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 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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PEPFAR Malawi’s Country Operational Plan 2022 (COP22) embodies joint priorities from national and subnational dialogues building on the 2020-2025 National Strategic Plan for HIV/AIDS. The interagency team has developed a person-centered, district-tailored and Malawi Population-Based HIV Impact Ass...essment (MPHIA)-informed strategy through extensive engagement with Government of Malawi (GoM) and Civil Society Organizations (CSOs) to sustain HIV epidemic control. At the end of COP21, PEPFAR Malawi was commended for contributing to reaching epidemic control in strong collaboration with GoM and stakeholders including the Global Fund to Fight AIDS, Tuberculosis and Malaria (Global Fund). This includes enrollment of 88% of recipients of care on three or more months of antiretroviral treatment (ART), better outcomes for Malawian children through remarkable efforts in Orphans and Vulnerable Children (OVC) programming and progress made towards reaching men with more intentional and focused programming.
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The aim of the meeting was to broaden the network’s initiatives. Preliminary work involved integrating laboratory testing for skin NTDs other than Buruli ulcer, such as cutaneous leishmaniasis, mycetoma, leprosy and yaws, while extending the network’s reach to encompass additional laboratories.
Guidelines for the treatment of human African trypanosomiasis. Web Annex A. Commissioned by WHO Cochrane Response
The WHO Vision and eye screening implementation handbook (VESIH) offers a step-by-step guidance for conducting vision and eye screenings in community and primary care settings. The evidence-based interventions are drawn from the WHO Package of eye care interventions and developed with a focus on del...ivering screenings easily, safely, and effectively in low- and low–intermediate-resource settings. The early identification through screenings ensures timely treatments and management to avoid vision impairment in high-risk populations, including newborns, pre-school children, school children, and older adults.
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Scientific Brief 9 July 2020
Suicides take a high toll. Over 800 000 people die by suicide every year and it is the second leading cause of
death in 15-29-year-olds. Most suicides occur in low- and middle-income countries where resources
and services, if they do exist, are often scarce and limited for early identification, tr...eatment and support of
people in need. These striking facts and the lack of implemented timely interventions make suicide a serious
global public health problem that needs to be tackled urgently.
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