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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At the global, national, and regional levels, there are several guidelines and guides regarding the preparedness, prevention, surveillance, and control of diseases caused by respiratory viruses; most initiatives focus on specific virus events or cases. During the coronavirus disease 2019 (COVID-19) ...pandemic, it has been found that even when there are strategies designed and planned for pandemics, it is necessary to strengthen and improve them. Planning for imminent threats, including those posed by respiratory viruses, contributes to strengthening the core capacities of the International Health Regulations (IHR [2005])
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The documents focus on promoting healthier nutrition by addressing issues like sugar, salt, and fat intake, emphasizing their role in non-communicable diseases such as obesity, diabetes, and heart diseases. They include educational tools for children and adults to support balanced diets and public h...ealth strategies to reform food systems and improve dietary habits globally.
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The article explores the underlying factors influencing unhealthy diets and sedentary lifestyles among adolescents in Kilifi County, Kenya. Using a qualitative approach, the study involved interviews and focus group discussions with adolescents, stakeholders, and young adults. Key findings include a... preference for unhealthy, carbohydrate-rich, and sugary foods over traditional and nutritious options, exacerbated by factors like low socioeconomic status, urbanization, and poor farming practices.
Sedentary behavior, such as gambling and extensive technology use, was prevalent, often replacing physical activity. Protective factors like school attendance, community-based services, and parental engagement were identified as mitigating risks. The study highlights the importance of ecological intervention strategies targeting intrapersonal, interpersonal, and community factors to address unhealthy behaviors and promote better health outcomes in adolescents.
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Mpox continues to affect people around the world. A new framework released today by WHO will guide health authorities, communities and other stakeholders in preventing and controlling mpox outbreaks, eliminating human-to-human transmission of the disease, and reducing spillover of the virus from ani...mals to humans.
Mpox is a viral illness caused by the monkeypox virus (MPXV). It can cause a painful rash, enlarged lymph nodes and fever. Most people fully recover, but some get very sick. The virus transmits from person to person through close, including sexual, contact. It also has animal reservoirs in east, central and west Africa, where spillovers from animals to humans can occasionally occur, sparking further outbreaks.
There are two different clades of the virus: clade I and clade II. Clade I outbreaks are deadlier than clade II outbreaks.
A major emergence of mpox linked to clade II began in 2017, and since 2022, has spread to all regions of the world. Between July 2022 and May 2023, the outbreak was declared a Public Health Emergency of International Concern. While that outbreak has largely subsided, cases and deaths continue to be reported today, illustrating that low-level transmission continues around the world.
Currently, there is also a major outbreak of clade I virus in the Democratic Republic of the Congo (DRC), where cases have been on the rise for decades. Since the beginning of the year, over 6500 cases and 345 deaths have been reported in the DRC. Almost half of these are among children under the age of 15 years.
The Strategic framework for enhancing prevention and control of mpox (2024–2027) provides a roadmap for health authorities, communities, and stakeholders worldwide to control mpox outbreaks in every context, advance mpox research and access to countermeasures, and to minimize zoonotic transmission.
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The "Stories from the field" document by the WHO Regional Office for the Eastern Mediterranean shares effective strategies from the Eastern Mediterranean Region for addressing noncommunicable diseases (NCDs) and mental health challenges, particularly during the COVID-19 pandemic. It highlights regio...nal success stories in mitigating NCDs and mental health conditions through innovative, country-specific interventions. The report emphasizes multisectoral collaboration, community engagement, and resilience in public health responses. It aims to inspire further action and knowledge-sharing to enhance health outcomes in challenging settings across the region.
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The Implementation toolkit for accessible telehealth services provides practical guidance to support governments, industry partners, health service providers and civil society groups in the use and implementation of the WHO-ITU Global standard for accessibility of telehealth services. The toolkit is... the result of a collaboration between the World Health Organization and the International Telecommunication Union, and was developed in response to the growing challenges that persons with disabilities and other marginalized populations experience when accessing and using telehealth platforms around the world.
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The key to a lasting world free of all forms of poliovirus lies in rapidly interrupting all remaining endemic transmission of WPV in the endemic areas of Pakistan and Afghanistan. This is the only way to ensure that such strains do not re-emerge globally through international spread. It lays the cor...nerstone for the eventual cessation of all oral polio vaccine use, in order to eliminate the long-term risks associated with variant poliovirus strains, which is the GPEI’s top operational priority. The target for certifying the
world free of all WPV remains end-2026.
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This report on global leishmaniasis surveillance follows those published in 2016–2023.2–6 Six indicators of leishmaniasis are publicly available from the Global Health Observatory (GHO).7 In addition to the GHO, country profiles with up to 30 indicators are published, with detailed data received... from 45 Member States.
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The World Health Organization provides regional and national strategies and operational plans that aim to support countries in work to achieve measles control and elimination. These are guided by high level frameworks including the Immunization Agenda 2030 and the Measles and Rubella Strategic Frame...work 2021–2030. These frameworks promote improvements in routine immunization programmes to reach all children, reduce immunity gaps and prevent outbreaks within the context of universal health care.
This interim guidance on Targeted and selective strategies in measles and rubella vaccination campaigns adds to the suite of guidance documents. It provides expanded description of methods to determine age groups for inclusion in preventive and outbreak response measles and rubella vaccination campaigns; and operational considerations that are specific to targeted and selective strategies in measles and rubella vaccination campaigns. This guidance also updates definitions for tailored, targeted and selective campaigns.The World Health Organization provides regional and national strategies and operational plans that aim to support countries in work to achieve measles control and elimination. These are guided by high level frameworks including the Immunization Agenda 2030 and the Measles and Rubella Strategic Framework 2021–2030. These frameworks promote improvements in routine immunization programmes to reach all children, reduce immunity gaps and prevent outbreaks within the context of universal health care.
This interim guidance on Targeted and selective strategies in measles and rubella vaccination campaigns adds to the suite of guidance documents. It provides expanded description of methods to determine age groups for inclusion in preventive and outbreak response measles and rubella vaccination campaigns; and operational considerations that are specific to targeted and selective strategies in measles and rubella vaccination campaigns. This guidance also updates definitions for tailored, targeted and selective campaigns.
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This technical report presents the results of a cross-sectional survey conducted in Bishkek, Kyrgyzstan, between June and July 2016, as part of the FEEDcities Project – Eastern Europe and Central Asia. The aim was to describe the local street food environment: the characteristics of the vending si...tes, the food offered and the nutritional composition of the industrial and homemade foods often available in these settings. The report also provides guidance for policies to translate the findings into action.
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14 de setembro de 2020Este Modelo de Valores fornece orientações globais para alocação de vacinas contra a COVID-19 entre os países, e orientações nacionais de priorização de grupos para vacinação dentro dos países em caso de oferta limitada. O Modelo destina-se a auxiliar os elaboradore...s de políticas públicas e assessores especializados nos âmbitos global, regional e nacional nas decisões sobre alocação e priorização de vacinas contra a COVID-19. Este documento foi endossado pelo Grupo Consultivo Estratégico de Especialistas em Imunização
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This Handbook, an updated edition of the Management of Severe Malaria, provides new and revised practical guidance on the diagnosis and management of severe malaria.
What can you expect?
As a future facilitator your role will be to learn about the structure of mhGAP-IG, how to teach the materials and utilize opportunities to prastice facilitation and supervision skills.
As a supervisor your role will be to serve as a point of reference for non-specialized heal...th-care providers, supporting them in providing service for individuals with MNS disorders in non-specialized health settings.
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This guide is a revised edition to the previous version published in 2017.
This updated publication provides programme managers with a user-friendly tool that can: (i) analyse and draw conclusions from historic dengue datasets; (ii) identify appropriate alarm indicators that can predict forthcoming... outbreaks at smaller spatial scales; and (iii) use these results and analyses to build an early warning system to detect dengue outbreaks in real time and respond accordingly. This web-based tool can ensure enhanced, fast and secured communication between national and subnational levels, and standardized utilization of surveillance data.
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