very rarely observed; the onset is more acute and the duration of fever is shorter than dengue disease. The pain is much more pronounced and localized to the joints and tendons in chikungunya fever, in comparison to dengue fever. There is no specific and effective antiviral therapy and vaccines are still in trails. The only effective preventive measures consist of individual protection against mosquito bites and vector control. Disease prevention is important due to the
economic burden it entails. Clinicians need to distinguish chikungunya fever between dengue fever and other diseases to give a successful treatment and prevent disease spreading.
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Presentation on WASH in Malawi
Chagas disease or American trypanosomiasis is, together with geohelminths, the neglected disease that causes more loss of years of healthy life due to disability in Latin America. Chagas disease, as determined by the factors and determinants, shows that different contexts require different actions, ...preventing new cases or reducing the burden of disease. Control strategies must combine two general courses of action including prevention of transmission to prevent the occurrence of new cases (these measures are cost effective), as well as opportune diagnosis and treatment of infected individuals in order to prevent the clinical evolution of the disease and to allow them to recuperate their health. All actions should be implemented as fully as possible and with an integrated way, to maximise the impact. Chagas disease cannot be eradicated due because of the demonstrated existence of infected wild triatomines
in permanent contact with domestic cycles and it contributes to the occurrence of at least few new cases. However, it is possible to interrupt the transmission of Trypanosoma cruzi in a large territory and to eliminate Chagas disease
as a public health problem with a dramatic reduction of burden of the disease.
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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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Diagnosis, Case Management Prevention and Control of Leptospirosis
Monitoramento efetivo, avaliação epidemiológica e análise subsequente são
necessários para atingir o objetivo de interromper a transmissão da FL. Este manual foi
elaborado para oferecer aos programas nacionais de eliminação da fi lariose informação de qualidade sobre metodologias e proc...edimentos para monitoramento dos TC, avaliação adequada sobre se e quando ocorreu redução da infecção a níveis em que a transmissão provavelmente não é mais sustentável, implementação de vigilância adequada após a interrupção dos TCs para estabelecer se está ocorrendo recrudescência e medidas para comprovação da ausência de transmissão. O Manual oferece orientação geral aos programas nacionais e informações relevantes sobre questões técnicas são apresentadas nos anexos. Como as circunstâncias da vida real podem não corresponder a categorias pré-defi nidas, recomenda-se que se consultem a OMS e especialistas em situações complexas.
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The final text of the outcome document adopted at the Third Internatinal Conference on Financing for Development (Addis Ababa, Ethiopia, 13–16 July 2015) and endorsed by the General Assembly in its resolution 69/313 of 27 July 2015.
Zero draft of the outcome document adopted at the Third Internatinal Conference on Financing for Development (Addis Ababa, Ethiopia, 13–16 July 2015) and endorsed by the General Assembly in its resolution 69/313 of 27 July 2015.