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Diets are changing everywhere, and the burden of disease associated with unhealthy diets is a worldwide concern. Measurement and monitoring of diets across countries and population groups is critical. However, there are no harmonized metrics for tracking how the healthfulness of diets around the wor
...
ld is evolving.
This report assesses the validity, usefulness and fitness for purpose of existing healthy diet metrics as global and national monitoring indicators, presents a comparative assessment of selected healthy diet metrics and discusses priorities and opportunities to improve diet monitoring. This report is an important first step of the Healthy Diets Monitoring Initiative to respond to the need for developing healthy diets metrics for assessing and monitoring diets at national and global level.
more
Despite the development of point-of-care diagnostic tests for syphilis, chlamydia, gonorrhoea, and trichomoniasis, none comply with all WHO criteria. This analysis overviews landscape analyses of point-of-care diagnostic technologies for Chlamydia trachomatis, Neisseria gonorrhoeae, Trichomonas vagi
...
nalis and syphilis, available and in the pipeline. The target audience for the target product profiles is broad and includes clinicians, researchers working on diagnostics, laboratory experts, including, microbiologists and virologists, public health experts, epidemiologists, developers, and representatives for manufactures, including biotech engineers, policy-and decision-makers as well as representatives from regulatory bodies and agencies, donor agencies and international organizations.
more
This guideline provides updated, evidence-informed guidance on the percentage of total fat in the diet to reduce the risk of unhealthy weight gain.
This guideline is intended for a wide audience involved in the development, design and implementation of policies and programmes in nutrition and pub
...
lic health. This guideline includes a recommended level of total fat intake which can be used by policy-makers and programme managers to address various aspects of dietary fat in their populations through a range of policy actions and public health interventions.
The guidance in this guideline replaces previous WHO guidance on total fat intake, including that from the 1989 WHO Study Group on Diet, Nutrition and the Prevention of Chronic Diseases and the 2002 Joint WHO/FAO Expert Consultation on Diet, Nutrition and the Prevention of Chronic Diseases. The guidance in this guideline should be considered in the context of that from other WHO guidelines on healthy diets.
more
World Humanitarian Data and Trends presents global- and country-level data-and-trend analysis about humanitarian
crises and assistance. Its purpose is to consolidate this information and present it in an accessible way, providing policymakers, researchers and humanitarian practitioners with an evid
...
ence base to support humanitarian policy decisions and provide context for operational decisions.
more
Background
Noncommunicable diseases are major contributors to morbidity and mortality worldwide. Modifying the risk factors for these conditions, such as physical inactivity, is thus essential. Addressing the context or circumstances in which physical activity occurs may promote physical activity a
...
t a population level. We assessed the effects of infrastructure, policy or regulatory interventions for increasing physical activity.
Methods
We searched PubMed, Embase and clinicaltrials.gov to identify randomised controlled trials (RCTs), controlled before-after (CBAs) studies, and interrupted time series (ITS) studies assessing population-level infrastructure or policy and regulatory interventions to increase physical activity. We were interested in the effects of these interventions on physical activity, body weight and related measures, blood pressure, and CVD and type 2 diabetes morbidity and mortality, and on other secondary outcomes. Screening and data extraction was done in duplicate, with risk of bias was using an adapted Cochrane risk of bias tool. Due to high levels of heterogeneity, we synthesised the evidence based on effect direction.
Results
We included 33 studies, mostly conducted in high-income countries. Of these, 13 assessed infrastructure changes to green or other spaces to promote physical activity and 18 infrastructure changes to promote active transport. The effects of identified interventions on physical activity, body weight and blood pressure varied across studies (very low certainty evidence); thus, we remain very uncertain about the effects of these interventions. Two studies assessed the effects of policy and regulatory interventions; one provided free access to physical activity facilities and showed that it may have beneficial effects on physical activity (low certainty evidence). The other provided free bus travel for youth, with intervention effects varying across studies (very low certainty evidence).
Conclusions
Evidence from 33 studies assessing infrastructure, policy and regulatory interventions for increasing physical activity showed varying results. The certainty of the evidence was mostly very low, due to study designs included and inconsistent findings between studies. Despite this drawback, the evidence indicates that providing access to physical activity facilities may be beneficial; however this finding is based on only one study. Implementation of these interventions requires full consideration of contextual factors, especially in low resource settings.
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A sanitary inspection is a simple, on-site evaluation (traditionally using a checklist) to help identify and support the management of priority risk factors that may lead to contamination of a drinking-water supply. Sanitary inspections are a well-established and widely-applied practice. They can su
...
pport water safety planning, and in some contexts, may be a simplified alternative to water safety plans.
This publication presents the World Health Organization’s (WHO’s) sanitary inspection packages. These packages update the sanitary inspection forms in WHO’s 1997 Guidelines for drinking-water quality. Volume 3: surveillance and control of community supplies. With more than 25 years of practical experience with the application of sanitary inspections, these packages have been developed from a comprehensive evidence review and established good practices.
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The document is a summary report by the World Health Organization (WHO) Regional Office for the Eastern Mediterranean, focusing on a capacity-building workshop held in Abu Dhabi in 2019. The workshop addressed the management and care of substance us
...
e disorders, aiming to improve technical and managerial capacities in areas such as policy development, treatment services, prevention, monitoring, and international collaboration. Participants included representatives from 12 countries, WHO collaborating centers, and other UN agencies.
more
For thousands of years, humans have been using wildlife for commercial and subsistence purposes. Wildlife trade takes place at local, national and international levels, with different forms of wildlife, such as live animals, partly processed products and finished products. Wildlife is a vital source
...
of safe and nutritious food, clothing, medicine, and other products, in addition to having religious and cultural value. Wildlife trade also contributes to livelihoods, income generation and overall economic development.
However, wildlife trade can have detrimental effects on species conservation, depleting natural resources, impoverishing biodiversity and degrading ecosystems (Morton et al., 2021). Wildlife trade, whether legal or illegal, regulated or unregulated, can pose threats to animal health and welfare. It also presents opportunities for zoonotic pathogens to spill over between wildlife and domestic animals, and for diseases to emerge with serious consequences for public or animal health and profound economic impacts (IPBES, 2020; Swift et al., 2007; Smith et al., 2009; Gortazar et al., 2014; Stephen, 2021; Stephen et al., 2022; FAO, 2020). The risk of pathogen spillover and disease emergence is amplified with increased interaction between humans, wildlife and domestic animals. The risk of pathogen spillover has also been exacerbated by climate change, intensified agriculture and livestock production, deforestation, and other land-use changes. Wildlife trade is also a risk to ecosystem biodiversity via the introduction of invasive species (Wikramanayake et al., 2021). Therefore, increased effort must be put into understanding the potential consequences of the wildlife trade, mapping and analysing the adjacent risks, and implementing strategies to manage those risks. Reducing wildlife-trade risks not only helps to limit disease but also minimises the negative effects of invasive species. Between 1960 and 2021, invasive alien species caused estimated cumulative damage of around 116 billion euros across 39 countries in the European Union alone, despite strict import regulations (Haubrock et al., 2021). The effect of invasive species is extremely apparent.
more
World Health Organization. (2022). Toolkit for developing a multisectoral action plan for noncommunicable diseases: module 4: developing an implementation plan.
Background
Asthma remains highly prevalent, with more severe symptoms in low-income to middle-income countries (LMICs) compared with high-income countries. Identifying risk factors for severe asthma symptoms can assist with improving outcomes. We aimed to determine the prevalence, severity and ris
...
k factors for asthma in adolescents in an LMIC.
Methods
A cross-sectional survey using the Global Asthma Network written and video questionnaires was conducted in adolescents aged 13 and 14 from randomly selected schools in Durban, South Africa, between May 2019 and June 2021.
Results
A total of 3957 adolescents (51.9% female) were included. The prevalence of lifetime, current and severe asthma was 24.6%, 13.7% and 9.1%, respectively. Of those with current and severe asthma symptoms; 38.9% (n=211/543) and 40.7% (n=147/361) had doctor-diagnosed asthma; of these, 72.0% (n=152/211) and 70.7% (n=104/147), respectively, reported using inhaled medication in the last 12 months. Short-acting beta agonists (80.4%) were more commonly used than inhaled corticosteroids (13.7%). Severe asthma was associated with: fee-paying school quintile (adjusted OR (CI)): 1.78 (1.27 to 2.48), overweight (1.60 (1.15 to 2.22)), exposure to traffic pollution (1.42 (1.11 to 1.82)), tobacco smoking (2.06 (1.15 to 3.68)), rhinoconjunctivitis (3.62 (2.80 to 4.67)) and eczema (2.24 (1.59 to 3.14)), all p<0.01.
Conclusion
Asthma prevalence in this population (13.7%) is higher than the global average (10.4%). Although common, severe asthma symptoms are underdiagnosed and associated with atopy, environmental and lifestyle factors. Equitable access to affordable essential controller inhaled medicines addressing the disproportionate burden of asthma is needed in this setting.
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The WHO Global tuberculosis report 2024 provides a comprehensive and up-to-date assessment of the TB epidemic, and of progress in prevention, diagnosis and treatment of the disease, at global, regional and country levels. This is done in the context of global TB commitments, strategies and targets.
Safe sanitation is essential for health, from preventing infections to improving and maintaining mental and social
well-being. Lack of adequate sanitation contributes to diarrhoeal diseases, parasitic infections, and undernutrition, as
well as pos
...
ing significant risks and causing anxiety, especially for women and girls. Achieving universal access to safe
sanitation, which protects health, privacy, and dignity, is a global development goal and a recognized basic human right.
more
The objective of this manual is to guide managers of schistosomiasis and soil-transmitted helminthiases control programmes towards the elimination of these diseases as public health problems informed by evidence generated through monitoring and eval
...
uation of these programmes. The manual complements the objectives outlined by the World Health Organization (WHO) in the road map for neglected tropical diseases 2021–2030 (“the road map”) (WHO, 2020a) and the monitoring and evaluation framework (WHO, 2021a), a companion document to the road map.
more
Zambia has completed the implementation of the National TB Strategic Plan (2017-2021) that set in motion the TB elimination agenda in Zambia through coordinated and accelerated TB response. During this period, the National TB and Leprosy Programme (NTLP) registered tremendous success.
The NTLP is
...
poised to attain the ambitious goal pronounced by the government of eliminating TB by 2030, in line with the Sustainable Development Goals (SDGs) and the World Health Organization End TB Strategy. The programme exponentially increased TB notifications from as low as 35,922 people with TB in 2018 to 40,726 in 2020 and in 2021 the TB notifications rose to 50,825 (a 25% increase against 2020 performance). The NTLP also registered incredible success in sustaining high TB Preventive Treatment (TPT) initiations among persons living with HIV and a high TB treatment success rate among drug-susceptible TB cases. New and relapse TB notifications in children below 15 years increased by 43%, from 2,724 in 2020 to 3,890 in 2021. TB notifications ratio between children aged 0-4 and 5-14 was 0.9, an improvement from what we achieved in 2018 (the ratio was 0.7). The proportion of TB patients who are HIV positive continued to decrease, reaching 34% in 2021 from 39% in 2020. Sustained increases in TB notifications, treatment success rate, and TPT initiations have resulted in a rapid decrease in the TB incidence rate that reached 307 per 100,000 population in 2021 against a rate of 391 in 2015.
more
Trachoma is the world’s leading infectious cause of blindness. It is one of 18 neglected
tropical diseases (NTDs) that affect over one billion of the world’s poorest people.
The purpose of the guideline is to provide information to stakeholders on the necessary requirements for a complete prequalification dossier for insecticide-treated nets (ITNs). Its aim is to establish the baseline for dossier requirements which are necessary to assess ITN products for the purposes
...
of prequalification, describe the data requirements for fulfilling each dossier module, and to provide standardized information for applicants and testing facilities generating data for ITN prequalification dossiers. The document is supported by implementation guidance documents which provide specific information and considerations for how applicants may approach the generation of supporting information and compilation of a complete product dossier.
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This training module on malaria case management has been developed to support the staff involved in malaria control and elimination programmes in the effective organization of malaria diagnosis and case management services
This toolkit is a comprehensive set of practical tools and resources designed to support country-level risk communication and community engagement (RCCE) practitioners, decision-makers, and partners to plan and implement readiness and response activities for yellow fever outbreaks. The toolkit conta
...
ins: information about yellow fever; RCCE considerations for how to approach key issues during yellow fever outbreaks; tools for understanding the context in which yellow fever outbreaks occur; methods for collecting data to inform strategy development and bring evidence into planning and implementation of activities; guidance to support vector control and immunization campaigns; and links to existing RCCE tools and training. It is one of a suite of toolkits on RCCE readiness and response to a range of disease and response areas.
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This document provides technical guidance for manufacturers seeking World Health Organization (WHO) prequalification of in vitro diagnostic devices (IVDs) for malaria, with a focus on rapid diagnostic tests (RDTs) for symptomatic patients. It summar
...
ises the minimum performance requirements, including analytical and clinical performance standards, and emphasises considerations relating to diverse specimen types, testing environments and user populations in low- and middle-income countries. The guidance is aligned with the criteria and prequalification processes of the WHO Global Malaria Programme, while clarifying that demonstration of clinical utility is outside the scope of prequalification.
more
This document provides technical guidance for manufacturers seeking World Health Organization (WHO) prequalification of in vitro diagnostic devices (IVDs) for malaria, with a focus on rapid diagnostic tests (RDTs) for symptomatic patients. It summar
...
ises the minimum performance requirements, including analytical and clinical performance standards, and emphasises considerations relating to diverse specimen types, testing environments and user populations in low- and middle-income countries. The guidance is aligned with the criteria and prequalification processes of the WHO Global Malaria Programme, while clarifying that demonstration of clinical utility is outside the scope of prequalification.
more
