Soil transmitted helminth (STH) infections are among the most common human infections worldwide with over 1 billion people affected. Many estimates of STH infection are often based on school-aged children (SAC). This study produced predictive risk-maps of STH on a more finite scale, estimated the nu...mber of people infected, and the amount of drug required for preventive chemotherapy (PC) in Ogun state, Nigeria. Georeferenced STH infection data obtained from a cross-sectional survey at 33 locations between July 2016 and November 2018, together with remotely-sensed environmental and socio-economic data were analyzed using Bayesian geostatistical modelling. Stepwise variable selection procedure was employed to select a parsimonious set of predictors to predict risk and spatial distribution of STH infections. The number of persons (pre-school ages children, SAC and adults) infected with STH were estimated, with the amount of tablets needed for preventive chemotherapy. An overall prevalence of 17.2% (95% CI 14.9, 19.5) was recorded for any STH infection. Ascaris lumbricoides infections was the most predominant, with an overall prevalence of 13.6% (95% CI 11.5, 15.7), while Hookworm and Trichuris trichiura had overall prevalence of 4.6% (95% CI 3.3, 5.9) and 1.7% (95% CI 0.9, 2.4), respectively. The model-based prevalence predictions ranged from 5.0 to 23.8% for Ascaris lumbricoides, from 2.0 to 14.5% for hookworms, and from 0.1 to 5.7% for Trichuris trichiura across the implementation units. The predictive maps revealed a spatial pattern of high risk in the central, western and on the border of Republic of Benin. The model identified soil pH, soil moisture and elevation as the main predictors of infection for A. lumbricoides, Hookworms and T. trichiura respectively. About 50% (10/20) of the implementation units require biannual rounds of mass drug administration. Approximately, a total of 1.1 million persons were infected and require 7.8 million doses. However, a sub-total of 375,374 SAC were estimated to be infected, requiring 2.7 million doses. Our predictive risk maps and estimated PC needs provide useful information for the elimination of STH, either for resource acquisition or identifying priority areas for delivery of interventions in Ogun State, Nigeria.
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Leishmaniasis is a vector-borne tropical/subtropical disease caused by an intracellular parasite transmitted to humans by sand fly bite. It is endemic in Asia, Africa, the Americas, and the Mediterranean region. Worldwide reports include 1.5–2 million new cases each year, more than 300 million at ...risk of acquiring the disease, and 70,000 deaths per year. Clinical features depend on the Leishmania species and immune response of the host, varying from localized cutaneous disease to visceral form with potentially fatal outcome; however, the common presentation is either cutaneous, mucocutaneous, or visceral leishmaniasis. Many therapeutic agents are being used in Leishmania treatment, but the only effective treatment is achieved with current pentavalent antimonials. WHO considers Leishmaniasis as one of the “Neglected Tropical Diseases” that continues to be prevalent despite international, national, and local efforts towards its control and elimination over the last decade. This chapter reviews the global perspective of Leishmaniasis with increasing recognition of emerging “Atypical forms” and new surge of disease across the world mainly due to increasing conflicts in endemic areas leading to forced migration among other causes. All these challenges related to environment, disease, and vector pose major implications on WHO’s leishmaniasis control and elimination plan.
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Le Plan de Suivi et Évaluation du Plan Stratégique National de Lutte contre le Paludisme 2023–2026 est un document élaboré par le Ministère de la Santé et de l’Hygiène Publique du Togo, à travers le Programme National de Lutte contre le Paludisme (PNLP), en décembre 2023. Il sert de cad...re de référence pour suivre, évaluer et améliorer la mise en œuvre des interventions de lutte contre le paludisme au Togo.
Ce plan accompagne le Plan Stratégique National (PSN) 2023–2026 et vise à réduire de 65 % l'incidence et la mortalité du paludisme par rapport à 2022, en s’alignant sur les objectifs de la stratégie technique mondiale de l’OMS. Il précise les objectifs, les résultats attendus, les indicateurs de performance ainsi que les mécanismes de collecte, d’analyse et de dissémination des données sanitaires.
Le document détaille également les responsabilités des acteurs impliqués à tous les niveaux du système de santé (central, régional, périphérique), les outils à utiliser, ainsi que le budget prévu pour la période. Il insiste sur la digitalisation des campagnes (MID, CPS), la formation du personnel, la qualité des données et l'intégration des ONG, du secteur privé et de la médecine traditionnelle dans la lutte contre le paludisme.
Ce plan vise à garantir une prise de décision basée sur des données fiables, à améliorer la coordination nationale et à mobiliser efficacement les ressources pour atteindre les objectifs d’élimination du paludisme d’ici 2030.
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Este manual ofrece directrices prácticas para el manejo adecuado de las pruebas de diagnóstico rápido (PDR) de la malaria, destinadas al personal que trabaja en almacenes centrales, regionales y periféricos del sistema de salud. Su propósito principal es garantizar la integridad y eficacia de e...stas pruebas desde su recepción hasta su uso final.
Se destacan aspectos clave como la correcta recepción e inspección visual de los envíos, la verificación de daños, caducidad y componentes faltantes. Se proporcionan recomendaciones detalladas para el almacenamiento, incluyendo el control riguroso de la temperatura (idealmente entre 2 °C y 30 °C), la ventilación de los espacios, y el apilamiento seguro de las cajas.
Además, el manual aborda la gestión de inventarios con el uso de tarjetas de control, la rotación de productos bajo el principio “primero en caducar, primero en salir” (PEPS), y la realización de inventarios físicos regulares. También se detallan las buenas prácticas para el transporte por tierra, aire y agua, subrayando la importancia de proteger las pruebas del calor y de planificar bien los envíos.
Por último, se abordan medidas para la correcta gestión de residuos generados por las PDR, diferenciando entre desechos peligrosos (como lancetas, dispositivos usados y guantes contaminados) y desechos generales. Se incluyen recomendaciones para su separación, almacenamiento temporal y eliminación segura, adaptadas a contextos con recursos limitados.
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Este manual está dirigido al personal de salud que trabaja en establecimientos periféricos y que utiliza pruebas de diagnóstico rápido (PDR) para la malaria. Proporciona instrucciones prácticas para garantizar el buen funcionamiento de estas pruebas en condiciones muchas veces difíciles, espec...ialmente en zonas remotas y de clima cálido.
Se explican procedimientos clave para la recepción de las pruebas (verificación de daños, caducidad, condiciones de transporte), el almacenamiento (selección del lugar más fresco, control de temperatura, ventilación, uso de métodos sencillos como depósitos en el suelo o contenedores que enfrían por evaporación) y el transporte seguro, ya sea por tierra o agua, con especial atención a evitar la exposición al calor.
Además, el manual incluye pautas para la gestión de inventarios, la rotación de existencias (usando primero las pruebas con vencimiento más próximo), y el registro del uso para evitar desperdicios y asegurar la disponibilidad continua.
Finalmente, se aborda la gestión de desechos peligrosos y generales generados por el uso de las pruebas, promoviendo su separación adecuada, almacenamiento seguro y eliminación apropiada (como fosas protegidas o incineración controlada), con el fin de proteger al personal y a la comunidad.
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Lymphatic filariasis (LF) is a preventable neglected tropical disease (NTD) caused by infection with the filarial parasites Wuchereria bancrofti, Brugia malayi or B. timori. Mosquitos in the genera Culex, Anopheles, Mansonia and Aedes transmit the parasites from person to person. Lymphoedema and hyd...rocoele are the visible, chronic clinical consequences of the impairment of lymphatic vessels caused by infection with these parasites. WHO established the Global Programme to Eliminate Lymphatic Filariasis (GPELF) to stop transmission of infection by mass drug administration (MDA) of anthelminthics and to alleviate the suffering of people affected by the disease through morbidity management and disability prevention (MMDP). Since the start of GPELF, the number of infections has been reduced by 74% globally. The latest estimate is that 51.4 million people are infected.
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Technical document, update 2021
The EYE strategy is a comprehensive and long-term strategy built on lessons learned that aims at ending yellow fever epidemics by 2026, and consists of three strategic objectives:
protect at-risk populations;
prevent international spread; and
contain outbreaks rapidly.
An estimated 59 000 people die from rabies each year. That’s one person every nine minutes of every day, 40% of whom are children living in Asia and Africa. As dog bites cause almost all human cases, we can prevent rabies deaths by increasing awareness, vaccinating dogs to prevent the disease at i...ts source and administering life-saving treatment after people have been bitten. We have the vaccines, medicines, tools and technologies to prevent people from dying from dog-mediated rabies. For a relatively low cost it is possible to break the disease cycle and save lives
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This updated version, endorsed by the World Health Assembly in May 2021 through resolution WHA74.9, reflects lessons learned in the global malaria response over the last 5 years. While the milestones and targets remain the same, the approaches to tackling the disease, in some areas, have evolved to ...keep pace with the changing malaria landscape.
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Trachoma causes more vision loss and blindness than any other infection in the world. This disease is caused by Chlamydia trachomatis bacteria. Other variants or strains of these bacteria can cause a sexually transmitted infection (chlamydia) and disease in lymph nodes.
This is photomicrograph ...of a conjunctival smear that revealed the presence of what are known as, intracytoplasmic inclusions Trachoma is easily spread through direct personal contact such as from fingers, through shared towels and clothes, and through flies that have been in contact with the eyes or nose of an infected person. When left untreated, repeated Chlamydia trachomatis infections in the eye can cause severe scarring on the inside of the eyelid. This can cause the eyelashes to scratch the cornea (trichiasis). In addition to causing pain, trichiasis permanently damages the cornea and can lead to irreversible blindness.
Chlamydia trachomatis infections spread in areas that lack access to safely managed drinking water and sanitation systems. Trachoma affects the most resource-limited communities in the world. Globally, almost 1.9 million people have vision loss because of trachoma, and it causes 1.4% of all blindness worldwide.1 In 2021, 136 million people lived in trachoma-endemic areas and were at risk of trachoma blindness.
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Summary of new viruses this week: Afghanistan –five wild poliovirus type 1 (WPV1) positive environmental samples. Pakistan –one WPV1 positive environmental sample. Papua New Guinea – three cases of circulating vaccine-derived poliovirus type 1 (cVDPV1). DRC- one case of circulating vaccine-der...ived poliovirus type 2 (cVDPV2). Nigeria – two cases of cVDPV2. Somalia- two cVDPV2 positive environmental samples. See country sections below for more details.
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Cette version actualisée, approuvée par l'Assemblée mondiale de la santé en mai 2021 par la résolution WHA74.9, reflète les enseignements tirés de la lutte mondiale contre le paludisme au cours des cinq dernières années. Si les étapes et les objectifs restent les mêmes, les approches de l...a lutte contre la maladie, dans certains domaines, ont évolué pour suivre le rythme de l'évolution du paysage du paludisme.
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