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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Version 1.7 Updated October 14, 2010 | Preschool PTSD Treatment (PPT) is a theory-driven, manualized protocol based on cognitive-behavioral therapy (CBT) with modifications for young children. Some of these modifications involve parent-child relationship dynamics that are salient for this age grou...p.
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The Democratic Republic of the Congo (DRC) is one of the most complex and long-standing humanitarian crises in Africa. By the end of 2020, some 940,421 Congolese refugees and asylum seekers were hosted across the African continent. Ongoing conflicts in eastern DRC, as well as intercommunal violence,... continue to cause forced displacement within the DRC and into neighbouring countries, along with tragic loss of human life and destruction of communities.
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Five months after the beginning of the desert locust upsurge in the Greater Horn of Africa and Yemen, and four months since the launch of the response plan (24 January 2020) a total of USD 130 million have been mobilized in the region.
As described in the recently published Food and Agriculture Org...anization of the United Nations (FAO) quarterly report (January to April 2020), a lot has been achieved already, thanks to generous contributions from resource partners and affected governments.
But bringing a desert locust upsurge under control and mitigating its impact on livelihoods and food security requires a prolonged effort and numerous factors could influence the duration and magnitude of the problem, including the widespread presence of COVID-19.
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The COVID-19 pandemic has provided a dramatic illustration of the extent to which the health of people, animals and the environment is interdependent, which is why “One Health” is now high on the political agenda. This document provides an overview of KfW Development Bank’s approach to promoti...ng human, animal and environmental health. Involvement in areas like agriculture, biodiversity, health and water is already contributing to the One Health objectives. Moving forward, it will also be important to give greater consideration to interdependencies between sectors and ensure that structural connections are taken into account in cross-sectoral programmes.
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The American Journal of Tropical Medicine and Hygiene Volume 106: Issue 1 p.12-14.he piece highlights a body of research that suggests tiny plastic particles could disrupt immune and endocrine systems, damage organs, and cause other health problems. “Without a fundamental reimagining of global... industrial practices, we will continue to see dire impacts on the climate, the planet and our health
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Methodological field approaches for scientists with a basic background in entomology to prepare and implement a yellow fever entomological assessment during outbreaks
Climate change is a verified, global phenomenon, but its consequences will not be evenly distributed. Developing countries and small island nations will be the most affected. Countries will experience more frequent extreme weather events and resulting changes in water quality and availability, incre...ased contamination of air, and food security problems. Health impact due to climate change include diarrhoeal diseases, vector-borne diseases, heat stress, malnutrition, deaths and injuries due to extreme weather events and mental stress.
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In the Indian state of Bihar, visceral leishmaniasis (VL) is a major public health issue that has been aggravated by the rising incidence of new Human immunodeficiency virus (HIV) infections. In endemic areas, the risk of VL infections in patients living with HIV (PLHIV) is higher. It is important t...o investigate the disease-related knowledge, attitude, and practices (KAP) of PLHIV in Bihar in order to monitor HIV/VL co-infection. Adequate knowledge, a positive attitude, and good practices for VL control are essential to stamp out the disease. This study investigated the KAP towards VL in HIV patients attending antiretroviral therapy (ART) clinic at ICMR-RMRIMS, Patna.
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This document provides interim guidance for effective risk communication around Zika virus transmission and potential complications. A causal relationship between Zika virus infection and these potential complications has not yet been proven. In this uncertainty, effective communication strategies s...hould be implemented to enable people to take the best informed decisions about protecting themselves, their families and communities. This interim guidance is intended to be used by risk and health communication managers, staff and volunteers at global, regional or country level; communications professionals; anthropologists; sociologists; healthcare providers;hospital administrators; community leaders; programme managers;
and policymakers.
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PLoS Neglected Tropical Diseases https://doi.org/10.1371/journal.pntd.0004762
This study shows the importance of an integrated entomological and medical surveillance for the evaluation of arboviral disease risk, which is a precondition for designing cost-effective vector control programs.