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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WHO Regional EVD Preparedness Meeting Presentations January 14-16, 2015
2nd edition.
T The Compendium has been developed as a clear and concise instrument to facilitate the understanding and planning of delivery of high-quality care for everybody affected by TB. It incorporates all recent policy guidance from WHO; follows the care pathway of persons with signs or sympt...oms of TB in seeking diagnosis, treatment and care; and includes key algorithms and cross-cutting elements that are essential to a patient-centered approach in the cascade of TB care.
The Compendium is structured into 33 WHO standards and consolidates all current WHO TB policy recommendations into a single resource, with electronic links to the individual, comprehensive WHO policy guidelines
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Data Collection: Recommended Surgical and Anaesthesia Care Indicators
Over the past 50 years, dengue has spread from nine to over a hundred countries, making it the most rapidly spreading vector-borne disease. Yet, dengue continues to have a low profile among policy-makers and donors and does not receive the media attention it deserves. While there is no vaccine or cu...re for dengue, it can be managed and prevented. We need a renewed commitment to integrated programming that includes improved management and diagnosis, increased awareness and community participation in controlling the vector and enhanced environmental sanitation
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The figures and findings reflected in the 2019 Humanitarian Needs Overview (HNO) represent the independent analysis
of the United Nations (UN) and its humanitarian partners based on information available to them. While the HNO aims
to provide consolidated humanitarian analysis and data to help inf...orm joint strategic humanitarian planning, many of
the figures provided throughout the document are estimates based on sometimes incomplete and partial data sets using
the methodologies for collection that were available at the time. The Government of Syria has expressed its reservations
over the data sources and methodology of assessments used to inform the HNO, as well as on a number of HNO findings.
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Lea este folleto para informarse sobre la TB y lo que puede hacer
para curarse. Colóquelo a mano para consultarlo y leerlo cuando
tenga preguntas. Siga el tratamiento para curarse de la TB.
My Dad Take's Part in the Family
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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A Guide For Multicentre Trials in High-Burden Countries
Nepal has performed exceptionally in improving reproductive, maternal and child health outcomes over the past two decades. In this article, we discuss these achievements and outline a vision for the future of maternal, newborn and child survival in Nepal after the era of the Millennium Development G...oals. On the pathway towards quality universal health care services for all, we propose strengthening of health information systems, gradual health system reforms, improvement of existing facility based services, development of integrated service delivery models, improved technical and managerial capacity at district and facility levels. Elimination of all preventable causes of maternal, newborn and child deaths in Nepal should be our collective aspirational goal.
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