Report of the third conference organized with ICONZ, DFID-RIU, Gates Foundation,
SOS, EU, TDR and FAO with the participation of ILRI and OIE
WHO headquarters, Geneva, Switzerland
23–24 November 2010
In this report we have tried to present the various issues, problems and
challenges that ...were discussed against the backdrop of the many inspiring
control programmes that were presented. Again and again these programmes
demonstrated how the NZDs are not so much re-emerging as rediscovered
– once a concerted effort is made to fi nd and treat patients – and how both
control and prevention rely on involving and inspiring the animal keeping
communities where they prevail.
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The objectives of the meeting were:
1. To update the current status of the disease transmission, country capacities and plans for tackling the disease.
2. To understand the epidemiology including disease distribution and risk, the models
for estimating under-detection, the geographical variati...ons of in clinical presentation,
the roles of domestic and wild animal reservoirs and the subsequent different
transmission patterns and control approaches, including vector control.
3. To update current research and development efforts for improving diagnostic and
treatment tools.
4. To define the goals for achieving the control of r-HAT, the need for a multisectoral
approach and to discuss the strategy for controlling r-HAT and the coordination
mechanisms.
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TDR (Tropical Disease Research) Annual Report 2018
Chagas heart disease (CHD) affects approximately 30% of patients chronically infected with the protozoa Trypanosoma cruzi. CHD is classified into four stages of increasing severity according to electrocardiographic, echocardiographic, and clinical criteria. CHD presents with a myriad of clinical man...ifestations, but its main complications are sudden cardiac death, heart failure, and stroke. Importantly, CHD has a higher incidence of sudden cardiac death and stroke than most other cardiopathies, and patients with CHD complicated by heart failure have a higher mortality than patients with heart failure caused by other etiologies. Among patients with CHD, approximately 90% of deaths can be attributed to complications of Chagas disease. Sudden cardiac death is the most common cause of death (55%-60%), followed by heart failure (25%-30%) and stroke (10%-15%). The high morbimortality and the unique characteristics of CHD demand an individualized approach according to the stage of the disease and associated complications the patient presents with. Therefore, the management of CHD is challenging, and in this review, we present the most updated available data to help clinicians and cardiologists in the care of these patients. We describe the clinical manifestations, diagnosis and classification criteria, risk stratification, and approach to the different clinical aspects of CHD using diagnostic tools and pharmacological and non-pharmacological treatments.
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En 2015, l’OMS a publié la Stratégie et plan d’action sur WASH et les MTN à l’échelle mondiale qui propose de nouvelles méthodes de collaboration aux partenaires et les incite à investir dans les programmes en vue de soutenir la réalisation des objectifs de la feuille de route 2012 de l...’OMS contre les maladies tropicales négligées. Le cadre BEST, élaboré en 2016 par le réseau des ONG de développement chargées de la lutte contre les MTN, appuie la stratégie en proposant un cadre conceptuel utile pour
faire en sorte que toutes les activités nécessaires à l’élimination des MTN,
notamment l’approvisionnement en eau et l’assainissement ainsi que les
autres interventions essentielles d’élimination des MTN, soient menées à bien tout en garantissant la pérennité et le renforcement des systèmes de santé. Le cadre BEST peut être utilisé pour aider à planifier, financer et adopter des approches globales ciblant les groupes de population qui en ont le plus besoin.
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Background: The human helminth infections include ascariasis, trichuriasis, hookworm infections, schistosomiasis, lymphatic filariasis (LF) and onchocerciasis. It is estimated that almost 2 billion people worldwide are infected with helminths. Whilst the WHO treatment guidelines for helminth infecti...ons are mostly aimed at controlling morbidity, there has been a recent shift with some countries moving towards goals of disease elimination through mass drug administration, especially for LF and onchocerciasis. However, as prevalence is driven lower, treating entire populations may no longer be the most efficient or cost-effective strategy. Instead, it may be beneficial to identify individuals or demographic groups who are persistently infected, often termed as being “predisposed” to infection, and target treatment at them.
Methods: The authors searched Embase, MEDLINE, Global Health, and Web of Science for all English language, humanbased papers investigating predisposition to helminth infections published up to October 31st, 2017. The varying definitions used to describe predisposition, and the statistical tests used to determine its presence, are summarised. Evidence for predisposition is presented, stratified by helminth species, and risk factors for predisposition to infection are identified and discussed.
Results: In total, 43 papers were identified, summarising results from 34 different studies in 23 countries. Consistent evidence of predisposition to infection with certain species of human helminth was identified. Children were regularly found to experience greater predisposition to Ascaris lumbricoides, Schistosoma mansoni and S. haematobium than adults. Females were found to be more predisposed to A. lumbricoides infection than were males. Household clustering of infection was identified for A. lumbricoides, T. trichiura and S. japonicum. Ascaris lumbricoides and T. trichiura also showed evidence of familial predisposition. Whilst strong evidence for predisposition to hookworm infection was identified, findings with regards to which groups were affected were considerably more varied than for other helminth species.
Conclusion: This review has found consistent evidence of predisposition to heavy (and light) infection for certain human helminth species. However, further research is needed to identify reasons for the reported differences between demographic groups. Molecular epidemiological methods associated with whole genome sequencing to determine ‘who infects whom’ may shed more light on the factors generating predisposition.
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Website last accessed on 04.04.2023
A step-by-step guide for teachers on how to conduct a school deworming day!
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 laboratoire travaillant sur cette maladie, le ...présent manuel décrit les méthodes exactes à mettre en œuvre 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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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
Accessed on 04.04.2023
Die Initiative Medikamente gegen vernachlässigte Krankheiten (Drugs for Neglected Diseases initiative, DNDi) ist eine internationale gemeinnützige Organisation, die sichere, wirksame und bezahlbare Behandlungen für die am meisten vernachlässigten Patient:innen erforsch...t, entwickelt und bereitstellt.
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Accessed on 04.04.2023
La Iniciativa Medicamentos para Enfermedades Olvidadas (DNDi) es una organización
internacional sin fines de lucro que proporciona tratamientos seguros, eficaces y
asequibles para los pacientes más desatendidos, desde el laboratorio hasta su llegada
a las manos de ...las poblaciones más vulnerables del mundo.
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Accessed on 04.04.2023
L’initiative Médicaments contre les Maladies Négligées (DNDi) est une organisation
internationale à but non lucratif spécialisée dans la recherche, le développement et la mise à disposition de traitements sûrs, efficaces et abordables aux patients les plus né...gligés.
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Accessed on 04.04.2023
A Iniciativa Medicamentos para Doenças Negligenciadas (DNDi) é uma organização
internacional sem fins lucrativos que disponibiliza medicamentos seguros, eficazes
e acessíveis para doenças negligenciadas, desde o laboratório até sua chegada às
mãos das popula...ções mais vulneráveis do mundo.
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Kinetoplastid parasites have caused human disease for millennia. Significant achievements have been made toward developing new treatments for leishmaniasis (particularly on the Indian subcontinent) and for human African trypanosomiasis (HAT). Moreover, the sustained decrease in the incidence of HAT... has made the prospect of elimination a tantalizing reality. Despite the gains, no new chemical or biological entities to treat kinetoplastid diseases have been registered in more than three decades, and more work is needed to discover safe and effective therapies for patients with Chagas disease and leishmaniasis. Advances in tools for drug discovery and novel insights into the biology of the host−parasite interaction may provide opportunities for accelerated progress. Here, we summarize the output from a gathering of scientists and physicians who met to discuss the current status and future directions in drug discovery for kinetoplastid diseases.
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Lymphatic filariasis, commonly known as elephantiasis, is a neglected tropical disease. Infection occurs when filarial parasites are transmitted to humans through mosquitoes. When a mosquito with infective stage larvae bites a person, the parasites are deposited on the person’s skin from where the...y enter the body. The larvae then migrate to the lymphatic vessels where they develop into adult worms in the human lymphatic system.
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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.
Website last accessed on 14.04.2023
Les trématodes d'origine alimentaire sont des zoonoses et leurs agents pathogènes ne peuvent être transmis à l'homme qu'après avoir accompli un cycle de vie complexe, dont certaines étapes se déroulent dans un hôte animal intermédiaire. Les premiers h...ôtes intermédiaires de toutes les espèces de trématodes sont les escargots d'eau douce. Le deuxième hôte diffère selon l'espèce : dans le cas de la clonorchiase et de l'opisthorchiase, il s'agit de poissons d'eau douce, et dans le cas de la paragonimiase, de crustacés.
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Website last accessed on 14.04.2023
Трематодозы пищевого происхождения являются зоонозами, и их возбудители могут передаваться человеку только после завершения сложного жизне...нного цикла, некоторые стадии которого протекают в организме промежуточного животного хозяина. Первыми промежуточными хозяевами всех видов трематод являются пресноводные улитки. Второй хозяин бывает разным в зависимости от вида: в случае клонорхоза и описторхоза это пресноводные рыбы, а в случае парагонимоза — ракообразные.
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Website last accessed on 14.04.2023
Health workers Luke (Kenya), Juliana (Colombia), and Shishu (India) share the same hope for their patients with leishmaniasis: simple, oral treatments. For the first time ever, it seems leishmaniasis research is moving from neglect to a sense of hope.