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 o...f diphtheria is classic respiratory diphtheria, whereby the exotoxin produced characteristically 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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Proc Natl Acad Sci U S A v.110(21); 2013 May 21 PMC3666729 ;
A systematic review was conducted by a multidisciplinary team to analyze qualitatively best available scientific evidence on the effect of agricultural intensification and environmental ...changes on the risk of zoonoses for which there are epidemiological interactions between wildlife and livestock.
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Evidence-based psychological interventions are an important part of health, social, protection and education services and can help increase access to effective mental health treatments and progression towards universal health coverage.
This manua...l provides managers and others responsible for planning and delivering services with practical guidance on how to implement manualized psychological interventions for adults, adolescents and children. It covers the five key implementation steps: make an implementation plan; adapt for context; prepare the workforce; identify, assess and support potential beneficiaries; and monitor and evaluate the service.
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This booklet presents key messages for action, summarized from a set of chapters on different environmental health issues, available at www.who.int/ ceh/publications/healthyenvironmentsforhealthychildren. The work is a result ...to-highlight medbox">of an on-going partnership between WHO, UNEP and UNICEF in the area of children’s environmental health, and seeks to update the 2002 joint publication “Children in the New Millennium: Environmental Impact on Health.”
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Beat the heat: child health amid heatwaves in Europe and Central Asia finds that half of these children died from heat-related illnesses in their first year of life. Most children died during the su...mmer months.
"Around half of children across Europe and Central Asia – or 92 million children – are already exposed to frequent heatwaves in a region where temperatures are rising at the fastest rate globally. The increasingly high temperatures can have serious health complications for children, especially the youngest children, even in a short space of time. Without care, these complications can be life-threatening,” said Regina De Dominicis UNICEF Regional Director for Europe and Central Asia.
Heat exposure has acute effects on children, even before they are born, and can result in pre-term births, low birth weight, stillbirth, and congenital anomalies. Heat stress is a direct cause of infant mortality, can affect infant growth and cause a range of paediatric diseases. The report also notes that extreme heat caused the loss of more than 32,000 years of healthy life among children and teenagers in the region.
As the temperatures continue to rise, UNICEF urges governments across Europe and Central Asia to:
- Integrate strategies to reduce the impact of heatwaves including through National Determined Contributions (NDC), National Adaptation Plans (NAP), and disaster risk reduction and disaster management policies with children at the centre of these plans
Invest in heat health action plans and primary health care to more adequately support heat-related illness among children
- Invest in early warning systems, including heat alert systems
- Adapt education facilities to reduce the temperatures in the areas children play in and equip teachers with skills to respond to heat stress
- Adapt urban design and infrastructure including ensuring buildings, particularly those housing the most vulnerable communities are equipped to minimize heat exposure
- Secure the provision of safe water, particularly in countries with deteriorating water quality and availability.
UNICEF works with governments, partners and communities across the region to build resilience against heatwaves. This includes equipping teachers, community health workers and families with the skills and knowledge to respond to heat stress.
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A practical approach for developing policy and strategy to improve quality of care
The handbook outlines an approach for the development of national policies and strategies to improve the quality ...of care. Such policy and strategy can help clarify the structures, roles and responsibilities within national quality efforts, support the institutionalization of a culture of quality, and secure buy-in from health system leaders and stakeholders
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COVID-19 has turned the world upside down. Everything has been impacted. How we live and interact with each other, how we work and communicate, how we move around and travel. Every aspect of our lives has been affected.
At present at least 2.2 billion people around the world have a vision impairment, of whom at least 1 billion have a vision impairment that could have been prevented or is yet to be addressed. The world faces considerable challenges in terms ...ass="attribute-to-highlight medbox">of eye care, including inequalities in the coverage and quality of prevention, treatment and rehabilitation services; a shortage of trained eye care service providers; and poor integration of eye care services into health systems, among others. The World report on vision aims to address these challenges and galvanize action.
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Detecting breast cancer early improves survival, lowers morbidity and reduces the cost of care. Learn about the major breast cancer early detection strategies in this knowledge summary, including breast cancer education and awareness, and breast sel...f-detection and clinical breast exams (CBE).
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Multiple pandemics, numerous outbreaks, thousands of lives lost and billions of dollars of national income wiped out—all since the turn ...ss="attribute-to-highlight medbox">of this century, in barely 17 years—and yet the world’s investments in pandemic preparedness and response remain woefully inadequate. We know by now that the world will see another pandemic in the not-too-distant future; that random mutations occur often enough in microbes that help them survive and adapt; that new pathogens will inevitably find a way to break through our defenses; and that there is the increased potential for intentional or accidental release of a synthesized agent. Every expert commentary and every analysis in recent years tells us that the costs of inaction are immense. And yet, as
the havoc caused by the last outbreak turns into a fading memory, we become complacent and relegate the case for investing in preparedness on a back burner, only to bring it to the forefront when the next outbreak occurs. The result is that the world remains scarily vulnerable.
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This checklist is an operational tool to help national authorities develop or revise national respiratory pathogen (inclusive of influenza and coronaviruses) pandemic preparedness plans.
This toolkit is designed to help you plan and implement a Patient Navigation program with the best chance of reducing health disparities and improving health outcomes for your patients. It contains evidence-based and experience-based examples, case ...studies, practical tools, and resources to help you:
1. Establish an evidence-based patient navigation program tailored to reduce barriers for your patients
2. Incorporate best practices to enhance current patient navigation programs or services
3. Implement a patient navigation model to address any targeted medical condition
where disparities exist
4. Hire, prepare, supervise, support and retain effective Patient Navigators
5. Navigate patients who experience health disparities
6. Evaluate patient navigation programs with the aim of continuous quality
improvement
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Ramped-up cancer services could save 7 million lives over the next decade—and addressing huge service gaps between rich and poor countries is key to success, according to this report.
In 2019, over 90% of high-income countries reported that com...prehensive cancer treatment services were available through the public health system, compared to fewer than 15% of low-income countries, according to WHO.
But poorer countries can make substantial strides with a universal health coverage approach and use of the latest science to meet their particular needs.
The report lays out proven ways to prevent new cancer cases without breaking the bank, including tobacco-control measures and vaccines that protect against common cancers.
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The World Drug Report 2022 is aimed not only at fostering greater international cooperation to counter the impact of the world drug problem on health, governance and security, but also, with its special insights, at assisting Member States in antici...pating and address-ing threats from drug markets and mitigating their consequences.
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In 2013 the World Health Organization (WHO) published the report Protecting health from climate change:vulnerability and adaptation assessment. The aim was to provide basic and flexible guidance on conducting national or subnational assessments of ...current and future vulnerability (the susceptibility of a population or region to harm) to the health risks of climate change, and of policies and programmes that could increase resilience, taking into account the multiple determinants of climate-sensitive health outcomes.
That guidance has been a very useful tool, applied to more than 50 countries and settings, and has helped countries to prepare their health contributions to United Nations Framework Convention on Climate Change national adaptation plans.
Since the launch of the guidance, WHO, technical partners such as Health Canada, and countries have learned much in terms of its applicability in different countries, at national and local levels.
At the same time, knowledge on climate change and health has increased.
WHO, the Pan American Health Organization and Health Canada have produced this updated version, which aims to better support countries in their assessments by proposing a simpler tool that incorporates
all lessons learned.
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The Sustainable Development Goals (SDGs) call for major societal transformations that will require significant fiscal outlays as well as private investments. The fiscal outlays cover public investments, the public provision of social services, and s...ocial protection for vulnerable populations. The key message of this paper, building on recent reports by the IMF and SDSN (IMF, 2019b; SDSN, 2018) is that the governments of Low-Income Developing Countries (LIDCs) will require a substantial increase in fiscal (budget) revenues, far beyond what they can achieve by their own fiscal reforms. For this reason, SDG financing will require substantial international cooperation to enable the LIDCs to finance their SDG fiscal outlays. One important source of increased revenues should be the globally coordinated taxation of ultra-high-net worth assets. Today’s ultra-rich should help to pay for the survival and basic needs of the world’s poorest people.
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Four major objectives are set forth: more effective leadership and governance for mental health; the provision of comprehensive, integrated mental health and social care services in community-based settings; implementation ...highlight medbox">of strategies for promotion and prevention; and strengthened information systems, evidence and research.
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In March 2020 the IASC Reference Group on Mental Health and Psychosocial Support uniting 57 humanitarian organizations as member issued the Interim Briefing Note Addressing Mental Health and Psychosocial Aspects of COVID-19 Outbreak. This document h...as proven to be very useful in the response and has till now been translated in 24 languages. It covers a set of recommended activities as well as messages for different target groups.
The current document is an annex to the Interim Briefing Note and is meant to support the MHPSS operational response within the various sectors of humanitarian work. Approaches and interventions to MHPSS are not confined to one sector, but need to be integrated within many existing sectors and clusters.This document contains a wealth of operational information and practical approaches that can be used for humanitarian programming in health, SGBV, community-based protection, nutrition, camp management and camp coordination.
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WHO today released its first roadmap to tackle postpartum haemorrhage (PPH) – defined as excessive bleeding after childbirth - which affects millions of women annually and is the world’s leading cause ...of maternal deaths.
Despite being preventable and treatable, PPH results in around 70 000 deaths every year. For those who survive, it can cause disabilities and psychological trauma that last for years.
“Severe bleeding in childbirth is one of the most common causes of maternal mortality, yet it is highly preventable and treatable,” said Dr Tedros Adhanom Ghebreyesus, WHO Director-General. “This new roadmap charts a path forward to a world in which more women have a safe birth and a healthy future with their families.”
The Roadmap aims to help countries address stark differences in survival outcomes from PPH, which reflect major inequities in access to essential health services. Over 85% of deaths from PPH happen in sub-Saharan Africa and South Asia. Risk factors include anaemia, placental abnormalities, and other complications in pregnancy such as infections and pre-eclampsia.
Many risk factors can be managed if there is quality antenatal care, including access to ultrasound, alongside effective monitoring in the hours after birth. If bleeding starts, it also needs to be detected and treated extremely quickly. Too often, however, health facilities lack necessary healthcare workers or resources, including lifesaving commodities such as oxytocin, tranexamic acid or blood for transfusions.
“Addressing postpartum haemorrhage needs a multipronged approach focusing on both prevention and response - preventing risk factors and providing immediate access to treatments when needed - alongside broader efforts to strengthen women’s rights,” said Dr Pascale Allotey, WHO Director for Sexual and Reproductive Health and HRP, the UN’s special programme on research development and training in human reproduction. “Every woman, no matter where she lives, should have access to timely, high quality maternity care, with trained health workers, essential equipment and shelves stocked with appropriate and effective commodities – this is crucial for treating postpartum bleeding and reducing maternal deaths.”
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The Climate Dictionary is an initiative aimed at providing an everyday guide to understanding climate change. It seeks to bridge the gap between complex scientific jargon and the general public, making climate concepts accessible and relatable to individuals from various backgrounds and levels ... class="attribute-to-highlight medbox">of expertise.
The concept was driven by the belief that empowering people with knowledge is crucial in fostering action and collective responsibility towards addressing climate change. By utilizing a creative combination of compelling visuals, concise explanations, and engaging storytelling, "The Climate Dictionary" effectively communicated complex climate concepts in a user-friendly and visually captivating manner. The publication features a series of climate-related term or phenomenon. The content was meticulously crafted to cater to diverse audiences, catering to both the scientifically inclined and those with limited prior knowledge of the subject.
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