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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Standard Operating Procedures | RBC/IHDPC/EID Division | 9/30/2011
Health Services Insights Volume 10: 1–7
This document has been prepared based on the evidence currently available about
Coronavirus disease 2019 (COVID-19) transmission (human-to-human transmission via respiratory droplets or direct contact from an infected individual).
It is recommended to use it in conjunction with the published World... Health Organization
(WHO) Handbook for management of public health events on board ships.
The target audience of this documents is any authority involved in public health response to
a COVID-19 public health event on board ships, including International Health Regulations
(IHR) National Focal Point (NFP), port health authorities, local, provincial and national health
surveillance and response system, as well as port operators and ship operators
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Cyclone in Mozambique and Zimbabwe
Ebola virus disease in Democratic Republic of the Congo
Humanitarian crisis in Mali
Humanitarian crisis in Central African Republic.
This guidance aims to assist leaders in the development or revision of humanitarian-sector contributions to district-level pandemic preparedness and response planning. It is directly linked to H2P guidance for national-level planning.
The unmet need for palliative care in Cox’s Bazar
Updated Interim guidance 29 July 2020
The provision of safe water, sanitation and waste management and hygienic conditions is essential for preventing and for protecting human health during all infectious disease outbreaks, including of coronavirus disease 2019 (COVID-19). Ensuring evidenced-based ...and consistently applied WASH and waste management practices in communities, homes, schools, marketplaces, and healthcare facilities will help prevent human-to-human transmission of pathogens including SARS-CoV-2, the virus that causes COVID-19.
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Rashtriya Bal Swasthya Karykram (RBSK). Operational Guidelines
Equity and Quality in Health: a People's Right
As part of an ongoing effort to promote disability-inclusive humanitarian action in Pacific countries, this policy brief identifies priority actions for disaster readiness, response and recovery. It has been prepared through a collaborative approach and should be a key reference in the future, promo...ting coordination across all levels and stages of the humanitarian cycle in the Region.
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HIV Testing and Counselling Guidelines
Standard Treatment Guideline
This document defines the framework for Malawi’s National HIV Programs. Considering public health benefits and risks, as well as funding and resource implications, deviations from these guidelines are not supported by the Ministry of Health.
Compared to their native counterparts, immigrants and refugees are at higher risk for developing mental health problems due to previous trauma and/or the stress of migration and resettlement; such as war, violence, poverty, and acculturation.