This module is part of the WHO series The Immunological Basis for Immunization, which was initially developed in 1993 as a set of eight modules, comprising one module on general immunology and seven modules each devoted to one of the vaccines recommended for the Expanded Programme on Immunization, i....e. vaccines against diphtheria, measles, pertussis, polio, tetanus, tuberculosis and yellow fever. Since then, this series has been updated and extended to include other vaccines of international importance. The main purpose of the modules is to provide national immunization managers and vaccination professionals with an overview of the scientific basis of vaccination against a range of important infectious diseases. The modules developed since 1993 continue to be vaccine-specific, reflecting the biological differences in immune responses to the individual pathogens and the differing strategies employed to create the best possible level of protection that can be provided by vaccination. The modules also serve as a record of the immunological basis for the WHO recommendations on vaccine use, published in the WHO vaccine position papers.*
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Nat Commun 9, 5370 (2018). https://doi.org/10.1038/s41467-018-07804-8. Mycobacterium ulcerans is the causative agent of Buruli ulcer, a neglected tropical skin disease that is most commonly found in children from West and Central Africa. Despite the severity of the infection, therapeutic options are... limited to antibiotics with severe side effects. Here, we show that M. ulcerans is susceptible to the anti-tubercular drug Q203 and related compounds targeting the respiratory cytochrome bc1:aa3. While the cytochrome bc1:aa3 is the primary terminal oxidase in Mycobacterium tuberculosis, the presence of an alternate bd-type terminal oxidase limits the bactericidal and sterilizing potency of Q203 against this bacterium. M. ulcerans strains found in Buruli ulcer patients from Africa and Australia lost all alternate terminal electron acceptors and rely exclusively on the cytochrome bc1:aa3 to respire. As a result, Q203 is bactericidal at low dose against M. ulcerans replicating in vitro and in mice, making the drug a promising candidate for Buruli ulcer treatment.
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Integrating neglected tropical diseases into global health and development: fourth WHO report on neglected tropical diseases evaluates the changing global public health landscape; assesses progress towards the 2020 targets; and considers the possible core elements of a strategic vision to integratin...g neglected tropical diseases into the 2030 Agenda of the Sustainable Development Goals.
Advances have been made through expanded interventions delivered through five public health approaches: innovative and intensified disease management; preventive chemotherapy; vector ecology and management; veterinary public health services; and the provision of safe water, sanitation and hygiene. In 2015 alone nearly one billion people were treated for at least one disease and significant gains were achieved in relieving the symptoms and consequences of diseases for which effective tools are scarce; important reductions were achieved in the number of new cases of sleeping sickness, of visceral leishmaniasis in South-East Asia and also of Buruli ulcer.
The report also considers vector control strategies and discusses the importance of the draft WHO Global Vector Control Response 2017–2030. It argues that veterinary public health requires a multifaceted approach across the human–animal interface as well as a multisectoral programme of work to protect and improve the physical, mental and social well-being of humans, including veterinary, water, sanitation and hygiene.
Integration of activities and interventions into broader health systems is crucial, and despite challenges, has the potential to accelerate progress towards universal health coverage while advancing the 2030 Agenda.
In short, this report drives the message home that “no one must be left behind”.
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The epidemiology of wheeze in children, when assessed by questionnaires, is dependent on parents' understanding of the term “wheeze”.
In a questionnaire survey of a random population sample of 4,236 children aged 6–10 yrs, parents' definition of wheeze was assessed. Predictors of a correct ...definition were determined and the potential impact of incorrect answers on prevalence estimates from the survey was assessed.
Current wheeze was reported by 13.2% of children. Overall, 83.5% of parents correctly identified “whistling or squeaking” as the definition of wheeze; the proportion was higher for parents reporting wheezy children (90.4%). Frequent attacks of reported wheeze (adjusted odds ratio (OR) 3.0), maternal history of asthma (OR 1.5) and maternal education (OR 1.5) were significantly associated with a correct answer, while the converse was found for South Asian ethnicity (OR 0.6), first language not English (OR 0.6) and living in a deprived neighbourhood (OR 0.6).
In summary, the present study showed that misunderstanding could lead to an important bias in assessing the prevalence of wheeze, resulting in an underestimation in children from South Asian and deprived family backgrounds. Prevalence estimates for the most severe categories of wheeze might be less affected by this bias and questionnaire surveys on wheeze should incorporate measures of parents' understanding of the term wheeze.
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In response to a call by the United Nations Secretary-General and the Governments of Guinea, Liberia and Sierra Leone, an international team conducted an Ebola Recovery Assessment.The aim was to contribute towards laying the foundation for short-, medium- and long-term recovery while the medical eme...rgency response continues to tackle the epidemic.
This summary report is based on a full report as well as three detailed reports submitted to each of the three governments as contributions to their national recovery planning processes.
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Psychosocial support is a very important component in Gender Based Violence response that provide appropriate care, protection and social integration. Psychological aspects affect thoughts, emotions, behavior, memory, learning ability, perceptions and understanding. While the social aspects have ef...fects on relationships, often shaped by traditions, culture ,values, family and community, but also include one’s status in the community and economic wellbeing. These have different effects on the women, men, boys and girls as victims /survivors and perpetuators.
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The International Classification of Functioning, Disability and Health, known more commonly as ICF, provides a standard language and framework for the description of health and health-related states. Like the first version published by the World Health Organization for trial purposes in 1980, ICF is... a multipurpose classification intended for a wide range of uses in different sectors. It is a classification of health and health-related domains -- domains that help us to describe changes in body function and structure, what a person with a health condition can do in a standard environment (their level of capacity), as well as what they actually do in their usual environment (their level of performance).
These domains are classified from body, individual and societal perspectives by means of two lists: a list of body functions and structure, and a list of domains of activity and participation. In ICF, the term functioning refers to all body functions, activities and participation, while disability is similarly an umbrella term for impairments, activity limitations and participation restrictions. ICF also lists environmental factors that interact with all these components.
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Climate change is damaging human health now and is projected to have a greater impact in the future. Low- and middle-income countries are seeing the worst effects as they are most vulnerable to climate shifts and least able to adapt given weak health systems and poor infrastructure. Low-carbon appro...ach can provide effective, cheaper care while at the same time being climate smart. Low-carbon healthcare can advance institutional strategies toward low-carbon development and health-strengthening imperatives and inspire other development institutions and investors working in this space. Low-carbon healthcare provides an approach for designing, building, operating, and investing in health systems and facilities that generate minimal amounts of greenhouse gases. It puts health systems on a climate-smart development path, aligning health development and delivery with global climate goals. This approach saves money by reducing energy and resource costs. It can improve the quality of care in a diversity of settings. By prompting ministries of health to tackle climate change mitigation and foster low-carbon healthcare, the development community can help governments strengthen local capacity and support better community health.
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Psychosocial support is a very important component in Gender Based Violence response that provide appropriate care, protection and social integration. Psychological aspects affect thoughts, emotions, behavior, memory, learning ability, perceptions and understanding. While the social aspects have ef...fects on relationships, often shaped by traditions, culture ,values, family and community, but also include one’s status in the community and economic wellbeing. These have different effects on the women, men, boys and girls as victims /survivors and perpetuators.
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The Greater Horn of Africa is experiencing one of the worst food insecurity situations in decades. It is estimated
that more than 37 million people are in Integrated Food Security Phase Classification (IPC)1 phase 3 or above and approximately 7 million children under the age of five are acutely mal...nourished in the region. While finding food and safe water is the absolute priority, the health response is essential to avert preventable disease and death.
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WHO published guidance for clinicians and health care decision-makers on the use of corticosteroids in patients with COVID-19.
We recommend systemic corticosteroids for the treatment of patients with severe and critical COVID-19. We suggest not to use corticosteroids in the treatment of patients ...with non-severe COVID-19 as the treatment brought no benefits, and could even prove harmful. Treatment should be under supervision of a clinician.
Corticosteroids are listed in the WHO model list of essential medicines, readily available globally at a low cost. WHO encourages countries to maintain sufficient stocks of corticosteroids to treat COVID-19 and the other disease for which they are effective, while not maintaining excessive stocks which could deny other countries access.
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Nosocomial infections and antimicrobial resistance are two special health issues listed in Annex 1 of Commission Decision 2000/96/EC of 22 December 1999 on the communicable diseases to be progressively covered by the Community network under Decision No 2119/98/EC of the European Parliament and of th...e Council.
Nosocomial infections correspond to infections acquired in hospitals. The term “Healthcare-associated infections” is now preferred because it includes not only infections acquired in hospitals, but also in other settings where healthcare is provided, e.g. long-term care facilities, nursing homes, home care, etc.
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For the primary health worker in a low/middle-income country (LMIC) setting, delivering quality primary care is challenging. This is often complicated by clinical guidance that is out of date, inconsistent and informed by evidence from high-income countries that ignores LMIC resource constraints and... burden of disease. The Knowledge Translation Unit (KTU) of the University of Cape Town Lung Institute has developed, implemented and evaluated a health systems intervention in South Africa, and localised it to Botswana, Nigeria, Ethiopia and Brazil, that simplifies and standardises the care delivered by primary health workers while strengthening the system in which they work. At the core of this intervention, called Practical Approach to Care Kit (PACK), is a clinical decision support tool, the PACK guide. This paper describes the development of the guide over an 18-year period and explains the design features that have addressed what the patient, the clinician and the health system need from clinical guidance, and have made it, in the words of a South African primary care nurse, ‘A tool for every day for every patient’. It describes the lessons learnt during the development process that the KTU now applies to further development, maintenance and in-country localisation of the guide: develop clinical decision support in context first, involve local stakeholders in all stages, leverage others’ evidence databases to remain up to date and ensure content development, updating and localisation articulate with implementation.
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People affected by impairments and disabilities associated with TB are even more likely to belong to marginalized segments of society and are more likely to have their human rights unprotected. The challenges faced by people affected by TB include the consequences of impairment and disability associ...ated with the disease, its treatment as well as with the stigma and discrimination applied to people affected by TB. There is now compelling evidence that the disease and its treatment affect quality of life and life expectancy even after successful treatment.
The WHO Global Tuberculosis Programme has produced the first policy brief on TB-associated disability, building on the increasing evidence in recent years on the unaddressed needs of people with TB who experience impairment and disability while on TB treatment and after completing TB treatment.
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Antimicrobial resistance (AMR) has emerged as a leading cause of death in the African region, surpassing fatalities from malaria, HIV, and TB. In response to this critical threat, the region has adopted the AMR Global Action Plan and the African Union Framework for Antimicrobial Resistance Control 2...020 – 2025, which is tailored to meet the specific needs of African nations through a coordinated approach. While most countries in the region have developed and prioritized National Action Plans (NAPs) to tackle AMR, the overall response remains inadequate given the magnitude of the threat, which endangers human, animal, environmental, aquatic, and plant health.
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Program Implementation Manual (PIM)
The Save One Million Lives Program for Results (SOML PforR) is a Federal Government of Nigeria maternal and child health program, supported by the World Bank, which provides incentives based on achievement of results (health outcomes) and helps to drive insti...tutional processes needed to achieve these results.
This Program Implementation Manual provides a description of the program and operational guidelines for effective implementation. The Manual contains guidelines and procedures relating to disbursements and fund flows, institutional arrangements, financial management as well as monitoring and evaluation, while providing clear definition of the roles and responsibilities of all stakeholders.
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The discourse on climate change and migration has shifted from labelling migration merely as a consequence of climate impacts, to describing it as a form of human adaptation. This article explores the adaptation framing of the climate change and migration nexus and highlights its shortcomings and ad...vantages. While for some groups, under certain circumstances migration can be an effective form of adaptation, for others it leads to increased vulnerabilities and a poverty spiral, reducing their adaptive apacities. Non-economic losses connected to a change of place further challenge the notion of successful adaptation. Even when migration improves the situation of a household, it may conceal the lack of action on climate change adaptation from national governments or the international community. Given the growing body of evidence on the diverse circumstances and outcomes of migration
in the context of climate change, we distinguish between reactive and proactive migration and argue for a precise differentiation in the academic debate
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This paper has been prepared to inform discussion at the conference “Beating the DRUM - Domestic Resource Use and Mobilization for accelerating progress towards SDG3,”. Many countries face critical shortfalls in domestic resource use and mobilization (DRUM) for health, threatening to push health... goals out of reach. DRUM failures weaken human capital formation, a vital input to economic growth. Countries need more and better health spending. The first step is to apply already-proven DRUM solutions, adapting them to new contexts. However, in many countries, even the best achievable DRUM performance will not be enough. New solutions are needed, including private-sector engagement and a next generation of DAH. The “Beating the DRUM” conference offers a platform for countries and partners to dialogue and build joint strategy. While each country’s situation is unique, shared lines of action are emerging.
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Agriculture is highly exposed to climate change, as farming activities directly depend on climatic conditions. Agriculture also contributes to climate change through the release of greenhouse gases into the atmosphere. Two powerful greenhouse gases are by-products of agricultural activity:
Methan...e (CH4) – from livestock digestion processes and stored animal manure;
Nitrous oxide (N2O) – from organic and mineral nitrogen fertilisers.
However, agriculture can also contribute to climate change mitigation by reducing greenhouse gas emissions and by sequestering carbon while maintaining food production.
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The WHO End TB Strategy aims to end the global TB epidemic by 2030, in alignment with Goal 3 of the United Nations (UN) Sustainable Development Goals (SDGs). Member States of the World Health Organization (WHO) and the UN committed to ending the TB epidemic through adoption of WHO’s End TB Strateg...y and the UN SDGs in 2014 and 2015, respectivel
Almost half of the deaths worldwide caused by TB in 2019 occurred in the WHO South-East Asia Region, home to around a quarter of the global population. Maintaining robust progress in this Region is therefore essential if the global goal of ending the TB epidemic is to be realized. Despite substantial gains made in the Region, the threat to
health worldwide posed by the COVID-19 pandemic has the potential to reverse these gains and eclipse the focus on the global TB emergency.
While continuing to tackle COVID-19-related challenges, countries will need to rapidly and urgently deploy supplementary measures to address the large numbers of missed cases, poor treatment outcomes and, potentially, a higher TB burden.
The Regional Strategic Plan towards Ending TB in the Region 2021–2025 clearly articulates priority interventions, analyses the challenges, bottlenecks and opportunities, and focuses on implementation considerations in the Region.
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