Pathogens . 2021 Nov 16;10(11):1493.doi: 10.3390/pathogens10111493
.Chronic manifestations of Chagas disease present as disabling and life-threatening condi-tions affecting mainly the cardiovascular and gastrointestinal systems. Although meaningful research has outlined the different molecular mech...anisms underlying Trypanosoma cruzi’s infection and the host-parasite interactions that follow, prompt diagnosis and treatment remain a challenge, particu-larly in developing countries and also in those where the disease is considered non-endemic. This review intends to present an up-to-date review of the parasite’s life cycle, genetic diversity, virulence factors, and infective mechanisms, as well as the epidemiology, clinical presentation, diagnosis, and treatment options of the main chronic complications of Chagas disease.
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This document focuses on making recommendations for the diagnosis and treatment of Chagas disease, an infection caused by Trypanosoma cruzi, the protozoan agent of a systemic parasitic disease. Methodology: These clinical practice guidelines were prepared following the WHO handbook for guideline dev...elopment (5). A multidisciplinary development group was formed, comprised of thematic experts, epidemiologists, methodologists, and users. Since there were no existing guidelines that could be adapted, the guidelines were developed from scratch.
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This manual is addressed to health care providers dealing with Mycobacterium ulcerans disease (Buruli ulcer). The manual aims to achieve a better understanding of the disease, its clinical presentation and its surgical management. The manual is aimed particularly at district health care providers. A... comprehensive protocol, adapted to each form and stage of the disease, is presented together with comments on the levels of resources and capabilities necessary
to shorten the length of treatment, to prevent complications and to minimize undesired sequelae and thus to obtain the best possible outcome for each patient. Some sections include advice relevant to surgeons (e.g. relating to bone infection). However, the level to which particular comments are intended to apply should be clear from the context.
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The World Health Organization (WHO) convened a meeting of the Technical Advisory Group on Buruli ulcer at its headquarters in Geneva, Switzerland on 25 to 27 March 2019
Current Tropical Medicine Reports (2018) 5:247–256 https://doi.org/10.1007/s40475-018-0166-2 .Purpose of the Review Buruli ulcer (BU) is a necrotizing and disabling cutaneous disease caused by Mycobacterium ulcerans, one of the skin-related neglected tropical diseases (skin NTDs). This article aim...s to review the current knowledge of this disease and challenges ahead.
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Buruli ulcer caused by Mycobacterium ulcerans is a neglected tropical disease characterized by extensive ulceration involving predominantly the upper and lower limbs of patients. The disease is common in rural tropical communities in West and Central Africa, where access to proper health care is lim...ited. Pathogenesis of the characteristic painless ulcers is linked to the elaboration by M. ulcerans of a lipid toxin called mycolactone that has potent cytopathic, immunosuppressive, and analgesic effects on a host of cells in cutaneous tissues. Mycolactone is known to profoundly inhibit secretion of a plethora of proteins that are essential for wound healing. Even though a combination antibacterial therapy of streptomycin and rifampicin for 8 weeks is effective for treatment, it relies on good and appropriate wound management to prevent secondary bacterial infections and improve healing. Evidence-based interventions for wound care in Buruli ulcer disease are often lacking and have relied on expert advice and recommendations. Surgical interventions are limited to debridement of necrotic tissue and grafting of extensive ulcers, usually after antibiotic therapy. Patients’ rehabilitation is an important component of care to reduce disabilities associated with the disease and proper integration into the community after treatment.
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Nat Commun 9, 5370 (2018). https://doi.org/10.1038/s41467-018-07804-8. Mycobacterium ulcerans is the causative agent of Buruli ulcer, a neglected tropical skin disease that is most commonly found in children from West and Central Africa. Despite the severity of the infection, therapeutic options are... limited to antibiotics with severe side effects. Here, we show that M. ulcerans is susceptible to the anti-tubercular drug Q203 and related compounds targeting the respiratory cytochrome bc1:aa3. While the cytochrome bc1:aa3 is the primary terminal oxidase in Mycobacterium tuberculosis, the presence of an alternate bd-type terminal oxidase limits the bactericidal and sterilizing potency of Q203 against this bacterium. M. ulcerans strains found in Buruli ulcer patients from Africa and Australia lost all alternate terminal electron acceptors and rely exclusively on the cytochrome bc1:aa3 to respire. As a result, Q203 is bactericidal at low dose against M. ulcerans replicating in vitro and in mice, making the drug a promising candidate for Buruli ulcer treatment.
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A manual for health care providers.
This manual provides expert guidance on the laboratory techniques and procedures used in the diagnosis of Buruli ulcer, a disease caused by Mycobacterium ulcerans. Aimed at laboratory technicians and scientists working on this disease, the manual details the exac...t procedures to follow when performing a range of diagnostic tests. Recommended procedures, intended for use throughout the health system, are presented at levels appropriate for peripheral, district and central services and in accordance with the varying resources, skills and equipment typically found in countries where Buruli ulcer is endemic.
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Manuel destiné au personnel de santé. Le présent manuel est un guide spécialisé sur les techniques et les méthodes de laboratoire à utiliser pour le diagnostic de l’ulcère de Buruli, une maladie provoquée par Mycobacterium ulcerans. Destiné aux techniciens et aux scientifi ques de labora...toire travaillant sur cette maladie, le présent manuel décrit les méthodes exactes à mettre en oeuvre pour réaliser un certain nombre de tests diagnostiques. Les procédures recommandées, utilisables dans l’ensemble du système de santé, sont adaptées aux services périphériques, des districts et centraux et ce, conformément aux ressources, compétences et matériel variables que l’on trouve classiquement dans les pays où l’ulcère de Buruli est endémique.
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This document provides the specifications for major pesticide application equipment used for control of vectors of diseases. The specification guidelines contained herein are intended to assist national authorities and other public health users in selecting equipment of assured quality for applicati...on of pesticides for vector control.
The test methods described herein are intended to assess whether the equipment will function for a minimum of three years with appropriate routine maintenance according to the manufacturer’s label instructions. Manufacturers shall be requested to provide warranty against manufacturing defects with guaranteed after-sales service on the equipment, any certification required by national authorities regarding materials used in the construction of the equipment, and results of tests that have been carried out for compliance with national or international specifications.
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This document outlines the evaluation process that WHO undertakes to assess novel tools and strategies targeted at VBDs. Its aim is to articulate the linkage between the generation of evidence that demonstrates public health impact of novel interventions, and the development of policy recommendation...s based on the generated data. The document defines standards for the evaluation process, as well as the steps that an applicant needs to undertake, along with some guiding principles that aim to support applicants in the development of submissions with WHO.
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Le présent document rassemble une série de recommandations émises par l’Organisation mondiale de la Santé (OMS) et l’Organisation panaméricaine de la Santé (OPS) pour aider les professionnels chargés des programmes de lutte antivectorielle en Amérique latine et dans les Caraïbes aux niv...eaux national, infranational et local à mettre à jour et prendre des decisions à base factuelle qui touchent les mesures de lutte antivectorielle les mieux adaptées à chaque situation particulière. La GIV peut être utilisée lorsque la cible est la surveillance et la lutte ou l’élimination (en function de chaque situation) des MTV et peut contribuer à réduire le développement de la résistance aux insecticides au moyen de l’utilisation rationnelle de ces produits. Le présent document contient les instructions nécessaires pour mener à bien le mandat établi par l’OPS en 2008 (résolution CD48.R8, document CD48/13), en particulier, il complémente une série de guides de l’OMS publiés en 2012
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PLoS Negl Trop Dis 15(8): e0009697. Chagas disease (CD), caused by the parasite Trypanosoma cruzi, affects ~6–7 million people worldwide. Significant limitations still exist in our understanding of CD. Harnessing individual participant data (IPD) from studies could support more in-depth analyses t...o address the many outstanding research questions. This systematic review aims to describe the characteristics and treatment practices of clinical studies in CD and assess the breadth and availability of research data for the potential establishment of a data-sharing platform.
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Research and Reports in Tropical Medicine 2022:13 25–40.
Chagas disease (CD) is caused by the parasite Trypanosoma cruzi, and it is endemic in Central, South America, Mexico and the South of the United States. It is an important cause of early mortality and morbidity, and it is associated with po...verty and stigma. A third of the cases evolve into chronic cardiomyopathy and gastrointestinal disease. This review proposes strategies to address challenges faced by non-endemic countries
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PLoS Negl Trop Dis 16(10): e0009774. Although the practice of communication is often called upon when intervening asn involgvingcommunties affected by NTD's, the disciplinary framewokr of healt communication research has been largely absent from NTD strategies. To illustrate how practices conceptual...ized and developed within the communication field habe been applied in the context of NTD elimination, we conducted a scoping review focusing on two diseases currently targeted for elimination by the WHO: lymphatic filariasis and Chagas disease
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April 2022 Volume 35 Issue 2 e00152-21
Population movements have turned Chagas disease (CD) into a global public health problem. Despite the successful implementation of subregional initiatives to control vectorial and transfusional Trypanosoma cruzi transmission in Latin American settings where t...he disease is endemic, congenital CD (cCD) remains a significant challenge. In countries where the disease is not endemic, vertical transmission plays a key role in CD expansion and is the main focus of its control. Although several health organizations provide general protocols for cCD control, its management in each geopolitical region depends on local authorities, which has resulted in a multitude of approaches. The aims of this review are to (i) describe the current global situation in CD management, with emphasis on congenital infection, and (ii) summarize the spectrum of available strategies, both official and unofficial, for cCD prevention and control in countries of endemicity and nonendemicity. From an economic point of view, the early detection and treatment of cCD are cost-effective. However, in countries where the disease is not endemic, national health policies for cCD control are nonexistent, and official regional protocols are scarce and restricted to Europe. Countries of endemicity have more protocols in place, but the implementation of diagnostic methods is hampered by economic constraints. Moreover, most protocols in both countries where the disease is endemic and those where it is not endemic have yet to incorporate recently developed technologies. The wide methodological diversity in cCD diagnostic algorithms reflects the lack of a consensus. This review may represent a first step toward the development of a common strategy, which will require the collaboration of health organizations, governments, and experts in the field.
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В дорожной карте по борьбе с забытыми тропическими болезнями на 2021–2030 гг. («дорожная карта») определены глобальные цели и основные этапы в отношении борьбы с 20 бол...знями и группами болезней, их элиминации или полной ликвидации. В ней также определены сквозные целевые показатели, согласованные с Тринадцатой общей программой работы ВОЗ и Целями в области устойчивого развития, а также стратегии по достижению этих целевых
показателей в течение ближайших десяти лет.
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The road map sets global targets and milestones to prevent, control, eliminate or eradicate 20 diseases and disease groups as well as cross-cutting targets aligned with the Sustainable Development Goals. Three foundational pillars will support global efforts to achieve the targets: accelerate progra...mmatic action (pillar 1), intensify cross-cutting approaches (pillar 2) and change operating models and culture to facilitate country ownership (pillar 3).
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This fourth WHO report on neglected tropical diseases (NTDs) reviews the progress made towards achieving the Roadmap targets for 2020, noting the remaining challenges, then looks beyond 2020 to evaluate the changing global health and development landscape, considering the implications of integrating... these diseases into the broader 2030 Agenda for Sustainable Development.
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