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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Despite the significant role of vector control in national leishmaniasis control programmes, the programmatic community perceives vector control as the weakest component of leishmaniasis control strategies in terms of resources, scientific evidence of the usefulness of interventions and capacity for... quality-assured implementation. Therefore, the main objective of this manual is to provide practical tools, techniques and procedures to strengthen sand fly control and surveillance in order to improve implementation of leishmaniasis control programmes. The manual provides a rationale for programme managers in different geographical regions on the types of vector control interventions to be used in different epidemiological and environmental settings and also how to measure their impact.
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Report of the WHO/Bill & Melinda Gates Foundation Consultation. The Consultation was organized back-to-back with the first annual meeting of the International Coordinating Group of the BMGF-funded project for human and dog rabies elimination in developing countries, held at WHO headquarters, Geneva,... Switzerland, from 5 to 7 October 2009. This allowed the Consultation to benefit from the participation of the national coordinators and advisers of the BMGF-funded projects in the Philippines, South Africa (KwaZulu-Natal) and the United Republic of Tanzania
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Mem Inst Oswaldo Cruz, Rio de Janeiro, Vol. 117: e200460, 2022
Integrating the multiple dimensions of the problem into a coherent approach adapted to field realities and needs represents an immense challenge, but the payoff is more effective and sustainable experiences, with higher social awareness..., increased case detection and follow-up, improved adherence to care, and integrated participation of various actors from multiple action levels. Information, Education, and Communication (IEC) initiatives have great potential for impact in the implementation of multidimensional programs of prevention and control successfully customised to the diverse and complex contexts where Chagas disease persists.
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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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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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Revised and expanded version of the Guidelines
The sub-Saharan African region, carries 90% of the over 250 million cases of schistosomiasis occurring worldwide. In this region, after Nigeria, Tanzania is second country having the highest cases of schistosomiasis and approximately 51.5%0 of the Tanzanian population is either exposed or live in ar...eas with high risk of exposure. The country is endemic to both Schistosoma mansoni and Schistosoma haematobium, these infections are common in communities characterised with limited access to water, sanitation, hygienic practices and health services. Schistosoma mansoni infection is associated with hepatosplenic disease characterised with hepatomegaly, splenomegaly, progressive periportal fibrosis (PPF) which can lead to portal hypertension and its related sequelae, mainly ascites, liver surface irregularities, oesophageal varices and haematemesis. The main consequences of S. haematobium infection are haematuria, dysuria, nutritional deficiencies, urinary bladder lesions, hydronephrosis, urinary bladder squamous cell carcinoma and in children, growth retardation. Preventive chemotherapy using mass drug administration (MDA) of praziquantel targeting primary school aged children is the main strategy for controlling schistosomiasis in Tanzania.
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This document focuses on the management of patients affected by gambiense HAT and
constitutes an update to the WHO therapeutic guidance issued in 2013. The main changes in recommendations concern the criteria and methods for deciding the treatment among the new set of therapeutic options and the pa...rticular conditions that apply to treatment with fexinidazole, as outlined below. Because HAT is a serious, life-threatening disease and because the efficacy of fexinidazole depends on swallowing the medicine after an appropriate intake of food as well as on completing the full 10-day
treatment schedule, the recommendations regarding fexinidazole administration are considered key elements that must be carefully followed. When the conditions listed in these guidelines are not met for any individual patient, the alternative available treatments should be prescribed.
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This training module is designed to equip health workers (HWs) with
knowledge, skills, confidence and resources to help them in their role to recommend the Human Papillomavirus
(HPV) vaccine.
Cholera which disproportionally impacts poor countries and the most vulnerable continues to affect at least 47 countries across the globe, resulting in an estimated 1.3 – 4 million cases, and 21,000 - 143,000 deaths per year worldwide. In Ethiopia, despite major improvements seen in the increasing... access to healthcare, clean water, and improvement in maternal and child health, the country continues to be significantly affected by cholera outbreaks. From 2015 – 2021 for example, several outbreaks of cholera have occurred in multiple parts of the country resulting in over 105,000 cases and thousands of deaths. Some of the risk factors associated with cholera in Ethiopia include inadequate access to clean water, practice of open defecation, poor household and environmental sanitation, unhygienic latrine and weak sanitation practise among communities.
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Un comité OMS d’experts sur la trypanosomiase humaine africaine (THA) : lutte et surveillance, s’est réuni à Genève (Suisse), du 22 au 26 avril 2013. Le Dr H. Nakatani, sous-directeur général pour le VIH/SIDA, la tuberculose, le paludisme et les maladies tropicales négligées, a ouvert la... réunion au nom du Dr M. Chan, directeur-général de l’OMS.
La THA est une maladie qui afflige les populations rurales de l’Afrique, là où prolifère la mouche tsé-tsé (ou glossine), vecteur des trypanosomes qui en sont la cause. On distingue deux formes de THA : la forme à T. b. gambiense ou forme gambienne, endémique en Afrique de l’Ouest et en Afrique centrale et qui
représente actuellement 95 % des cas, et la forme à T. b. rhodesiense ou forme rhodésienne, endémique en Afrique de l’Est et en Afrique australe, à laquelle sont dus les 5 % restants.
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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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This project aimed to reduce the risk of vector-borne infection with Chagas disease by
controlling triatomine bugs, the vectors transmitting the parasite of Chagas disease, and
establishing an epidemiological surveillance system with community participation.
This background document (EUR/RC72/BG/7) was considered and adopted by the WHO Regional Committee for Europe at its 72nd session (Tel Aviv, Israel, 12–14 September 2022), together with the working document (EUR/RC72/7) and information document (EUR/RC72/INF./4). The Regiona...l Committee adopted resolution EUR/RC72/R3, in which it endorsed the framework.
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Yaws is targeted for eradication by 2030, using a strategy based on mass drug administration (MDA) with azithromycin. New diagnostics are needed to aid eradication. Serology is currently the mainstay for yaws diagnosis; however, inaccuracies associated with current serological tests makes it difficu...lt to fully assess the need for and impact of eradication campaigns using these tools. Under the recommendation of the WHO Diagnostic Technical Advisory Group (DTAG) for Neglected Tropical Diseases(NTDs), a working group was assembled and tasked with agreeing on priority use cases for developing target product profiles (TPPs) for new diagnostics tools.
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The WHO Pharmaceuticals Newsletter provides you with the latest information on the safety of medicinal products and regulatory actions taken by authorities around the world.
In addition, this edition includes summary and recommendations from the virtual meeting of the members of the WHO Programme f...or International Drug Monitoring (PIDM) and other partners, which was held on 20 October 2022.
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Rabies has an enormous impact on both agriculture and conservation biology, but its greatest burden is undeniably on public health. As such, routine methods for rapid risk assessment after human exposures to rabies as well as applications for laboratory-based surveillance, production of biologicals ...and management of this infectious disease are critical. Given its mandate to improve human health and control disease among its Member States, WHO has led the production of this fifth edition of Laboratory techniques in rabies.
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Since the beginning of the Ukraine crisis on 24 February 2022, WHO has supported Government-led efforts and initiatives alongside key partners on the ground. Building on efforts to date, and working alongside Bulgaria’s health authorities to bring added value to existing mechanisms, the WHO Countr...y Office Bulgaria, the WHO Regional Office for Europe and the WHO Health and Migration Programme, in close collaboration with the Ministry of Health of Bulgaria and key partners, undertook a joint review mission to support Bulgaria, with a focus on addressing the health system needs of refugees, migrants, asylum seekers and vulnerable host populations in Bulgaria.
The assessment team developed this report on the key findings and a package of potential interventions based on the opportunities identified and the need for technical support and assistance. The report summarizes concrete areas of work for which collaborations can be further strengthened. The joint review team identified key recommendations for consideration across 8 priority areas. The report and the outcomes of the review mission serve as a basis for future technical collaboration in the area of refugee health, to address the health needs of refugees and third-country nationals fleeing from Ukraine.
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