L’orthopoxvirus simien ou virus de la variole du singe (MPXV), est un virus à ADN double brin qui appartient au genre Orthopoxvirus de la famille
des Poxviridés. Les poxvirus causent des maladies chez l’espèce humaine et beaucoup d’autres animaux ; l’infection se manifeste généralement... par la formation de lésions, de nodules cutanés ou d’une éruption cutanée disséminée. Les autres espèces d’orthopoxvirus (OPXV) pathogènes pour l’être humain comprennent le virus de la variole bovine et le virus variolique (responsable de la variole, qui a été éradiquée). Le virus de la vaccine est également un OPXV qui a été utilisé pour la vaccination humaine, et a été un outil essentiel pour l’éradication de la variole, obtenue en 1980. Le MPXV doit son nom au fait qu’il a été identifié pour la première fois chez le singe. Le MPXV se retrouve principalement chez les rongeurs, mais son réservoir reste indéterminé. Il existe deux clades connus du MPXV, l’un endémique en Afrique de l’Ouest, et l’autre dans la région du bassin du Congo.
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5 April 2022, Addendum. This policy brief confirms WHO guidance and policy on injection safety in the context of the extraordinary increase in global injections resulting from COVID-19 immunization campaigns. It also calls attention to information on specialized syringes for COVID-19 vaccines and br...oad short-term and long-term solutions to address and alleviate supply shortages related to vaccine products with non-standard dose volumes.
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MEDBOX Issue Brief no.22, updated August 9, 2022
Supplement to: Guidance on vaccination and prevention of vaccine-preventable disease outbreaks for countries hosting refugees from Ukraine, April 2022 update
This document provides: • information on how to obtain vaccination documentation remotely (intended for refugees from Ukraine and intern...ally displaced persons (IDPs) in Ukraine who lack documentation of vaccination status for themselves or their children); • information on the types of vaccination documentation issued in Ukraine, and English translations of standard documents (intended for health care providers in refugee-host countries to facilitate assessment of vaccination status of refugees).
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Multiple countries are reporting severe acute cases of hepatitis of unknown aetiology in children, in several
regions of the world. WHO has developed this clinical case report form (CRF) to support and facilitate reporting
of anonymized, patient-level data of acute hepatitis of unknown aetiology.
Cryptococcal disease, particularly cryptococcal meningitis is a significant cause of morbidity and mortality among people living with HIV with advanced HIV disease. It is estimated that it is responsible for nearly 19% of AIDS-related mortality, second only to tuberculosis. Rapid screening, diagnosi...s and linking to appropriate treatment are critical actions national programs must take to reduce the burden of disease.
WHO in 2022 introduced updated guidelines for diagnosing, preventing, and managing cryptococcal disease among adults, adolescents and children living with HIV. This policy brief provides a summary of the key recommendations, clinical considerations, and also stresses the importance of ensuring access to life-saving antifungals. There is an urgent need for countries to scale-up management for not just cryptococcal meningitis, but address cryptococcal disease in the context of a package of care for advanced HIV disease as recommended by WHO.
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WHO has developed standardized health kits of medicines and medical supplies to meet different health needs in humanitarian emergencies and disasters.
These kits are developed to provide reliable and affordable medicines and supplies quickly to those in need. The kits are used by United Nations age...ncies, nongovernmental organizations and national governments.
Based primarily on WHO’s Essential Medicines list and guidelines on treatment of specific medical conditions, the contents of the kits are frequently reviewed and updated to adapt to changing needs based on experience in emergency situations.
A certain number of kits are prepositioned in strategic locations to be mobilized quickly in times of need. Long term agreements with suppliers are also in place to ensure rapid shipment wherever needed.
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Ce guide clinique et thérapeutique s’adresse aux professionnels de santé impliqués dans les soins curatifs au niveau des dispensaires et des hôpitaux. Nous avons essayé de répondre le plus simplement possible aux questions et problèmes auxquels est confronté le personnel de santé par des ...solutions pratiques, conciliant l’expérience acquise sur le terrain par Médecins Sans Frontières, les recommandations des organismes de référence tels que l’Organisation Mondiale de la Santé (OMS) et celles des ouvrages spécialisés en la matière.
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The position papers are intended for use by national public health officials and managers of immunization programmes. They may also be of interest to international funding agencies, vaccine advisory groups, vaccine manufacturers, health professionals, researchers, the scientific media and the genera...l public.
Les notes de synthèse s’adressent aux responsables nationaux de la santé publique et aux administrateurs des programmes de vaccination, mais elles peuvent également présenter un intérêt pour les organismes internationaux de financement, les groupes consultatifs sur la vaccination, les fabricants de vaccins, les professionnels de la santé, les chercheurs, les médias scientifiques et le grand public.
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This position paper on polio vaccines replaces the 2016 WHO position paper, and summarizes recent developments in the field.
All health workers deployed to measles outbreaks must complete the measles and rubella (MR) training to implement quality interventions and work safely and effectively in the field. This course provides the essential preparedness, detection, investigation, response, and recovery skills required to c...ontain the measles outbreak.
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This website was launched in January to advocate for the new WHO ORS/Zinc co-packaging recommendation (for diarrhoea treatment) and seek to remove barriers and exploit opportunities to the uptake of the recommendation in LMICs. As a part of this work we are establishing a knowledge base on the statu...s of ORS and Zinc around the world
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On 15–16 December 2020, WHO and the Medicines for Malaria Venture co-convened a technical consultation to consider the preferred product characteristics (PPCs) for drugs used in malaria chemoprevention. The main goal of the technical consultation was to agree on the most important PPCs for drugs t...o protect populations from malaria (chemoprevention), while considering relevant measures of efficacy and the safety data needed to support WHO policy recommendations.
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This guide also draws on the standard operating procedures (SOPs) to apply for measles outbreak response
support from the Measles & Rubella Initiative Outbreak Response Fund (17) and includes a section on
measles outbreak recovery so that contributing factors and potential root causes are identifi...ed and
addressed systematically after a measles outbreak. This guide does not aim to be a comprehensive guide
on measles elimination or routine immunization (RI) more broadly.
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Este documento proporciona una descripción general de las tendencias de la malaria en todas las regiones de la OMS, tal como figura en el Informe mundial sobre la malaria 2022.
Weekly Epidemiological Record No 9, 2022, 97, 61–80
This position paper supersedes the 2016 publication, “Malaria vaccine: WHO position paper-2016.”1 It includes the updated WHO recommendations on the wider use of the RTS,S/AS01 vaccine for the reduction of malaria morbidity and mortality in ...children living in areas of moderate to high malaria transmission. It also incorporates findings from the evaluation of the WHO-coordinated Malaria Vaccine Implementation Programme (MVIP), recommended by SAGE and MPAG in 2015, and from additional studies since 2015.
This paper does not include findings on vaccine efficacy in infants first vaccinated at 6–12 weeks of age. Because of the lower vaccine efficacy observed in this age category, WHO did not recommend pilot implementation or RTS,S/AS01 vaccine introduction for these young infants. Recommendations2 on the use of RTS,S/AS01 vaccine were discussed by SAGE and MPAG during a joint session in October 2021; evidence presented at the meeting can be accessed at https://terrance.who.int/mediacentre/data/ sage/SAGE_eYB_Oct2021.pdf
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The goal of the global outbreak response for monkeypox is to stop human-to-human transmission of monkeypox, with a priority focus on communities at high risk of exposure which may differ according to context, and to effectively use strong public health measures to prevent onward spread of the diseas...e. Judicious use of vaccines can support this response. This interim guidance, developed with the advice and support of the Strategic Advisory Group of Experts (SAGE) Working Group on smallpox and monkeypox vaccines, provides the first WHO recommendations on vaccines and immunization for monkeypox. Key points follow.
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This Tuberculosis guide has been developed jointly by Médecins Sans Frontières and Partners In Health. It aims at providing useful information to the clinicians and health staff for the comprehensive management of tuberculosis. Forms of susceptible and resistant tuberculosis, tuberculosis in child...ren, and HIV co-infection are all fully addressed.
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