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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Front. Public Health, 02 July 2019 Sec. Infectious Diseases: Epidemiology and Prevention
Volume 7 - 2019 | https://doi.org/10.3389/fpubh.2019.00166
Chagas disease (CD) is an anthropozoonosis caused by the protozoan parasite Trypanosoma cruzi, that affects about 6–8 million people worldwide (1) a...nd causes approximately 50,000 deaths per year. Another 65–100 million people are living in areas at risk for infection worldwide (2–4). Even though over a century has passed since its discovery, CD remains one of the leading public health problems for most Latin American countries
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El informe de este año presenta una actualización de la situación de la seguridad alimentaria y la nutrición en América Latina y el Caribe, incluyendo también estimaciones actualizadas sobre el costo y la asequibilidad de una dieta saludable (Parte 1). Además, el informe examina el complejo e...scenario económico y social de la región y su impacto en el costo de las dietas saludables, para luego entregar un examen del costo y la asequibilidad de una dieta saludable a nivel subregional y nacional, incluyendo las asociaciones entre la inasequibilidad de una dieta saludable y los indicadores socioeconómicos y nutricionales (Parte 2). Además, esta edición del Panorama regional presenta un análisis de algunas políticas alimentarias y agrícolas que se están implementando en la región y que tienen el potencial de apoyar el acceso a dietas saludables, así como los factores y dinámicas a través de los cuales éstas actúan.
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Chagas disease, or American trypanosomiasis, is a condition that causes gradual organ damage. Without treatment, it can be fatal.
This article explains where the T. cruzi parasite is most common and how it can spread. It also outlines the symptoms of Chagas disease and the treatment options avail...able.
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This document compiles the recommendations made by the World Health Organization (WHO) and the Pan American Health Organization (PAHO) to help professionals in charge of vector control programs in Latin America and the Caribbean at the national, subnational, and local level update their knowledge in... order to make evidence-based decisions on the most appropriate control measures for each specific situation. IVM can be used for surveillance and control or for elimination of VBDs and can help reduce the development of insecticide resistance through the rational use of these products. This document provides instructions for fulfillment of the 2008 PAHO mandate set forth in CD 48/13 (Integrated Vector Management).
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El presente documento reúne un conjunto de recomendaciones formuladas por la Organización Mundial de la Salud (OMS) y la Organización Panamericana de la Salud (OPS) para ayudar, a los profesionales encargados de los programas de control de vectores de Latinoamérica y el Caribe a nivel nacional, ...subnacional y local, a actualizar y tomar decisiones basadas en la evidencia sobre las medidas de control más apropiadas para cada situación específica. El MIV puede utilizarse cuando la meta es la vigilancia y el control o la eliminación (dependiendo de la situación específica) de las ETV y puede contribuir a reducir el desarrollo de la Resistencia a los insecticidas mediante el uso racional de estos productos. Este documento contiene las instrucciones para llevar a cabo el mandato de la OPS del 2008 sobre el control integrado de vectores (resolución CD48.R8, documento CD48/13) y, en particular, complementa una serie de guías de la OMS publicadas en el 2012
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Este documento reúne um conjunto de recomendações formuladas pela OMS e pela OPAS para ajudar os profissionais responsáveis pelos programas de controle de vetores nas Américas em nível nacional, subnacional e local a se atualizarem e tomarem decisões baseadas em evidências sobre as medidas d...e controle mais apropriadas para cada situação. O MIV pode ser utilizado quando o objetivo é a vigilância e o controle ou a eliminação (dependendo da situação específica) das DTVs e pode ajudar a reduzir o desenvolvimento de resistência aos inseticidas pelo uso racional desses produtos. Este documento contém instruções para a execução do mandato de 2008 da OPAS sobre o manejo integrado de vetores (resolução CD48.R8, documento CD48/13) e, em particular, complementa uma série de diretrizes da OMS publicadas em 2012
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About six to seven million people worldwide, mostly in Latin America, are estimated to be infected with
Trypanosoma cruzi, the parasite that causes Chagas disease (WHO data from 2021). Chagas disease is
found mainly in endemic areas of 21 Latin American countries. Chagas disease was once entirely
...
confined to rural areas but in the last decades, due to population movements, most infected people live
in urban settings and the disease has spread to other continents. The burden of disease is due to its
chronic progression with people still suffering years later after initial infection.
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Chagas disease is caused by Trypanosoma cruzi, a protozoal organism primarily transmitted by triatomine insect vectors, also known as “kissing bugs.” It is a zoonotic disease originally described by Brazilian physician Dr. Carlos Chagas in 1909 and is widespread in Latin America. Although triato...mines and T. cruzi have long been endemic to the southern United States, awareness and identification of infected vectors and animals have recently increased throughout the United States. Canine Chagas disease can be acute or chronic and is predominantly characterized by inflammation and fibrosis of the heart, resulting in arrhythmias, myocardial dysfunction, heart failure, and sudden death, although many infected dogs are asymptomatic.
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Epidemiology
Chagas disease (American trypanosomiasis) is caused by the protozoan parasite Trypanosoma cruzi, and transmitted to humans by infected triatomine bugs, and less commonly by transfusion, organ transplant, from mother to infant, and in rare instances, by ingestion of contaminated food or... drink.1-4 The hematophagous triatomine vectors defecate during or immediately after feeding on a person. The parasite is present in large numbers in the feces of infected bugs, and enters the human body through the bite wound, or through the intact conjunctiva or other mucous membrane.
Vector-borne transmission occurs only in the Americas, where an estimated 8 to 10 million people have Chagas disease.5 Historically, transmission occurred largely in rural areas in Latin America, where houses built of mud brick are vulnerable to colonization by the triatomine vectors.4 In such areas, Chagas disease usually is acquired in childhood. In the last several decades, successful vector control programs have substantially decreased transmission rates in much of Latin America, and large-scale migration has brought infected individuals to cities both within and outside of Latin America.
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Information for the General Public
Chagas disease (CD) is endemic in the Americas, being present in 21 countries, where it affects about 6 million
people.(1) With such relevant numbers of people affected and disability adjusted life years lost, CD is a poverty-related
and poverty-promoting disease.
Although data describe a relevan...t ongoing public health problem for the American continent, significant results
in the interruption of transmission has been achieved by coordinated multi-country programs. In particular, the
Southern Cone Initiative (SCI), officially formalised in November 1991 by the Ministers of Health of Argentina, Brazil, Bolivia, Chile, Paraguay and Uruguay, has shown how a well-designed control program can significantly reduce
CD transmission.(2) Before this initiative, in these countries, there were 11 million infected persons and 50 million at
risk, 62% of the infected individuals of the whole continent.
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Epidemiological Update
Dengue
7 February 2020
Situation summary
In the Region of the Americas, between epidemiological week (EW) 1 and EW 521 of 2019, a total of 3,139,335 cases of dengue have been reported (321.58 cases per 100,000 population), including 1,538 deaths. Of the total cases, 1,367,...353 (43.6%) were laboratory-confirmed and 28,169 (0.9%) were classified as severe dengue. The case-fatality rate was 0.049%.
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Little progress has been made since the 1960s and 1970s to widen the therapeutic arsenal against Trypanosoma cruzi, the causative pathogen of Chagas disease, which remains a frustrating and perplexing infectious disease. This chapter focuses on the strategic and operational challenges in the clinica...l drug development of a novel antitrypanosomal agent for Chagas disease. The various elements that contribute to a robust assessment of treatment effect including dose selection, choice of patient population, trial methodology, endpoint measures, and regulatory perspectives are discussed. The learnings herein should serve as resource to help researchers and other stakeholders optimize their clinical development plans and speed delivery of new medicines to patients with Chagas disease.
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Chagas disease (CD) is caused by Trypanosoma cruzi. When acquired, the
disease develops in stages. For diagnosis, laboratory confirmation is required, and an extensive assessment of the patient’s health should be performed. Treatment consists of the administration of trypanocidal drugs, which may... cause severe adverse effects. The objective of our systematic review was to analyze data contained in the CD published case reports to understand the challenges that patients and clinicians face worldwide.
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This review focusses on the interactions between the etiologic agent of Chagas disease, Trypanosoma cruzi, and its triatomine vector. The flagellate mainly colonizes the intestinal tract of the insect. The effect of triatomines on trypanosomes is indicated by susceptibility and refractoriness phenom...ena that vary according to the combination of the strains. Other effects are apparent in the different regions of the gut. In the stomach, the majority of ingested blood trypomastigotes are killed while the remaining transform to round stages. In the small intestine, these develop into epimastigotes, the main replicative stage. In the rectum, the population density is the highest and is where the infectious stage develops, the metacyclic trypomastigote. In all regions of the gut, starvation and feeding of the triatomine affect T. cruzi. In the small intestine and rectum, starvation reduces the population density and more spheromastigotes develop. In the rectum, feeding after short-term starvation induces metacyclogenesis and after long-term starvation the development of specific cells, containing several nuclei, kinetoplasts and flagella. When considering the effects of T. cruzi on triatomines, the flagellate seems to be of low pathogenicity. However, during stressful periods, which are normal in natural populations, effects occur often on the behaviour, eg, in readiness to approach the host, the period of time before defecation, dispersal and aggregation. In nymphs, the duration of the different instars and the mortality rates increase, but this seems to be induced by repeated infections or blood quality by the feeding on infected hosts. Starvation resistance is often reduced by infection. Longevity and reproduction of adults is reduced, but only after infection with some strains of T. cruzi. Only components of the surface coat of blood trypomastigotes induce an immune reaction. However, this seems to act against gut bacteria and favours the development of T. cruzi.
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Chagas disease affects approximately 6 million people, mainly in Latin America. Less than 1% of affected individuals receive proper antiparasitic treatment, and current drugs are inadequate to fight the entire spectrum of the disease. Against this background, Novartis is pursuing an end-to-end appro...ach, with activity on three fronts: drug discovery, clinical research and health system strengthening.
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American trypanosomiasis, commonly called
Chagas disease (CD), was prevalent once in rural areas
of Latin America where poverty is widespread and was
considered a silent and poorly visible disease. It
has become a global neglected tropical disease and a
significant public health th...reat worldwide due to
globalization over last century. More recently, it has
attracted much more attention, and “April 14” has
been designated as “World Chagas Disease Day” by
the World Health Assembly of 2019 to raise
awareness of the disease as a neglected tropical disease,
to improve the rates of early treatment and recovery,
and to achieve the ambitious goal to interrupt its
transmission.
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Coherent Market Insights has announced the addition of Chagas Disease Treatment Market 2023 Forecast Analysis by Types, Applications, Size, Share, Key Players, and Regions. a new research report to its market research archive. The Chagas Disease Treatment Market has been thoroughly researched and an...alyzed by industry experts and researchers. The industry is examined at the global, regional, and national levels. The report highlights the primary revenue stream for the estimated year, along with sales volumes, growth patterns, and major industry market dynamics. The historical data is provided, as well as a comprehensive revenue analysis for the forecast period. The report focuses on the size, share, growth status, and future trends of the Chagas Disease Treatment Market, as well as recent business developments.
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This technical report presents the epidemiology of human and animal leishmaniases in the EU and its neighbouring countries and concludes that the disease remains widespread and underreported in many countries of southern Europe, northern Africa, and the Middle East and that there is a need to improv...e leishmaniasis prevention and control based on robust surveillance in humans, animals, and vectors, and to increase public awareness following a one health approach.
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