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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Annex of Environmental Health in Emergencies and Disaster; page 245 - 252
Information in Tables 1–4 summarizes the actions of the World Health Organization,
the International Atomic Energy Authority, other international organizations, and local
health authorities in response to a nuclear acci...dent, in compliance with the Convention
on Early Notification and the Assistance Convention.
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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.
Severe acute respiratory infections treatment centre: practical manual to set up and manage a SARI treatment centre and a SARI screening facility in health care facilities
Of the 50 antibiotics in the pipeline, 32 target WHO priority pathogens but the majority have only limited benefits when compared to existing antibiotics. Two of these are active against the multi-drug resistant Gram-negative bacteria, which are spreading rapidly and require urgent solutions.
Gr...am-negative bacteria, such as Klebsiella pneumoniae and Escherichia coli, can cause severe and often deadly infections that pose a particular threat for people with weak or not yet fully developed immune systems, including newborns, ageing populations, people undergoing surgery and cancer treatment.
The report highlights a worrying gap in activity against the highly resistant NDM-1 (New Delhi metallo-beta-lactamase 1), with only three antibiotics in the pipeline. NDM-1 makes bacteria resistant to a broad range of antibiotics, including those from the carbapenem family, which today are the last line of defence against antibiotic-resistant bacterial infections.
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The fifth World Food Safety Day (WFSD) will be celebrated on 7 June 2023 to draw attention and inspire action to help prevent, detect and manage foodborne risks, contributing to food security, human health, economic prosperity, agricultural production, market access, tourism and sustainable developm...ent.
This publication is a guide for all those who want to get involved.
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The leishmaniases are a group of diseases caused by Leishmania spp., which occur in cutaneous, mucocutaneous and visceral forms. They are neglected tropical diseases (NTDs), which disproportionately affect marginalized populations who have limited access to health care. HIV co-infected patients with... Leishmania infection are highly infectious to sandflies, and an increase in the coinfection rate in an endemic area is likely to increase the effective infective reservoir.
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La silla de ruedas es uno de los medios de asistencia de uso más frecuente para mejorar la movilidad personal, condición previa para disfrutar de los derechos humanos y una vida digna, y ayuda a las personas con discapacidad a convertirse en miembros más productivos de sus comunidades. Para mucho...s, una silla de ruedas adecuada, bien diseñada y armada puede constituir el primer paso hacia la inclusión y participación en la sociedad.
Este documento ha sido publicado con el fin de ayudar a los Estados Miembros de la OMS a crear y desarrollar un sistema local de suministro de sillas de ruedas y poner así en ejecución los Artículos 4, 20 y 26 de la Convención sobre los Derechos de las Personas con discapacidad.
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This interim guidance is aimed at assisting organizers of international meetings attended by individuals from EVD-affected countries and individuals with a travel history to EVD-affected countries within the previous 3 weeks.
The first part is intended for organizers of international meetings, to ...safely plan and conduct these events. The second part is addressed to public health authorities directly involved in supporting such international meetings.
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Regulations by the Minister of Health (the “Minister”) Governing The Control and Abatement of the Spread and Eradication of the Ebola Virus Disease (EVD) in Liberia, hereinafter
BMJ Global Health Vol.4 (2019 no.4
The Drug Resistance Index (DRI) is proposed as measure of antibiotic effectiveness in a given country, by combining, in a single metric the use of various antibiotic groups and the resistance proportions of several pathogens.It is a complicated measure that gives ...results that cannot be understood by common knowledge and logic. The DRI conveys a wrong message.
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These guidelines form part of efforts to institutionalize the prevention and containment of antimicrobial resistance (AMR) in healthcare facilities in South Africa, as outlined in the Antimicrobial Resistance Strategic Framework and Implementation Plan. The focus of these guidelines is on two interr...elated aspects of prevention of healthcare associated infections (HAIs) and their spread; and the application of antimicrobial stewardship (AMS) practices at hospital level. They aim to serve as a practical, step-by-step or ‘how-to’ guide, addressing the infection prevention and AMS components of a robust response in a hospital. They draw on
evidence from various international guidance documents and standards for interventions that have been shown to be successful in infection
prevention and AMS programmes. These interventions have been customised to the South African hospital setting based on local
experiences in the public and private health sectors. This was done through a series of workshops and requests for comment involving
country-level experts.
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