This report investigates the impact of potential misclassification of samples on HIV prevalence estimates for 23 surveys conducted from 2010-2014. In addition to visual inspection of laboratory results, we examined how accounting for potential misclassification of HIV status through Bayesian latent ...class models affected the prevalence estimates. Two types of Bayesian models were specified: a model that only uses the individual dichotomous test results and a continuous model that uses the quantitative information of the EIA (i.e., the signal-to-cutoff values). Overall, we found that adjusted prevalence estimates matched the surveys’ original results, with overlapping uncertainty intervals. This suggested that misclassification of HIV status should not affect the prevalence estimates in most surveys. However, our analyses suggested that two surveys may be problematic. The prevalence could have been overestimated in the Uganda AIDS Indicator Survey 2011 and the Zambia Demographic and Health Survey 2013-14, although the magnitude of overestimation remains difficult to ascertain. Interpreting results from the Uganda survey is difficult because of the lack of internal quality control and potential violation of the multivariate normality assumption of the continuous Bayesian latent class model. In conclusion, despite the limitations of our latent class models, our analyses suggest that prevalence estimates from most of the surveys reviewed are not affected by sample misclassification.
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Whole-genome sequencing (WGS) provides a vast amount of information and the highest possible resolution for pathogen subtyping. The application of WGS for global surveillance can provide information on the early emergence and spread of AMR and further inform timely policy development on AMR control.... Sequencing data emanating from AMR surveillance may provide key information to guide the development of rapid diagnostic tools for better and more rapid characterization of AMR, and thus complement phenotypic methods. This document addresses the applications of WGS for AMR surveillance, including the benefits and limitations of current WGS technologies
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BMJ Open2018;8:e020423. doi:10.1136/bmjopen-2017-02042
EC has been increasingly used in the evaluation of maternal and child health programmes.12–15 For instance, Nesbitt et al compared crude coverage and EC of pregnant women with facility-based obstetric services in Ghana and estimated that alth...ough 68% of the women studied had service access only 18% received high-quality care provided by a skilled birth attendant.16 Similarly, by comparing EC of young children receiving Strengths and limitation of this study. Using multiple data sources (direct observation, vignettes, facility inventories) this study comprehensively assessed under 5-year-old child service
performance of first-line health facilities. We conducted this study in around 500 primary-level health facilities and within 7000 households
across six regions in Burkina Faso.
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Updated version – September 2020
The COVID-19 pandemic is affecting everyone. Globally, millions of people have been infected with the virus, while hundreds of thousands have lost their lives. In Moldova, the pandemic is placing an ever-increasing pressure on the health care and social protectio...n systems, causing major disruptions to economic processes and limitations to social life, deepening inequalities and proving how vulnerable we are.
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The availability of water, sanitation and hygiene (WASH) services in health care facilities, especially in maternity and primary-care settings where they are often absent, supports core aspects of quality, equity and dignity for all people. This document describes an approach for conducting a nation...al situational analysis of water, sanitation and hygiene (WASH) as a basis for improving quality of care. This document describes the process from the initial preparatory stages, including triggers for action, through data collection and analysis to the dissemination of results. Each element of the approach is described and possible limitations and mechanisms to mitigate these are explored.
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Recommendations and Summary
This report explores the impact of COVID-19 on humanitarian access in the initial months of the crisis, including both the delivery of assistance and performance of protection activities. It examines the varying crisis responses, including the shift to a more localized a...pproach in certain cases. The analysis draws on case research from Colombia, Myanmar, Nigeria, South Sudan and Yemen, as well as on wide-ranging interviews with humanitarian practitioners and experts from around the world. The research was conducted between August – November 2020. It does not make claims about the legitimacy of government decisions to restrict access – indeed, in many instances, there appeared to be a clear objective of limiting the spread of COVID-19 – but instead focuses on how access limitations have affected the delivery of aid.
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13 July 2021
The module provides an overview of factors to consider when monitoring the safety of COVID-19 vaccines administered to pregnant and breastfeeding women. It describes how national routine AEFI surveillance should be adapted to cater for this specific group of population using both pass...ive and active surveillance methods. Specific considerations and limitations of each method are provided as well as tools for implementation.
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By almost any measure, human health is better now than at any time in history. Life expectancy has soared from 47 years in 1950–1955, to 69 years in 2005–2010, and death rates in children younger than 5 years of age have decreased substantially, from 214 per thousand live births in 1950–1955, ...to 59 in 2005–2010. But these gains in human health have come at a high price: the degradation of nature’s ecological systems on a scale never seen in human history. A growing body of evidence shows that the health of humanity is intrinsically linked to the health of the environment, but by its actions humanity now threatens to destabilise the Earth’s key life-support systems.
As a Commission, we conclude that the continuing degradation of natural systems threatens to reverse the health gains seen over the last century. In short, we have mortgaged the health of future generations to realise economic and development gains in the present.
Despite present limitations, the Sustainable Development Goals provide a great opportunity to integrate health and sustainability through the judicious selection of relevant indicators relevant to human wellbeing, the enabling infrastructure for development, and the supporting natural systems, together with the need for strong governance.
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BACKGROUND: Growing political attention to antimicrobial resistance (AMR) offers a rare opportunity for achieving meaningful action. Many governments have developed national AMR action plans, but most have not yet implemented policy interventions to reduce antimicrobial overuse. A systematic evidenc...e map can support governments in making evidence-informed decisions about implementing programs to reduce AMR, by identifying, describing, and assessing the full range of evaluated government policy options to reduce antimicrobial use in humans.
METHODS AND FINDINGS: Seven databases were searched from inception to January 28, 2019, (MEDLINE, CINAHL, EMBASE, PAIS Index, Cochrane Central Register of Controlled Trials, Web of Science, and PubMed). We identified studies that (1) clearly described a government policy intervention aimed at reducing human antimicrobial use, and (2) applied a quantitative design to measure the impact. We found 69 unique evaluations of government policy interventions carried out across 4 of the 6 WHO regions. These evaluations included randomized controlled trials (n = 4), non-randomized controlled trials (n = 3), controlled before-and-after designs (n = 7), interrupted time series designs (n = 25), uncontrolled before-and-after designs (n = 18), descriptive designs (n = 10), and cohort designs (n = 2). From these we identified 17 unique policy options for governments to reduce the human use of antimicrobials. Many studies evaluated public awareness campaigns (n = 17) and antimicrobial guidelines (n = 13); however, others offered different policy options such as professional regulation, restricted reimbursement, pay for performance, and prescription requirements. Identifying these policies can inform the development of future policies and evaluations in different contexts and health systems. Limitations of our study include the possible omission of unpublished initiatives, and that policies not evaluated with respect to antimicrobial use have not been captured in this review.
CONCLUSIONS: To our knowledge this is the first study to provide policy makers with synthesized evidence on specific government policy interventions addressing AMR. In the future, governments should ensure that AMR policy interventions are evaluated using rigorous study designs and that study results are published.
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MEDBOX Issue Brief 26. Cholera is an acute diarrhoeal infection caused by eating or drinking food or water that is contaminated with the
bacterium Vibrio cholerae. Cholera remains a global threat to public health and is an indicator of inequity and lack of
social development. Researchers have esti...mated that every year, there are 1.3 to 4.0 million cases of cholera, and 21
000 to 143 000 deaths worldwide due to the infection.
However, cholera remains a neglected and underreported disease. Many cases are not recorded due to limitations in
surveillance systems and fears of potential impact on trade or tourism.
Today cholera affects 47 countries across the globe. Almost every developing country faces cholera outbreaks or
the threat of cholera. Major ongoing outbreaks are being reported from Afghanistan, Bangladesh, Democratic
Republic of Congo, Ethiopia and Nigeria. Major outbreaks are currently in Syria and Haiti.
Therefore, MEDBOX decided to produce issue briefs on cholera and available resources in Arabic, English and
French.
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Volume 2016 | Article ID 5310718 | https://doi.org/10.1155/2016/5310718. Buruli ulcer (BU) is a necrotizing cutaneous infection caused by Mycobacterium ulcerans. Early diagnosis is crucial to prevent morbid effects and misuse of drugs. We review developments in laboratory diagnosis of BU, discuss li...mitations of available diagnostic methods, and give a perspective on the potential of using aptamers as point-of-care.
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An estimated 1.3 billion people – or 16% of global population worldwide – experience a significant disability today. Persons with disabilities have the right to the highest attainable standard of health as those without disabilities. However, the WHO Global report on health equity for persons w...ith disabilities demonstrates that while some progress has been made in recent years, the world is still far from realizing this right for many persons with disabilities who continue to die earlier, have poorer health, and experience more limitations in everyday functioning than others. These poor health outcomes are due to unfair conditions faced by persons with disabilities in all facets of life, including in the health system itself. Countries have an obligation under international human rights law to address the health inequities faced by persons with disabilities. Furthermore, the Sustainable Development Goals and global health priorities will not progress without ensuring health for all.
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An estimated 1.3 billion people – or 16% of global population worldwide – experience a significant disability today. Persons with disabilities have the right to the highest attainable standard of health as those without disabilities. However, the WHO Global report on health equity for persons w...ith disabilities demonstrates that while some progress has been made in recent years, the world is still far from realizing this right for many persons with disabilities who continue to die earlier, have poorer health, and experience more limitations in everyday functioning than others. These poor health outcomes are due to unfair conditions faced by persons with disabilities in all facets of life, including in the health system itself. Countries have an obligation under international human rights law to address the health inequities faced by persons with disabilities. Furthermore, the Sustainable Development Goals and global health priorities will not progress without ensuring health for all.
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As of 12 December 2022, over 645 million people worldwide have been diagnosed with COVID-19, with over 6.6 million deaths (4).
The Omicron variant, which emerged in late November 2021, and its subvariants, are now the dominant circulating viruses, contributing to the ongoing surge in several countr...ies (4). Vaccination has substantially reduced case numbers and hospitalizations in many countries,but limitations in global access to vaccines mean that many populations, including those in low- and middle-income countries, remain vulnerable. Even in vaccinated individuals, uncertainties remain about duration of protection and efficacy, and the degree of crossprotection with new variants.
There remains a need for more effective treatment and management for those affected by COVID-19. The pandemic – and the
explosion of both research and misinformation – has highlighted the need for trustworthy, accessible and regularly updated living
guidelines to place emerging findings into context and provide clear recommendations for clinical practice
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Based on categories related to structure, content, language, and illustrations, the present study provides an evaluation of the quality of educational materials on leishmaniasis available to health services in Brazil. The 18 publications evaluated consisted of four handbooks, four guided studies, fo...ur booklets, and six leaflets. Of the total publications assessed, nine were produced by the Brazilian National Health Foundation (FUNASA), five by State and Municipal Health Departments jointly with FUNASA, and one by the Pan-American Health Organization. The evaluations were also performed by three professionals: a physician specialized in leishmaniasis, a parasitologist, and an information/communications expert. The publications failed to specify key items such as target public, objective, and bibliography. The illustrations, especially in the booklets and leaflets, failed to clarify the text, portrayed biased concepts, and omitted credits and scale. According to this study, informative materials on leishmaniasis distributed in Brazil present major limitations which jeopardize the quality of information they contain.
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This facilitator’s manual is designed to support the implementation of the Dengue Clinical Management training course. The guide contains specific instructions for the facilitator and provides:
- a detailed description of the clinical course of dengue illness, which reflects the dynamic and sys...temic nature of dengue that has crucial bearing on the patient’s management;
- a detailed description of the basic pathophysiological changes of severe dengue (i.e. plasma leakage and hypovolaemia/shock) and guidance on the recognition of these changes and appropriate action of management;
- a brief discussion on WHO classification (1997) and its limitations;
- guidance on the differential diagnoses that can be confused with dengue or vice versa; they were described according to the stage of disease;
- a more focused guide on the disease monitoring in accordance with the dynamic changes as the disease progresses;
- emphasis on the importance of monitoring the plasma leakage (haemodynamic status of the patient, clinical signs of plasma leakage and haematocrit);
- a clearer algorithm for fluid management in cases of severe dengue; and
- emphasis on the importance of recognizing or suspecting significant occult bleed. Keep the facilitator’s manual with you each day as you prepare and deliver the information. Use it as a reference when delivering classroom presentations, but avoid reading directly from it during sessions.
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Chagas disease is a neglected tropical disease caused by the protozoan parasite Trypanosoma cruzi. It is a significant public health problem, affecting millions of people worldwide. And although it was described 110 years ago, only two old nitroheterocyclic drugs, benznidazole and nifurtimox, are cu...rrently available for the treatment of Chagas disease and both have several limitations. Besides the clear unmet medical need, many challenges preclude the development of new treatments, some of them related to a lack of understanding of the pathophysiology of the disease and parasite-host interactions. New knowledge and tools are becoming available, but the number of new chemical entities progressing through the preclinical pipeline is inadequate. Therefore, it is still uncertain whether safe, effective and accessible new drugs will be available in the near future. The Chagas disease research community must commit to even greater collaboration to ensure that patients eventually benefit from better treatments.
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The recurrence of severe climate events combined with economic, social, and institutional fragilities leave El Salvador in an utterly critical humanitarian situation and highly vulnerable. Located in a disaster-prone subregion, El Salvador is among the 20 countries at the highest risk of disasters w...orldwide. The successive hydrometeorological hazards that impacted El Salvador over the past two years include tropical storms Amanda and Cristóbal and hurricanes Eta, Iota, and,
more recently, Julia. These storms profoundly affected the lives and livelihoods of almost 900 000 people and significantly disrupted health services, especially at the first level of care. In addition, the country’s exposure to earthquakes, floods, and droughts is also constant. Infrastructural and institutional limitations to deal with emergencies and
low capacity to respond to adverse events are an additional challenge, which leaves the population—particularly the most vulnerable—at even higher risk.
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This publication articulates the WHO Botswana Country Office’s focus and investment needs for the biennium 2022–2023, building on achievements, networks, and partnerships fostered in 2020-2021.
As the leading health authority within the United Nations system in Botswana, the WHO Country Offi...ce has been at the forefront of supporting the government to improve health since 1996. The WHO Country Office supports the Ministry of Health in realizing the health goals the Government of Botswana defines. Acknowledging that as an upper middle-income country, Botswana provides the bulk of its resources for implementing health programmes, the WHO directly brings technical expertise to the table by collaborating with relevant partners. Where the country office has limitations in terms of human resources with the requisite expertise to answer the country’s needs, the regional level and headquarters of the WHO will be mobilized to provide the necessary support.
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Substantial progress in the fight against HIV has been made over the past decade. Advances in HIV prevention, testing, and treatment have been matched by declines in HIV incidence and HIV-related deaths. The success of Botswana reaching the 95-95-95 targets, despite resource limitations, points to a... hopeful future. However, the recent publication of In Danger: UNAIDS Global AIDS Update 2022, the UNAIDS annual report, paints a sobering picture of the fragility of these gains.
Stagnating financing for the HIV response, alongside continued global inequities, and the impact of the COVID-19 pandemic, jeopardises progress. Current projections indicate that neither the UNAIDS 2025 95-95-95 targets nor the goal of ending the AIDS
epidemic by 2030 will be met.
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