Recent systematic reviews and meta-analysis of the impact of chemical-based mollusciciding (King et al., 2015, Sokolow et al., 2016) have concluded that regular mollusciciding is likely to contribute significantly towards elimination of schistosomiasis in high-risk areas. The WHO roadmap’s new foc...us on “transmission control, wherever possible” (WHO, 2012a) reinforces the need to promote intermediate-host snail control to prevent schistosomiasis transmission.
This operational manual is intended to facilitate the reintroduction of practices and protocols for use of molluscicides in the field in schistosomiasis control programmes. It is complemented by guidelines on the laboratory and field testing of the efficacy of molluscicides for schistosomiasis control (WHO, 2017 [in preparation]).
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Goal and objectives of the guideline
The goal of this guideline is to provide evidence-based recommendations to countries in their efforts to accomplish schistosomiasis morbidity control and elimination as a public health problem, and to move towar...ds interruption of transmission.
The recommendations contained herein will help countries to implement national schistosomiasis control and elimination programmes and support efforts to verify the interruption of transmission.
The specific objectives are to provide guidance on:
prevalence thresholds, target age groups and frequency of preventive chemotherapy for schistosomiasis;
establishment of water, sanitation and hygiene (WASH) and snail control activities to support control and elimination of schistosomiasis;
use of diagnostic tests in humans in low transmission areas and for moving to, and evaluating the interruption of transmission of schistosomiasis;
tools for the assessment of Schistosoma spp. infection in snail hosts; and
diagnostic tests for the assessment of schistosomiasis infection in animal reservoirs of infection
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For the control of vectors and pests of public health importance. Sixth edition
The Global vector control response 2017–2030 (GVCR) provides a new strategy to strengthen vector control worldwide through increased capacity, improved surveillance, better coordination and integr...ated action across sectors and diseases.
In May 2017, the World Health Assembly adopted resolution WHA 70.16, which calls on Member States to develop or adapt national vector control strategies and operational plans to align with this strategy.
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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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This document provides up-to-date guidance on laboratory studies as well as smallscale (semi-field) and large-scale field trials to assess the efficacy and determine field
application rates of new molluscicide products for control of schistosomia...sis.
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Schistosomiasis is widely recognized as a disease that is socially determined. An understanding of the social and behavioural factors linked to disease transmission and control should play a vital role in designing policies and strategies for schist...osomiasis prevention and control. To this must be added the awareness that schistosomiasis is also a disease of poverty. It still survives in poverty-stricken, remote areas where there is little or no safe water or sanitation, and health care is scarce or non-existent. For a variety of complex reasons, many of which are addressed in this book, the disease is particularly prevalent in sub-Saharan Africa, and persists in certain areas of rural China. This concern for human behaviour in an environment of poverty echoes the concerns of the new research priority for “diseases of poverty” identified by the Special Programme for Research & Training in Tropical Diseases.
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Schistosomiasis is widely recognized as a disease that is socially determined. An
understanding of the social and behavioural factors linked to disease transmission and
control should play a vital role in designing policies and strategies for schi...stosomiasis
prevention and control. To this must be added the awareness that schistosomiasis is
also a disease of poverty. It still survives in poverty-stricken, remote areas where there
is little or no safe water or sanitation, and health care is scarce or non-existent. For
a variety of complex reasons, many of which are addressed in this book, the disease
is particularly prevalent in sub-Saharan Africa, and persists in certain areas of rural
China. This concern for human behaviour in an environment of poverty echoes the
concerns of the new research priority for “diseases of poverty” identified by the
Special Programme for Research & Training in Tropical Diseases.
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https://doi.org/10.1371/journal.pntd.0002439
South Sudan has a high burden – among the highest in sub-Saharan Africa – of neglected tropical diseases (NTDs). This adversely affects the health and social and economic well-being of people in the country. The prevention, ...-highlight medbox">control and eventual elimination of many NTDs depend heavily on improved access to water, sanitation and hygiene (WASH) and, once there is access, on sound sanitation and hygiene practices. This is especially the case in NTD endemic communities.
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Health ministries currently lack effective tools for monitoring and evaluation of schistosomiasis control programmes. Egg detection can be used, but the cost, challenges of obtaining samples, and the need for trained personnel and equipment limit th...e frequency of monitoring. The purpose of this TPP is to guide the development of new diagnostic tools to reliably measure when prevalence is above or below a cut-off of 10% in school-aged children. Communities remaining above 10% require annual MDA, while communities below 10% can reduce MDA frequency as long as < 10% prevalence can be maintained. However, the lack of a reliable test has hindered the development of maintenance strategies. The test is also needed to track changes of prevalence > 10% to ensure that annual MDA is reducing overall prevalence.
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Schistosomiasis is a neglected tropical disease of global medical and veterinary importance. As efforts to eliminate schistosomiasis as a public health problem and interrupt transmission gather momentum, the potential zoonotic risk posed by livestock Schistosoma species via viable hybridisation in s...ub-Saharan Africa have been largely overlooked. We aimed to investigate the prevalence, distribution, and multi-host, multiparasite transmission cycle of Haematobium group schistosomiasis in Senegal, West Africa.
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Manual for Training in Cancer Control
With this World Health Day, WHO is drawing attention to a group of diseases that are spread by insects and other vectors, the heavy health and economic burdens they impose, and what needs to be done to reduce these burdens. Many of these diseases have been historically confined to distinct geographi...cal areas, but this situation has become more fluid due to a host of ills, including climate change, intensive farming, dams, irrigation, deforestation, population movements, rapid unplanned urbanization, and phenomenal increases in international travel and trade. The control of vector-borne diseases can make a major contribution to poverty reduction, as it precisely targets the poor
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The primary audience for this guidance is persons
working directly in vector-borne disease prevention
and control, including programme managers,
researchers and field workers. A brief technical
background is provided for the benefit of persons
...without expertise in vector-borne diseases; readers
working in the field may wish to skip the background
section and begin with the discussion of ethical
issues and values in Chapter 3. The guidance cannot
offer universally applicable answers to the complex
ethical issues raised, nor can it provide a checklist of
issues that are necessarily relevant in all situations.
Rather, its goal is to help readers recognize aspects
of their work that raise significant ethical challenges
and to respond to these challenges in accordance
with internationally accepted values and norms.
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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, sub...national, 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 vector...es 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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The document presents briefly Mozambique's profile on neglected tropical diseases, as well as recommendations on how to control them.