La serovigilancia es una herramienta que complementa los métodos tradicionales de salud pública para la vigilancia de las enfermedades transmisibles y proporciona información valiosa sobre la transmisión de enfermedades en los grupos de la población; por ejemplo, para detectar brechas en la inm...unidad frente a las enfermedades prevenibles mediante vacunación. Esta información es útil para hacer un seguimiento de la exposición de la población a enfermedades como la malaria, las enfermedades infecciosas desatendidas, las enfermedades transmitidas por alimentos, agua y vectores, así como las enfermedades infecciosas emergentes. Como muchas enfermedades infecciosas están o han estado presentes en grupos que viven en entornos donde se superponen diversos factores de riesgo, la serovigilancia integrada facilita las sinergias y optimiza la utilización de los recursos de salud pública. Este conjunto de herramientas se elaboró para facilitar el diseño, la puesta en marcha, el análisis, la interpretación y el uso de los resultados de las encuestas serológicas integradas para reforzar las capacidades de los países con vistas a la eliminación de las enfermedades transmisibles. En la primera parte se describen los conceptos básicos sobre encuestas y vigilancia serológicas, sus usos, ventajas y desafíos, formas de mejorar su eficiencia, así como su potencial para contribuir a la toma de decisiones de salud pública. Posteriormente, se presenta un proceso gradual para la puesta en marcha de la vigilancia serológica integrada basada en encuestas serológicas. Incluye recomendaciones sobre cómo determinar la necesidad y el propósito de recopilar información serológica; el diseño y la metodología de la encuesta; los métodos del laboratorio; las consideraciones prácticas para la realización de encuestas; el análisis e interpretación de los datos y el uso de los resultados para respaldar la toma de decisiones. Su objetivo principal es apoyar a los directores de programas y equipos que participan en el control y eliminación de las enfermedades transmisibles. Se elaboró para ser usado, entre otros, por los coordinadores de enfermedades transmisibles, enfermedades infecciosas desatendidas y programas de vacunación; directores de vigilancia epidemiológica; personal de laboratorios de salud pública; y otros profesionales de los ministerios de salud y autoridades nacionales y subnacionales de salud que puedan estar interesados en incorporar la vigilancia serológica integrada como parte de las herramientas de sus sistemas de vigilancia, para obtener información adicional sobre la transmisión de enfermedades infecciosas en la población.
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A lot has happened this year. While we continued to tackle the COVID-19 pandemic, we were hit by disease outbreaks and
humanitarian crises. Yet, despite these challenges, we marched on, resolute in resolving critical health systems issues to increase
access to quality healthcare services. To furth...er our vision and bring concrete actions to reality, under
the leadership of the Government of South Sudan, we developed the Health Sector Strategic Plan to define the strategic
approaches, key interventions, mapping resource needs, and the implementation framework to strengthen the health system
to deliver essential quality health services equitably for 2023 to 2027. For WHO, this Plan will usher in a new reality -- access
to lifesaving or health-promoting interventions is doable and possible, making the health sector fairer, especially for those
unable to pay
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Durante muchos años, la enfermedad de Chagas ha sido una entidad olvidada en nuestro medio, pese a que Colombia posee las condiciones apropiadas para que esta infección se desarrolle y se perpetúe en el tiempo.
Esto se refleja en el poco conocimiento de la enfermedad y en la existencia de muchos... individuos que sufren una pérdida significativa de su calidad y esperanza de vida, así como en costos importantes para el sistema de salud.
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Human African trypanosomiasis (HAT), or sleeping sickness, is an endemic disease in 36 sub-Saharan African countries, typically occurring in underdeveloped areas, where
health systems face significant difficulties of diverse natures.
This companion document to Ending the neglect to attain the Sustainable Development Goals: a road map for neglected tropical diseases 2021-2030 ("the road map") aims to support a range of stakeholders - including countries in which neglected tropical diseases (NTDs) are endemic, international organi...zations and non-State actors - to achieve the road map targets through a transdisciplinary, cross-cutting One Health approach. Specifically, it provides guidance on the One Health actions needed by major stakeholders and how to support a paradigm shift towards One Health in national NTD programmes. Examples of common One Health challenges and how they can be overcome as well as illustrative cases studies are provided throughout. The companion document was developed through a global consultative process involving stakeholder interviews, interactive workshops, and online public consultation.
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Accessed on 04.04.2023
The Drugs for Neglected Diseases initiative (DNDi) is an international
non-profit organization that discovers, develops, and delivers safe,
effective, and affordable treatments for the most neglected patients
Chagas disease is currently endemic and also predicted to be at increased transmission risk under future climate change scenarios. Similarly, an expansion of areas in the United States at increased risk for Chagas disease transmission is also expected over the next several decades under climate chan...ge scenarios. Of particular interest is the predicted northern shift of triatomine species to central regions of the United States with historically unsuitable climates for T. cruzi vectors. The weight of evidence regarding the influences climate change may pose on T. cruzi vector species distributions demonstrates the sensitivity of Chagas disease transmission to future climate variability. In order to advance forecasts for the impact climate change may have on Chagas disease transmission in the Americas, it is imperative to
further develop, utilize, and perhaps combine predictive species distribution modeling approaches that integrate accurate, long term data on climate variables, vector species distributions, Chagas disease incidence, as well as other socio-ecological variables.
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Report of a global meeting on yaws eradication surveillance, monitoring and evaluation: Geneva, 29–30 January 2018. World Health Organization.
In support of the London Declaration goals, PATH aims to catalyze engagement of the diagnostics industry and product development efforts. As part of this work, PATH conducted a diagnostic landscape analysis to identify gaps and evaluated current and nascent HAT diagnostics that may provide solutions....
We conducted literature reviews and interviews with key stakeholders to identify use cases for HAT diagnostics, understand current practices, and analyze progress toward more robust diagnostics across
different biomarkers.
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Chromoblastomycosis (CBM), represents one of the primary implantation mycoses caused by melanized fungi widely found in nature. It is characterized as a Neglected Tropical Disease (NTD) and mainly affects populations living in poverty with significant morbidity, including stigma and discrimination.
The desired impact of the OH JPA is a world better able to prevent, predict, detect and
respond to health threats and improve the health of humans, animals, plants and the
environment while contributing to sustainable development. The OH JPA aims to work
towards this vision in the following way:
...
• Provide a framework for action and propose a set of activities the four organizations
can offer together to advance and sustainably scale up One Health.
• Provide upstream policy and legislative advice and technical assistance, to help
set national targets and priorities across the sectors for the development and
implementation of One Health legislation, initiatives and programmes.
• Take stock of existing cross-sectoral global and regional initiatives around One
Health, identify and advise on synergies and overlaps, and support coordination.
• Mobilize and make better use of resources across sectors, disciplines and
stakeholders.
• The OH JPA is guided by a theory of change and makes use of One Health principles
to strengthen collaboration, communication, capacity building and coordination
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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 analysis focused on the chronic form of HAT caused by T. b. gambiense, as it contributes to the majority of disease burden. Information from the literature review,
product development landscape, and stakeholder interviews was compiled to:
- Identify use cases and understand current diagnosti...c practices and tools associated with each use case.
- Analyze progress toward robust diagnostics for HAT across different biomarkers.
- Develop recommendations for steps to improve the availability, access, and adoption of HAT diagnostic tools.
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Yaws is a disfiguring non-venereal disease caused by infection with the spirochaete. Treponema pallidum subspecies pertenue which is closely related to the causative agent of syphilis and those of the other endemic treponematoses, bejel and pinta. The disease is endemic in certain areas of the World... Health Organization (WHO) African, South-East Asia and Western Pacific regions. Of the neglected tropical diseases identified for elimination and eradication, yaws is one of two diseases targeted for eradication. In 1949, the Second World Health Assembly adopted resolution WHA2.36, which addresses yaws, bejel and pinta as major public health problems that need attention.
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Over the past twenty years, huge efforts made by a broad coalition of stakeholders curbed the last epidemic and brought the disease to the brink of elimination. In this paper, the latest figures on disease occurrence, geographical distribution and control activities are presented. Strong evidence in...dicates that the elimination of sleeping sickness ‘as a public health problem’ by 2020 is well within reach. In particular, fewer than one thousand new cases were reported in 2018, and the area where the risk of infection is estimated as moderate, high or very high has shrunk to less than 200,000 km2. More than half of this area is in the Democratic Republic of the Congo. The interruption of transmission of the gambiense form, targeted by the World Health Organization (WHO) for 2030, will require renewed efforts to tackle a range of expected and unexpected challenges. The rhodesiense form of the disease represents a small part of the overall HAT burden. For this form, the problem of under detection is on the rise and, because of an important animal reservoir, the elimination of disease transmission is not envisioned at this stage.
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Arsenical monotherapies were previously very successful for treating human African trypanosomiasis (HAT).
Melarsoprol resistance emerged as early as the 1970s and was widespread by the late 1990s.
Melarsoprol resistance represents the only example of widespread drug resistance in HAT patients wher...e the genetic mechanism has been established.
The current goal of elimination of HAT as a public health problem by 2020 may be undermined by the emergence and spread of resistance to current or new drugs.
Insights into potential resistance mechanisms for current and new drugs will facilitate predictions of the likelihood of resistance and will also facilitate rational approaches to minimizing, monitoring, and tackling the future emergence of resistance.
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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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During the year 2022, COVID-19 continued to be a significant challenge in Eritrea as in many other countries across the world. As COVID-19 devastated communities around the world, WHO worked with the MoH to strengthen the National and Sub-National health systems in order to meet community needs and ...mitigate the devastation during the pandemic and beyond.
One of the major achievements in the year 2022 was the beginning of the journey towards validation of
the elimination of mother to child transmission of HIV, syphilis, and hepatitis B. This is the culmination of years
of commitment and determination by the political leadership, national and international partnerships to
reduce the associated indices to levels that qualify for elimination.
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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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PLoS Neglected Tropical diseases August 16, 2021 https://doi.org/10.1371/journal.pntd.0009697
Chagas disease, also known as American trypanosomiasis, is a neglected tropical disease transmitted by triatomine insects, first identified in 1909. Chagas disease affects approximately 6–7 million peop...le globally and is highly prevalent in Latin America where most cases are reported. However, there is increasing evidence that Chagas disease is now an important public health issue outside the “classical” endemic countries due to population migration. Our understanding of Chagas disease, including its pathologies and factors relating to progression, remains to date limited, and is also challenged by lack of diagnosis and highly effective treatment. This systematic review aims to describe studies with Chagas patients receiving antiparasitic treatment. Databases were searched for relevant studies published after 1997, and the results of these searches were screened.
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