Document d’information scientifique
24 avril 2020
Le développement d’une immunité face à un agent pathogène à la suite d’une infection naturelle comporte plusieurs étapes et prend généralement une à deux semaines. Une infection virale entraîne immédiatement une réponse immunit...aire innée, non spécifique, au cours de laquelle les macrophages, les neutrophiles et les cellules dendritiques ralentissent la progression du virus et peuvent même éviter l’apparition de symptômes. Cette réponse non spécifique est suivie d’une réponse adaptative, au cours de laquelle l’organisme produit des anticorps qui se lient spécifiquement au virus. Ces anticorps sont des protéines appelées immunoglobulines. L’organisme produit également des lymphocytes T qui reconnaissent et éliminent les cellules infectées par le virus. Cette réponse adaptative permet parfois d’éliminer le virus de l’organisme et, si elle est suffisamment forte, d’éviter l’aggravation de la maladie ou la réinfection par le même virus. Ce processus est souvent mesuré par la présence d’anticorps dans le sang.
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This module is part of the WHO series The Immunological Basis for Immunization, which was initially developed in 1993 as a set of eight modules, comprising one module on general immunology and seven modules each devoted to one of the vaccines recommended for the Expanded Programme on Immunization, i....e. vaccines against diphtheria, measles, pertussis, polio, tetanus, tuberculosis and yellow fever. Since then, this series has been updated and extended to include other vaccines of international importance. The main purpose of the modules is to provide national immunization managers and vaccination professionals with an overview of the scientific basis of vaccination against a range of important infectious diseases. The modules developed since 1993 continue to be vaccine-specific, reflecting the biological differences in immune responses to the individual pathogens and the differing strategies employed to create the best possible level of protection that can be provided by vaccination. The modules also serve as a record of the immunological basis for the WHO recommendations on vaccine use, published in the WHO vaccine position papers.*
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English Analysis on World about Agriculture, Climate Change and Environment and more; published on 29 Sep 2021 by FAO and NEPAD
A key component of elimination is to reduce the number
of unmanaged trachomatous trichiasis cases to less than
1 per 1,000 population in affected areas. This will require
not only a large increase in the number of surgeries
performed, but also improvements in the quality of surgery
and in the e...fficiency of surgery provision programs. It also
will require that we make special efforts to reach out to
women and the most marginalized populations, who are
disproportionally affected by trichiasis (TT).
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Refugee children with disabilities experience a reality of exclusion and marginalisation that makes them among the most vulnerable displaced persons in the world. Excluded from participation in social activities and access to school, not only because of their disability, but especially because of so...cial, cultural, and political barriers that prevent them from enjoying the same opportunities as their peers.
Daniela Bruni, a specialist in education in emergency contexts, who has overseen JRS’s related projects for the past two years, has developed a guide on inclusive education.
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SIAPS Technical Report. This report summarizes key accomplishments and lessons learned in implementing SIAPS’ approach to improving IPC practices in four countries: South Africa, Namibia, Jordan, and Ethiopia. All activities address SIAPS’s overall objective to build or enhance national and faci...lity capacity to develop, implement, and monitor IPC programs by focusing on the principles of health systems strengthening.
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This report details the challenges many women and girls with disabilities face throughout the justice process: reporting abuse to the police, obtaining appropriate medical care, having complaints investigated, navigating the court system, and getting adequate compensation.
This handbook has been compiled as a source of ideas and experiences that can be used for CLTS orientation workshops, advocacy to stakeholders, training facilitators and natural leaders and implementing CLTS activities. It is a resource book especially for field staff, facilitators and trainers for ...planning, implementation and follow-up for CLTS.
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A summary of the national drug situation
Massoda Tonye et al. Malar J (2018) 17:156
https://doi.org/10.1186/s12936-018-2284-7
Background: In 2011, the demographic and health survey (DHS) in Cameroon was combined with the multiple indicator
cluster survey. Malaria parasitological data were collected, but the survey period did not overl...ap with the high
malaria transmission season. A malaria indicator survey (MIS) was also conducted during the same year, within the
malaria peak transmission season. This study compares estimates of the geographical distribution of malaria parasite
risk and of the effects of interventions obtained from the DHS and MIS survey data.
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The 'asks' have been prepared for private businesses to take concrete actions in the COVID19 pandemic.
Many of the countries that faced cholera outbreaks in 2022 were badly affected by extreme weather events.
As the climate emergency worsens, human displacement will intensify, along with droughts and flooding – all
conditions that give rise to cholera outbreaks. Unless we invest in systems that b...uild preparedness and
resilience among at-risk populations, the cholera burden will continue to rise
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To understand the national situation, Ethiopia did a situation assessment, launched its first strategy in 2011, and took action to contain AMR, as detailed in the blue boxes found throughout this strategy. This updated version of the strategy was in response to the revised health and medicines polic...ies, health sector transformation plan, and the resolutions of the 68th World Health Assembly
of May 2015 and so that Ethiopia’s efforts could be coordinated with global initiatives in the prevention and containment of AMR.
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Across Zimbabwe, 7 million people in urban and rural areas are in urgent need of humanitarian assistance, compared to 5.5 million in August 2019. Since the launch of the Revised Humanitarian Appeal in August 2019, circumstances for millions of Zimbabweans have worsened. Drought and crop failure, exa...cerbated by macro-economic challenges and austerity measures, have directly affected vulnerable households in both rural and urban communities. Inflation continues to erode purchasing power and affordability of food and other essential goods is a daily challenge. The delivery of health care, clean water and sanitation, and education has been constrained and millions of people are facing challenges to access vital services.
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