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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Fact sheet -Updated November 2015
Data Collection: Recommended Surgical and Anaesthesia Care Indicators
An Examination of 13 Projects in PEPFAR-Supported Countries
This country profile provides an overview of latest available data on a variety of HIV related topics in Mozambique as of 2016.
My Dad Take's Part in the Family
A compendium of TB REACH case studies, lessons learned and a monitoring and evaluation framework.
Accessed November 2017.
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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As a parent of a child who will learn two or more languages, you may have questions. This guide will give you information based on research to help you. Language is the best tool to help a child do well later in school and in life.
Available in: Arabic, Chinese, English, French, Hindi, Punjabi, S...panish, Tagalog, Tamil, Urdu. For other language versions go to: http://en.beststart.org/for_parents/are-you-looking-resources-languages-other-english-and-french and scroll down to Child Development.
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Act 851 | AN ACT to revise and consolidate the law relating to public health to
prevent disease, promote, safeguard, maintain and protect the health
of humans and animals and to provide for related matters.