Leishmaniose cutanée : un important problèmede santé
La leishmaniose cutanée est une maladie potentiellement grave et défigurante. Les personnes atteintes de leishmaniose cutanée ont une ou plusieurs lésions durables sur la peau, le plus souvent sans fièvre ni symptômes généraux. L'impac...t de la leishmaniose cutanée sur la propagation de la pauvreté est important, car le traitement est coûteux et donc inabordable ou implique une grande perte d’argent.
Le coût du traitement et de la mise en œuvre de stratégies de prévention nécessite un investissement considérable de ressources financières et humaines. La leishmaniose cutanée est un problème de santé publique majeur dans la Région de l'OMS pour la Méditerranée orientale. Des nouveaux cas apparaissent dans des zones précédemment indemnes de la maladie. Plus de 100 000 nouveaux cas de leishmaniose cutanée sont notifiés chaque année à l'OMS par les pays de la Région, mais les estimations relatives à l'incidence réelle sont de trois à cinq fois plus élevées car de nombreux patients ne consultent jamais un médecin ou un professionnel de santé et les cas ayant reçu un diagnostic de leishmaniose cutanée ne sont pas toujours notifiés aux autorités sanitaires.
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This publication represents a key step forward in translating Control of the leishmaniases (WHO Technical Report Series, No. 949) into a more practical tool for health personnel directly involved in the case management of cutaneous leishmaniasis. With this manual, countries will have, for the first ...time, standardized diagnosis and treatment protocols, case definitions and indicators to enable them to easily track progress on cutaneous leishmaniasis case management across the Region. It will provide support to professionals in charge of cutaneous leishmaniasis, in order to alleviate the suffering of affected populations from this appalling disfiguring and stigmatizing neglected tropical disease.
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Trypanosoma cruzi is the etiological agent of Chagas disease (CD), considered one of the most important parasitic infections in Latin America. Between 25 and 90 million humans are at infection risk via at least one of multiple infection mechanisms. Under natural conditions, the principal transmissio...n modes are transplacental or via one of more than 140 hematophagous triatomine bugs (Reduviidae: Triatominae). Triatomines acquire the parasite from mammal reservoirs due to their obligate blood-feeding (albeit triatomines can also feed on non-reservoir vertebrates such as birds and reptiles). The disease burden for CD in the Latin America and Caribbean region, based on disability-adjusted life-years (DALYs), is at least five times greater than that of malaria, and is approximately one-fifth that of HIV/AIDS. In recent decades, CD has extended to other continents outside natural reservoir or vector distributions due to human migration, with a minimum estimated 10 million individuals infected worldwide.
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Onchocerciasis used to be an important public health problem in Africa, with over 37 million people infected and millions suffering from debilitating skin disease, terrible itching, impaired vision and
blindness. But the epidemiological situation has improved dramatically over the last two decades.... Community directed treatment with ivermectin has effectively brought the disease under control in most endemic areas where onchocerciasis is no longer a public health risk.
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Despite a historical association with poor tolerability, a comprehensive review on safety of antileishmanial chemotherapies is lacking. We carried out an update of a previous systematic review of all published clinical trials in visceral leishmaniasis (VL) from 1980 to 2019 to document any reported ...serious adverse events (SAEs).
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Leptospirosis, a spirochaetal zoonosis, occurs in diverse epidemiological settings and affects vulnerable populations, such as rural subsistence farmers and urban slum dwellers. Although leptospirosis is a life-threatening disease and recognized as an important cause of pulmonary haemorrhage syndrom...e, the lack of global estimates for morbidity and mortality has contributed to its neglected disease status
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Snakebite is an acute life threatening time limiting medical emergency. It is a preventable public
health hazard often faced by rural population in tropical and subtropical countries with heavy
rainfall and humid climate.
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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Les présentes lignes directrices ont pour objet de préparer les pays d’endémie à arrêter l’AMM à l’issue du traitement, à passer à la surveillance post-thérapeutique ainsi qu’à confirmer l’interruption de la transmission à l’issue de la phase 2 et à débuter la surveillance p...ost-élimination.
Le but est de fournir un outil actualisé pour atteindre et vérifier l’élimination de la
transmission d’Ovolvulus à l’issue des programmes d’élimination de l’onchocercose qui utilisent principalement l’AMM.
Les objectifs sont de :
• formuler des recommandations basées sur des preuves à l’intention des prestataires de soins et des décideurs en matière de politique pour démontrer et confirmer l’interruption de la transmission d’O. volvulus avant, pendant et après la surveillance post-thérapeutique ;
• informer les utilisateurs finaux des procédures nécessaires pour vérifier l’élimination de l’onchocercose humaine.
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Snakebite envenoming affects millions of people worldwide annually and is a significant source of mortality. Preventing and treating the problem is complex and requires collaboration among the fields of public health, medicine, ecology, and laboratory science. After being removed from the category A... neglected tropical disease (NTD) list in 2013, snakebite envenoming was reinstated in 2017 in response to antivenom shortages and advocacy from researchers and international NGOs. In 2019, the World Health Organization (WHO) set a target to halve the number of deaths and cases of snakebite envenoming by 2030.
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The major neglected tropical diseases, Taenia solium taeniosis/cysticercosis and schistosomiasis caused by Schistosoma mansoni or S. haematobium are presumed to be widely distributed in Africa. Taenia solium taeniosis/ cysticercosis has been reported as an emerging disease in different regions of Af...rica [1, 2], but currently the exact distribution remains unclear. Reported prevalences of T. solium taeniosis and cysticercosis in African countries are not extensive and are further complicated by the lack of ‘gold standard’ tests for diagnosis.
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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 schistosomiasis
prevention and control. To this must b...e 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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Rabies is fatal, vaccine-preventable disease responsible for an estimated 59,000 human deaths each year. Most cases are transmitted by dogs, and most deaths occur in underserved populations in Africa and Asia. Approximately 40% of deaths occur in children.
The coronavirus disease (COVID-19) pandemic exacerbated pre-existing inequalities in the treatment and care of noncommunicable diseases (NCDs). This report examines the effect of the COVID-19 pandemic on access to NCD medicines, and the policies and strategies implemented by countries and health sys...tems to anticipate and mitigate stresses across NCD medicine supply chains. The full range of upstream and downstream impacts are investigated, including: manufacturing; procurement, importation and last mile delivery; patient-level effects through affordability and availability; and the effects on NCD medicine availability by category of disease. The report culminates in recommended actions and interventions for key stakeholders in the NCD pharmaceutical supply chain, including governments, regulatory authorities, manufacturers and the private sector; as well as directions for future research for improving access and supply chain access resilience.
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Report of a global meeting on yaws eradication surveillance, monitoring and evaluation: Geneva, 29–30 January 2018. World Health Organization.
Formation sur le suivi et l’évaluation épidémiologique du traitement médicamenteux de masse pour l’élimination de la filariose lymphatique : guide des apprenants. Organisation mondiale de la Santé.
En 1998, la Cinquante-et-Unième Assemblée mondiale de la Santé a adopté la résolution
WHA51.11 qui vise l’élimination mondiale du trachome en tant que problème de santé publique
à l’horizon 2020 (1). La stratégie recommandée pour atteindre cet objectif est récapitulée dans
le sig...le « CHANCE » qui signifie CHirurgie pour les personnes atteintes de trichiasis
trachomateux (TT – le dernier stade cécitant du trachome) ; Antibiothérapie, Nettoyage du
visage et Changements Environnementaux (2). Les interventions relatives aux volets A, N et CE
sont menées dans des districts entiers dans lesquels les cas de trachome évolutif
(inflammatoire) sont courants, dans le but de traiter les infections oculaires dues à Chlamydia
trachomatis, l’agent pathogène à l’origine du trachome, et de réduire durablement sa
transmission.
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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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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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