Научная справка
24 апреля 2020 г.
При инфицировании в естественных условиях выработка иммунитета к патогенному микроорганизму проходит в несколько этапов и заним
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ет от 1 до 2 недель. При вирусной инфекции врожденный иммунитет обеспечивает немедленную реакцию организма, которая заключается в активации неспецифического иммунного ответа, приводящего к замедлению инфекционного процесса макрофагами, нейтрофилами и дендритными клетками, и которая в ряде случаев обусловливает бессимптомное течение инфекции. Затем происходит активация адаптивного иммунного ответа, при котором в организме начинается выработка специфических антител, способных к связыванию с вирусными частицами. Данные антитела являются белками и носят название иммуноглобулинов. Кроме того, в организме образуются Т-клетки, способные распознавать и уничтожать другие клетки, пораженные вирусом. Это звено иммунитета носит название клеточного. Функционирование нескольких звеньев иммунитета при адаптивном ответе может способствовать элиминации вируса из организма, а при достаточной активности реакции – препятствовать переходу заболевания в тяжелую форму и повторному заражению той же инфекцией. Количественной мерой данного процесса является уровень антител в крови.
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The majority of Countdown countries did not reach the fourth Millennium Development Goal (MDG 4) on reducing child mortality, despite the fact that donor funding to the health sector has drastically increased. When tracking aid invested in child survival, previous studies have exclusively focused on
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aid targeting reproductive, maternal, newborn, and child health (RMNCH). We take a multi-sectoral approach and extend the estimation to the four sectors that determine child survival: health (RMNCH and non-RMNCH), education, water and sanitation, and food and humanitarian assistance (Food/HA). Methods and findings: Using donor reported data, obtained mainly from the OECD Creditor Reporting System and Development Assistance Committee, we tracked the level and trends of aid (in grants or loans) disbursed to each of the four sectors at the global, regional, and country levels. We performed detailed analyses on missing data and conducted imputation with various methods. To identify aid projects for RMNCH, we developed an identification strategy that combined keyword searches and manual coding. To quantify aid for RMNCH in projects with multiple purposes, we adopted an integrated approach and produced the lower and upper bounds of estimates for RMNCH, so as to avoid making assumptions or using weak evidence for allocation. We checked the sensitivity of trends to the estimation methods and compared our estimates to that produced by other studies. Our study yielded time-series and recipient-specific annual estimates of aid disbursed to each sector, as well as their lower- and upper-bounds in 134 countries between 2000 and 2014, with a specific focus on Countdown countries. We found that the upper-bound estimates of total aid disbursed to the four sectors in 134 countries rose from US$ 22.62 billion in 2000 to US$ 59.29 billion in
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The core of the strategy is the goal for all patients to have better overall care, so that the numbers of deaths and cases of disability are reduced by 50% before 2030. For this to be achieved, four strategic aims will be pursued.
Empower and engage communities,
Ensure safe, effective tre
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atment,
Strengthen health systems, and
Increase partnerships, coordination and resources Strong collaboration
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The World Health Organization (WHO) and United NationsHuman Settlements Programme (UN-HABITAT) joint globalreport, Hidden cities: unmasking and overcoming healthinequities in urban settings, exposes the extent to whichcertain city dwellers suffer disproportionately from a wide range of diseases and
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health problems. This report provides information and tools to helpgovernments and local leaders reduce health inequities in their cities. The objective of the report is not tocompare rural and urban health inequities. Urban healthinequities need to be addressed specifically for they aredifferent in their magnitude and in their distribution.
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e rapport conjoint de l’Organisation mondiale de la Santé(OMS) et du Programme des Nations unies pour lesétablissements humains (ONU-Habitat), intitulé La Face cachéedes villes : Mettre au jour et vaincre les inégalités en santé enmilieu urbain, montre que certains habitants des villes sont
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particulièrement exposés à une multitude de maladies et deproblèmes de santé. Ce rapport propose des informations et des outils dont lespouvoirs publics et les responsables locaux peuvent se servirpour lutter contre les inégalités en santé dans leur ville. Il n’apas pour objectif de comparer les inégalités en santé entrepopulations rurales et citadines. De fait, étant différentes depar leur ampleur et leur distribution, les inégalités en santédans les zones urbaines appellent des actions spécifiques.
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Nota científica
24 de abril de 2020
El desarrollo de inmunidad a un patógeno por infección natural es un proceso de varias etapas que suele producirse a lo largo de una o dos semanas. El organismo responde a una infección vírica de forma inmediata a través de una respuesta innata no específ
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ica, en la que los macrófagos, los neutrófilos y las células dendríticas frenan el avance del virus y pueden incluso evitar que este provoque síntomas. A esta respuesta no específica le sigue una respuesta adaptativa en la que el organismo genera anticuerpos que se unen específicamente al virus. Estos anticuerpos son las proteínas denominadas inmunoglobulinas. El organismo también genera linfocitos T que reconocen y eliminan las células infectadas por el virus: es lo que se conoce como inmunidad celular. Esta respuesta adaptativa combinada puede eliminar el virus del organismo y, si la respuesta es suficientemente intensa, puede evitar el agravamiento de la enfermedad o la reinfección por el mismo virus. Este proceso se mide a menudo a través de la presencia de anticuerpos en la sangre.
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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
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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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Between 2012 and 2016, development assistance for HIV/AIDS decreased by 20·0%; domestic financing is therefore critical to sustaining the response to HIV/AIDS. To understand whether domestic resources could fill the financing gaps created by declines in development assistance, we aimed to track spe
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nding on HIV/AIDS and estimated the potential for governments to devote additional domestic funds to HIV/AIDS.
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Training module on malaria control
Comprehensive public health action on population ageing is urgently needed. This will require fundamental shifts, not just in the things we do, but in how we think about ageing itself. The World report on ageing and health outlines a framework for action to foster Healthy Ageing built around the new
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concept of functional ability. Making these investments will have valuable social and economic returns, both in terms of health and wellbeing of older people and in enabling their on-going participation in society
Executive summaries : Arabic; Chinese; English; French; German; Japanese; Portuguese; Russian; Spanish
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Disease Control Priorities –3rdEdition, Volume 2.
This book focuses on maternal conditions, childhood illness, and malnutrition. Specifically, the chapters address acute illness and undernutrition in children, principally under age 5. It also covers maternal mortality, morbidity, stillbirth, and
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influences to pregnancy and pre-pregnancy. It also includes the transition to older childhood, in particular, the overlap and commonality with the child development volume
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WHO South-East Asia Journal of Public Health, April 2017, 6(1) 8 pp. 211 kB