La forte augmentation des taux de surpoids et d’obésité1 constitue une menace pour la santé de milliards
de personnes dans le monde. En 2016, plus de 1,9 milliard d’adultes âgés de 18 ans ou plus étaient en surpoid
WHO has published the first-ever guidance on the clinical management of diphtheria. The only previously available guidance was an operational protocol. The new guidance followed the rigorous process for developing guidance at WHO.
It addresses the use of Diphtheria Antitoxin (DAT) in the treatmen...t of diphtheria. There is a worldwide shortage of DAT and evidence based recommendations on the use of DAT were requested by many Member States.
The guidance also includes new recommendations on antibiotics. In patients with suspected or confirmed diphtheria, WHO recommends using macrolide antibiotics (azithromycin, erythromycin) rather than penicillin antibiotics.
This clinical practice guideline has been rapidly developed recognizing the global increase in diphtheria outbreaks. Outbreaks of diphtheria in Nigeria, Guinea and neighbouring countries in 2023 have highlighted the urgent need for evidence-based clinical practice guidelines for the treatment of diphtheria. Given the sporadic nature of outbreaks, many clinicians in the affected regions have never managed acute diphtheria and its related complications. Diphtheria remains a neglected disease and vaccination is the top priority. At the same time, for patients with diphtheria, access to antibiotics, DAT and supportive care can be lifesaving.
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Diphtheria is caused by Corynebacterium species, mostly by toxin-producing Corynebacterium diphtheriae and rarely by toxin-producing strains of C. ulcerans and C. pseudotuberculosis. The most common type of diphtheria is classic respiratory diphtheria, whereby the exotoxin produced characteristicall...y causes the formation of a pseudomembrane in the upper respiratory tract and damages other organs, usually the myocardium and peripheral nerves. Acute respiratory obstruction, acute systemic toxicity, myocarditis and neurologic complications are the usual causes of death. The infection can also affect the skin (cutaneous diphtheria). More rarely, it can affect mucous membranes at other non-respiratory sites, such as genitalia and conjunctiva.
C. diphtheriae is transmitted from person to person by intimate respiratory and direct contact; in contrast, C. ulcerans and C. pseudotuberculosis are zoonotic infections, not transmitted person-to-person. The incubation period of C. diphtheriae is two to five days (range 1– 10 days). A person is infectious as long as virulent bacteria are present in respiratory secretions, usually two weeks without antibiotics, and seldom more than six weeks. In rare cases, chronic carriers may shed organisms for six months or more. Skin lesions are often chronic and infectious for longer periods. Effective antibiotic therapy (penicillin or erythromycin) promptly terminates shedding in about one or two days.
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Small drinking-water supplies commonly experience operational, managerial, technical and resourcing challenges that impact their ability to deliver safe and reliable services. The needs and opportunities associated with these supplies therefore warrant explicit consideration in policies and regulati...ons.
These Guidelines, specifically tailored to small water supplies, build on over 60 years of guidance by the World Health Organization (WHO) on drinking-water quality and safety. They focus on establishing drinking-water quality regulations and standards that are health based and context appropriate; on proactively managing risks through water safety planning and sanitary inspections; and on carrying out independent surveillance. The guidance is intended primarily for decision-makers at national and subnational levels with responsibility for developing regulatory frameworks and support programmes related to these activities. Other stakeholders involved in water service provision will also benefit from the guidance in this document.
Designed to be practical and accessible, these Guidelines offer clear guidance that is rooted in the principle of progressive improvement. State-of-the-art recommendations and implementation guidance are provided, drawn from a comprehensive evidence review and established good practices. Additionally, case examples are provided from countries and areas around the world to demonstrate how the guidance in this publication has been implemented in practice in a wide variety of contexts.
Together with WHO’s 2024 Sanitary inspection packages – a supporting tool for the Guidelines for drinking-water quality: small water supplies, these Guidelines update and supersede WHO’s 1997 Guidelines for drinking-water quality. Volume 3: surveillance and control of community supplies. Key changes to this updated publication include a greater focus on preventive risk management and a broader range of small water supplies covered, including those managed by households, communities and professional entities.
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The Guidelines for drinking-water quality: small water supplies have been developed to address the needs and opportunities associated with small supplies to facilitate progressive improvement towards safe and sustainable drinking-water services for all. These Guidelines are based on the principal re...commendation in the World Health Organization’s Guidelines for drinking-water quality, and they provide guidance on applying that recommendation to small water supplies in particular. These Guidelines aim to help governments and practitioners improve the safety of drinking-water delivered through small supplies.
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Ces Directives sur la qualité de l’eau de boisson : petits approvisionnements en eau ont été élaborées pour aborder les besoins et les possibilités associés aux petits approvisionnements afin de favoriser l’amélioration progressive vers des services d’alimentation en eau de boisson sû...rs et durables pour tous. Ces directives se fondent sur la principale recommandation des Directives de qualité pour l’eau de boisson de l’Organisation mondiale de la santé ; elles visent à fournir des orientations concernant l’application de cette recommandation aux petits approvisionnements en eau en particulier. Ces directives visent à aider les gouvernements et les praticiens à améliorer la sécurité sanitaire de l’eau de boisson fournie par de petits approvisionnements.
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Las Guías para la calidad del agua de consumo humano: pequeños sistemas de abastecimiento de agua se han elaborado para tratar las necesidades y oportunidades asociadas a los pequeños sistemas de abastecimiento, con el fin de facilitar la mejora progresiva hacia unos servicios seguros y sostenibl...es de agua de consumo humano para todas las personas. Estas Guías se basan en la recomendación principal de las Guías para la calidad del agua de consumo humano de la Organización Mundial de la Salud, y proporcionan orientación sobre la aplicación de esas recomendaciones a los pequeños sistemas de abastecimiento de agua en particular. El objetivo de estas Guías consiste en ayudar a los gobiernos y a los profesionales a mejorar la seguridad del agua de consumo humano suministrada a través de pequeños sistemas de abastecimiento.
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Настоящее «Руководство по обеспечению качества питьевой воды: маломасштабные системы водоснабжения» было разработано для удовлетворения потребностей и использ...вания возможностей, связанных с маломасштабными системами водоснабжения, в целях содействия постоянному совершенствованию системы устойчивого снабжения всего населения безопасной питьевой водой. Настоящее Руководство основано на главной рекомендации Руководства по обеспечению качества питьевой воды Всемирной организации здравоохранения и содержит руководящие указания в отношении выполнения этой рекомендации, в частности применительно к маломасштабным системам водоснабжения. Настоящее Руководство призвано помочь правительствам и отрасли повысить безопасность питьевой воды, доставляемой маломасштабными системами водоснабжения.
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وقد وُضعت هذه الإرشادات المعنونة "إرشادات بشأن مياه الشرب: إمدادات المياه الصغيرة" لتناول الاحتياجات والفرص المرتبطة
بإمدادات المياه الصغيرة وتيسير التحسين التد...ريجي نحو خدمات مياه شرب آمنة ومستدامة للجميع.
تستند هذه الإرشادات إلى التوصية الرئيسية الواردة في إرشادات منظمة الصحة العالمية بشأن جودة مياه الشرب وتوفّر إرشادات حول تطبيق هذه التوصية على إمدادات المياه صغيرة الحجم على وجه الخصوص.
تهدف هذه الإرشادات إلى مساعدة الحكومات والممارسين على تحسين سلامة مياه الشرب المقدمة من خلال الإمدادات الصغيرة.
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Through technical consultations with countries and partners, WHO has led the development of Preparedness and Resilience for Emerging Threats Module 1: Planning for respiratory pathogen pandemics. Version 1.0. The Module, currently available as an advanced draft, builds on previous pandemic lessons a...nd guidance, and has the following new elements:
It presents an integrated and efficient respiratory pathogen pandemic planning approach covering both novel pathogens and those known to have pandemic potential;
It enables coherence in addressing pathogen-agnostic and pathogen-specific elements for better preparedness;
It gives an organizing framework including operational stages and triggers for escalation and de-escalation between pandemic preparedness and response periods;
It contextualizes 12 IHR (2005) core capacities within the five components of health emergency preparedness, response and resilience (HEPR), from the respiratory threats perspective; and
It describes the critical sectors for respiratory pathogen pandemic preparedness to trigger multisectoral collaboration.
WHO will finalize and publish this Module after a global technical meeting that will be held on 24-26 April 2023.
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Africa CDC Institute of Pathogen Genomics (IPG) was launched in November 2019 and operates under the Division of Laboratory Systems and Networks.
IPG coordinate the implementation of molecular diagnostics, pathogen genomics and bioinformatics in National Public Health Institutions (NPHIs) and/or Re...fe-
-rence Laboratories (NRLs) across Africa.
Africa CDC and APHF are coordinating a continental initiative to maximize the benefits of molecular approaches and pathogen genomics for more effective
outbreak preparedness, prevention, response, and for the control and elimination of endemic diseases in Africa. One of Africa CDC’s flagship initiative is the Africa
Pathogen Genomics Initiative (Africa PGI), a partnership that aims to strengthen laboratory systems and enhance genomic surveillance by equipping the continent’s
public health institutions with the tools, training, and data infrastructure.
About the Project
In 2023, 166 outbreaks and public health events were reported in Africa. This calls for a resilient laboratory systems for timely detection and reporting of current and future outbreaks. This project aims to scale up molecular diagnostic and genomic sequencing-based detection and characterization of outbreaks.
Africa CDC is working with Member States to develop guidance, diagnostic algorithm, training and capacity building to enable outbreak detection, and reporting to inform public health response.
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At the global, national, and regional levels, there are several guidelines and guides regarding the preparedness, prevention, surveillance, and control of diseases caused by respiratory viruses; most initiatives focus on specific virus events or cases. During the coronavirus disease 2019 (COVID-19) ...pandemic, it has been found that even when there are strategies designed and planned for pandemics, it is necessary to strengthen and improve them. Planning for imminent threats, including those posed by respiratory viruses, contributes to strengthening the core capacities of the International Health Regulations (IHR [2005])
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Ahead of World Malaria Day, the WHO Global Malaria Programme published a new operational strategy outlining its priorities and key activities up to 2030 to help change the trajectory of malaria trends, with a view to achieving the global malaria targets. The strategy outlines 4 strategic objectives ...where WHO will focus its efforts, including developing norms and standards, introducing new tools and innovation, promoting strategic information for impact, and providing technical leadership of the global malaria response.
In recent years, progress towards critical targets of the WHO Global technical strategy for malaria 2016-2030 has stalled, particularly in countries that carry a high burden of the disease. In 2022 there were an estimated 608 000 malaria-related deaths and 249 million new malaria cases globally, with young children in Africa bearing the brunt of the disease.
Millions of people continue to miss out on the services they need to prevent, detect, and treat malaria. Additionally, progress in global malaria control has been hampered by resource constraints, humanitarian crises, climate change and biological threats such as drug and insecticide resistance.
“A shift in the global malaria response is urgently needed across the entire malaria ecosystem to prevent avoidable deaths and achieve the targets of the WHO global malaria strategy,” notes Dr Daniel Ngamije, Director of the Global Malaria Programme. “This shift should seek to address the root causes of the disease and be centred around accessibility, efficiency, sustainability, equity and integration.”
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Unmet mental health needs in the Region of the Americas are a leading source of morbidity and mortality, which result in tremendous health, social, and economic consequences. The COVID-19 pandemic has exacerbated the mental health crisis in the Region, necessitating urgent action at the highest leve...ls of government and across sectors to build back better mental health now and for the future. This landmark report is the result of the PAHO High-Level Commission on Mental Health and COVID-19. It provides an analysis of the mental health situation in the Region, followed by a series of recommendations and corresponding actions to support countries in the Americas to prioritize and advance mental health using human rights- and equity-based approaches.
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Las necesidades de salud mental insatisfechas en la Región de las Américas son una de las principales causas de morbimortalidad, y tienen enormes consecuencias sociales, económicas y para la salud. La pandemia de COVID-19 ha exacerbado la crisis de la salud mental en la Región, por lo que se nec...esita una acción urgente en los niveles más altos del gobierno y en todos los sectores con el propósito de reconstruir para mejorar los sistemas y servicios de salud mental ahora y en el futuro. En este histórico informe, elaborado por la Comisión de Alto Nivel de la OPS sobre Salud Mental y COVID-19, se presenta un análisis de la situación de la salud mental en las Américas, seguido de una serie de recomendaciones y sus puntos de acción correspondientes, a fin de ayudar a los países a priorizar y promover la salud mental con enfoques basados en los derechos humanos y la equidad.
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Since 2016, the Pan American Health Organization (PAHO) has been promoting the implementation of the HEARTS Initiative in the Americas as a regional adaptation of the World Health Organization's Global HEARTS Initiative. During this time, 33 countries in the Region of the Americas have committed to ...implementing HEARTS, and PAHO has developed many technical resources to support them. Most of these resources are clinical tools for primary healthcare teams and focus on quality improvement. This compendium aims to group all these clinical tools in a single document under a simple format that facilitates their practical implementation in daily clinical practice. The reader will notice that each tool is summarized on a single page and presented in a modular format. Therefore, each tool can be used together or separately as needed. In addition, at the bottom of each tool, the reader will find the references and hyperlinks to access full texts in case deeper knowledge is required.
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Desde el 2016, la Organización Panamericana de la Salud (OPS) ha promovido la implementación de la Iniciativa HEARTS en las Américas, una adaptación regional de la estrategia Global HEARTS de la Organización Mundial de la Salud (OMS). Durante este tiempo, 33 países de la Región de las Améric...as se han comprometido a implementar HEARTS y la OPS ha desarrollado una amplia variedad de herramientas clínicas para asistir a los equipos de salud en su trabajo cotidiano e impulsarlos a buscar la mejora continua de la calidad. Este compendio pretende presentar en un solo documento, y de manera simple y didáctica, todos los recursos técnicos desarrollados por la Iniciativa HEARTS en las Américas para facilitar su implementación en la práctica diaria del ámbito clínico. El lector notará que cada herramienta se detalla en una sola página y se presenta en un formato modular. Por lo tanto, cada herramienta se puede utilizar en conjunto o por separado según sea necesario. Además, en la parte inferior de cada herramienta, el lector encontrará las referencias y los enlaces para acceder a los textos completos en caso de que los usuarios deseen profundizar más su conocimiento respecto a cada tema.
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Smallpox eradication was certified in 1980. Mpox has been endemic in Central and West African countries since it was first detected in 1958 . It is a zoonosis; cases are often found close to tropical rainforests where various animals carry the orthopoxvirus that causes the disease. In endemic countr...ies, most mpox infections in humans result from a primary animal-to-human transmission. Human-to-human transmission can result from close contact with respiratory secretions, skin lesions of an infected person, or recently contaminated objects. Transmission can also occur via the placenta from mother to fetus or through close contact during and after birth.
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A erradicação da varíola humana (mpox em inglês) foi certificada em 1980. A varíola símia (mpox em inglês) é endêmica nos países da África Central e Ocidental desde a sua primeira detecção, em 1958. Trata-se de uma zoonose cujos casos geralmente ocorrem perto de florestas tropicais, ond...e diversos animais são portadores do ortopoxvírus causador da doença. A maioria das infecções em seres humanos pelo vírus da varíola símia em países onde a doença é endêmica é resultado de transmissão primária de animais para humanos. A transmissão de pessoa a pessoa pode ocorrer por meio de contato próximo com secreções respiratórias ou lesões cutâneas de uma pessoa infectada ou com objetos recém-contaminados. A transmissão também pode ocorrer através da placenta da mãe para o feto ou por contato direto durante ou após o parto. Até 21 de maio de 2022, 12 países onde não há varíola símia endêmica, em 2 regiões da Organização Mundial da Saúde (OMS), haviam notificado 92 casos confirmados da doença. Até 26 de agosto de 2022, 96 países sem endemicidade, de todas as 6 regiões da OMS, haviam notificado 45.198 casos confirmados de varíola símia, incluindo 6 óbitos. No mesmo período, os países onde a doença é endêmica notificaram 350 casos confirmados e 6 óbitos. Na Região das Américas, 29 países e territórios notificaram 23.479 (48%) casos confirmados e 3 óbitos. Diversos estudos observacionais sobre as vacinas de primeira geração demonstraram que a eficácia da vacinação contra a varíola humana na prevenção da varíola símia é de aproximadamente 85%. Atualmente, as vacinas originais (de primeira geração) contra a varíola humana não estão mais disponíveis.
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El 23 de julio del 2022, el Director General de la OMS declaró el brote de viruela símica una emergencia de salud pública de importancia internacional. A raíz de esa declaración, se puso en marcha un dispositivo de respuesta coordinada con el objeto de interrumpir la transmisión y proteger a l...os grupos en situación de vulnerabilidad. En estas orientaciones se tratan diferentes aspectos relativos al uso de vacunas para respaldar las intervenciones primarias de salud púbica en la respuesta para detener la trasmisión de persona a persona. Tienen como propósito brindar información útil y accesible acerca de las vacunas contra la viruela símica a fin de facilitar el despliegue de estrategias de prevención adaptadas a la situación epidemiológica, con base en las recomendaciones de la VIII Reunión ad hoc del Grupo Técnico Asesor de la OPS sobre Enfermedades Prevenibles por Vacunación.
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