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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The first WHO Priority Assistive Products List was launched in May 2016. The List includes hearing aids, wheelchairs, communication aids, spectacles, artificial limbs, pill organizers, memory aids and other essential items for many older people and people with disabilities to be able to live a healt...hy, productive and dignified life
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«Ты мой герой» — это книга для детей из разных стран мира, затронутых пандемией COVID-19.
Книгу «Ты мой герой» должен читать вместе с ребенком или небольшой группой де...ей кто-то из родителей, воспитатель или учитель. Детям не рекомендуется читать эту книгу самостоятельно в отсутствие родителей, воспитателя или учителя. Дополнительное руководство «Что делают герои» (будет опубликовано позже) поможет рассмотреть темы, связанные с COVID-19, и научить детей справляться с чувствами и эмоциями, а также предложит дополнительные занятия для детей на основе этой книги.
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EQUIP: Ensuring Quality in Psychological Support is a joint WHO/UNICEF project to improve the competence of helpers and the consistency and quality of training and service delivery. The EQUIP platform makes freely available competency assessment tools and e-learning courses to support governments, t...raining institutions, and non-governmental organizations, both in humanitarian and development settings, to train and supervise the workforce to deliver effective psychological support to adults and children.
EQUIP enhances training and supervision for improved mental health and psychosocial support services.
EQUIP used a consensus-building approach including key stakeholders to develop the evidence-informed competency-based training materials and guidance, as well as the competency assessment tools. These resources have been tested in Ethiopia, Jordan, Kenya, Lebanon, Nepal, Peru, Uganda and Zambia, with results demonstrating training improvements in groups that used the EQUIP platform. For example, use of EQUIP in Lebanon with children and adolescents led to an increase in mastery of core helping skills compared to standard training approaches.
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Country profile: Sierra Leone
The past two decades have witnessed changes in how humans live. Travel and trade, rapid urbanization, limited access to health care as well as environmental degradation and other trends all create the conditions for epidemics to thrive and grow. At the same time, the science and knowledge around inf...ectious hazards are constantly evolving, demanding better response to health emergencies.
This introductory level online course aims to equip frontline responders with the latest know-how to manage outbreaks of known and emerging epidemic-prone diseases in the 21st century. This course focuses on 13 infectious hazards, offering the most relevant scientific, technical and operational knowledge through video presentations and self-tests.
The course will take approximately 6 hours to finish.
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The objective of this manual is to guide managers of schistosomiasis and soil-transmitted helminthiases control programmes towards the elimination of these diseases as public health problems informed by evidence generated through monitoring and evaluation of these programmes. The manual complements ...the objectives outlined by the World Health Organization (WHO) in the road map for neglected tropical diseases 2021–2030 (“the road map”) (WHO, 2020a) and the monitoring and evaluation framework (WHO, 2021a), a companion document to the road map.
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The document provides WHO guidelines on fluid management for children with severe acute malnutrition (SAM) and cholera. It outlines protocols for rehydration therapy, including oral rehydration solutions (ORS) and intravenous fluids for cases of severe dehydration or shock. The guidelines emphasize ...careful monitoring to avoid overhydration and highlight the use of zinc supplementation to reduce diarrhea severity and future episodes. It also discusses the integration of therapeutic feeding to support recovery. The document is a resource for healthcare workers managing vulnerable children in cholera outbreaks.
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Interim Guidance, published 11 January 2021.
The cold chain is necessary to prevent damage to vaccines caused by heat exposure. However, improper use of cold chain equipment may cause damage to freeze-sensitive vaccines (i.e. those vaccines containing alum adjuvant or oil-emulsion adjuvant). Studie...s conducted in several countries with hot and cold climates show frequent occurrences of sub-zero temperatures in the cold chain. The most common cause of exposure to freezing temperature is the failure to correctly condition ice packs prior to transport. Vaccines that are inadvertently frozen lose potency, increase wastage rates and increase the risk of adverse events following immunization (AEFI). Vaccine carriers protect vaccine potency during immunization sessions and transport to outreach sites. This guidance document is intended to help inform which type of vaccine carrier to select based on local context, to maintain vaccine quality, especially at service delivery points.
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The aim of the people-centred framework is to help countries to develop fully prioritized and budgeted NSPs based on a culture of making full use of the available data, which are aligned with national planning cycles and which provide the basis for a robust national response that can accelerate prog...ress towards the goal of ending TB. In addition, applying the framework for other possible applications according to the country’s planning and policy cycle encourages the culture of data utilization and evidence translation into decision making and planning.
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Anaemia is a serious global public health problem that particularly affects young children, menstruating adolescent girls and women, and pregnant and postpartum women. It is a condition in which the number of red blood cells or the haemoglobin concentration within them is lower than normal, affectin...g the blood’s ability to carry oxygen to the body’s tissues.
To reliably monitor the prevalence of anaemia at a population level, it is vital to measure the haemoglobin concentration in an accurate and precise way. In large-scale surveys, however, haemoglobin is most commonly measured using single-drop capillary blood specimens in point-of-care devices. Emerging evidence suggests that the use of single-drop capillary blood can introduce random and/or systematic errors, which may lead to inaccurate estimates, complicating effective anaemia programming.
This technical brief describes the current best practices for haemoglobin measurement, providing guidance to help plan or implement field surveys to assess anaemia at a population level. Continuing work to review emerging evidence is led by members of the WHO-UNICEF Technical Expert Advisory group on nutrition Monitoring (TEAM).
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Information sheet Buruli Ulcer
Situation en date du 23 Mars 2019
Noncommunicable diseases country profiles 2014