Chagas disease is currently endemic and also predicted to be at increased transmission risk under future climate change scenarios. Similarly, an expansion of areas in the United States at increased risk for Chagas disease transmission is also expected over the next several decades under climate chan...ge scenarios. Of particular interest is the predicted northern shift of triatomine species to central regions of the United States with historically unsuitable climates for T. cruzi vectors. The weight of evidence regarding the influences climate change may pose on T. cruzi vector species distributions demonstrates the sensitivity of Chagas disease transmission to future climate variability. In order to advance forecasts for the impact climate change may have on Chagas disease transmission in the Americas, it is imperative to
further develop, utilize, and perhaps combine predictive species distribution modeling approaches that integrate accurate, long term data on climate variables, vector species distributions, Chagas disease incidence, as well as other socio-ecological variables.
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Confronted with the important issue of patient safety, in 2002 the Fifty-fifth World Health Assembly adopted a resolution urging countries to pay the closest possible attention to the problem and to strengthen safety and monitoring systems. In May 2004, the Fifty-seventh World Health Assembly approv...ed the creation of an international alliance as a global initiative to improve patient safety. The World Alliance for Patient Safety was launched in October 2004 and currently has its place in the WHO Patient Safety programme included in the Information, Evidence and Research Cluster.
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The primary audience for the guideline is health programme managers, including governmental and non-governmental organizations, and policy makers who are responsible for designing maternal, newborn and child health programmes, primarily in low-income settings. The guideline is also aimed at health p...roviders and teaching institutions, to increase knowledge of interventions. Development programmes and organizations supporting women’s empowerment and rights will also find this guideline of use.
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Terminology used to describe the transmission of pathogens through the air varies across scientific disciplines, organizations and the general public. While this has been the case for decades, during the coronavirus disease (COVID-19) pandemic, the terms ‘airborne’, ‘airborne transmission’ a...nd ‘aerosol transmission’ were used in different ways by stakeholders in different scientific disciplines, which may have contributed to misleading information and confusion about how pathogens are transmitted in human populations.
This global technical consultation report brings together viewpoints from experts spanning a range of disciplines with the key objective of seeking consensus regarding the terminology used to describe the transmission of pathogens through the air that can potentially cause infection in humans.
This consultation aimed to identify terminology that could be understood and accepted by different technical disciplines. The agreed process was to develop a consensus document that could be endorsed by global agencies and entities. Despite the complex discussions and challenges, significant progress was made during the consultation process, particularly the consensus on a set of descriptors to describe how pathogens are transmitted through the air and the related modes of transmission. WHO recognizes the important areas where consensus was not achieved and will continue to address these areas in follow-up consultations.
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Weekly epidemiological record 18 July 2025
This report summarizes application of the SAFE strategy against trachoma during 2024. It includes estimates of the global population at risk of trachoma blindness based on district-by-district data submitted to WHO by national programmes.
This summary assesses the current state of evidence on each approach in tabular form, providing: the definition and objectives; evidence of effectiveness; operational considerations (e.g., training, staffing, and logistics); cost considerations and evidence on cost-effectiveness; operational success...es and challenges; and areas for future research and learning. This document is not intended to endorse any particular approach. Rather, it aims to objectively present the state of the existing evidence on each approach, so as to inform decision-making among practitioners looking to further test, refine and implement such approaches.
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The new WHO Guidelines on Sanitation and Health summarize the evidence on the effectiveness of a range of sanitation interventions and provide a comprehensive framework for health-protecting sanitation, covering policy and governance measures, implementation of sanitation technologies, systems and b...ehavioural interventions, risk-based management, and monitoring approaches. Critically, the guidelines articulate the role of the health sector in maximizing the health impact of sanitation interventions.
The guidelines also identify gaps in the evidence-base to guide future research efforts to improve the effectiveness of sanitation interventions.
(French, Spanish, Russian, Arabic in production)
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A global Review of evidence and practice
An Overview of Current Evidence with Recommendations for Strengthening Community Health Worker Programs to Accelerate Progress in Achieving the Health-related Millennium Development Goals
The results of the report clearly show that in 2020, a year dominated by the emergence of COVID-19 and its associated health and economic crises, governments around the world rose to the challenge. Sharp increases in government spending on health at all country income levels underpinned the rise in ...health spending to a new high of US $9 trillion (approximately 11% of global GDP). Government health spending generally increased and offset declines in out-of-pocket spending. Importantly, the rise in government health spending was part of a much broader fiscal response to the pandemic. In high income and upper-middle income countries social protection spending also increased sharply in as governments attempted to cushion populations from the economic impacts of COVID-19. In contrast to health and social protection, growth in education spending was relatively subdued. Countries face the further challenge of sustaining increased public spending on health and other social sectors in the face of deteriorating macroeconomic conditions and rising debt servicing. This also includes the challenge of sustaining external support for low income countries, which is essential for reducing ensuring poverty, ensuring access to health services and strengthening pandemic preparedness.
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The global tripartite self-assessment survey of country progress in addressing antimicrobial resistance (AMR) is a component of a broader approach for monitoring and evaluation of the global action plan on AMR. This report analyses the results of the second tripartite self-assessment survey
Las infecciones del sitio quirúrgico (ISQ) constituyen una de las Infecciones Asociadas al Cuidado de la Salud (IACS) más frecuentes que ponen en riesgo a los pacientes llevando muchas veces al fracaso del procedimiento quirúrgico. Con una incidencia mucho mayor en países de medianos y bajos ing...resos, representa un desafío de la práctica médica cotidiana que compromete la salud y la seguridad de los pacientes. La indicación de profilaxis primaria con antibióticos en relación a los procedimientos invasivos, tiene como objetivo disminuir la incidencia de infecciones con la consecuente disminución de la morbimortalidad debiendo utilizarse únicamente en aquellos procedimientos en los que hay evidencia de efectividad. Cabe destacar que la indicación inadecuada, tiene potenciales efectos adversos tales como infecciones por Clostridium difficile, emergencia de resistencia
bacteriana, reacciones adversas a drogas e incremento de los costos en salud.
La profilaxis antibiótica como complemento de una buena técnica quirúrgica, es una medida costo efectiva de prevención de las ISQ representando alrededor del 30% de la indicación de antibióticos entre los pacientes hospitalizados. Dado que en algunos estudios el uso inapropiado de antibióticos se ve reflejado en el 40 al
80% de las indicaciones médicas, desde la Comisión de Infecciones Asociadas al Cuidado de la Salud y Seguridad del Paciente de SADI hemos realizado una actualización de la evidencia disponible. Este documento es una acción complementaria al consenso “Prevención de Infección del Sitio Quirúrgico” realizado entre SADI y el Instituto Nacional de Epidemiología “J. Jara” durante el Congreso de SADI 2015.
La posibilidad de contar con una guía actualizada de profilaxis quirúrgica adaptada a nuestro medio, constituye una herramienta de uso cotidiano por parte de los profesionales del equipo quirúrgico que permite la optimización de la utilización de fármacos restringiendo así la emergencia y diseminación de la resistencia bacteriana. Sin duda esperamos que pueda ser de utilidad para el equipo de salud.
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Hand hygiene is vital for safe health care delivery, yet practices at the point of care remain suboptimal worldwide. A comprehensive research agenda is therefore necessary to improve our understanding of factors influencing hand hygiene behaviour and to strengthen appropriate interventions. This age...nda will provide insightful ideas for researchers to focus their projects and funding proposals and will direct donors towards the areas of hand hygiene evidence that require urgent support and innovation. It will also guide decision-makers and stakeholders at the national and international level and support country efforts in updating and strengthening hand hygiene promotion programmes. Global collaboration and investment in hand hygiene research remain essential to promote safe and effective care worldwide.
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Mycetoma is a chronic infectious disease of the subcutaneous tissue with a high morbidity. This disease has been reported from countries between 30°N and 15°S since 1840 but the exact burden of disease is not known. It is currently unknown what the incidence, prevalence and the number of reported ...cases per year per country is. In order to estimate what the global burden of mycetoma is, a meta-analysis was performed. In total 50 studies were included, which resulted in a total of 8763 mycetoma cases. Most cases were found in men between 11 and 40 years of age. The foot was most commonly affected.
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The 2014–2015 Ebola epidemic in western Africa was the longest and most deadly Ebola epidemic in history, resulting in 28,616 cases and 11,310 deaths in Guinea, Liberia, and Sierra Leone. The Ebola virus has been known since 1976, when two separate outbreaks were identified in the Democratic Repub...lic of Congo (then Zaire) and South Sudan (then Sudan). However, because all Ebola outbreaks prior to that in West Africa in 2014–2015 were relatively isolated and of short duration, little was known about how to best manage patients to improve survival, and there were no approved therapeutics or vaccines. When the World Heath Organization declared the 2014-2015 epidemic a public health emergency of international concern in August 2014, several teams began conducting formal clinical trials in the Ebola affected countries during the outbreak.
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This Rapid Advice Guideline updates the Interim Guidance on the “Assessment of infants with microcephaly in the context of Zika virus” published in February 2016 (WHO/ZIKV/MOC/16.3). The recommendations provides guidance on the screening, clinical assessment, neuroimaging, laboratory investigati...on and follow-up of children born to women living in areas of Zika virus transmission. The Guideline summarises the evidence base and rationale in support of the recommendations and expands the scope to address complications beyond microcephaly and what is now referred to as the congenital Zika virus syndrome
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Haiti, one of the poorest countries in the world, was devastated by an earthquake in 2010. The disaster uncovered the realities of a non-existent mental health care system with only ten psychiatrists nationwide. Attempts were made to assess the increased prevalence of mental illness, likely due to t...he trauma to which many were exposed. Several interventions were carried out with aims to integrate mental health into primary health care services. The interplay between socio-cultural beliefs and health (both mental and physical) in Haiti has been widely commented upon by both foreign aid and local caregivers. Observations frequently highlight barriers to the willingness of patients to seek care and to their acceptance of biomedicine over traditional Vodou beliefs. The perception of Haitian beliefs as barriers to the availability and acceptance of mental health care has intensified the difficulty in providing effective recommendations and interventions both before and after the earthquake. Argued in this review is the importance of considering the interactions between socio-cultural beliefs and mental health when developing models for the prevention, screening, classification and management of mental illness in Haiti. These interactions, especially relevant in mental health care and post-disaster contexts, need to be acknowledged in any healthcare setting. The successes and failures of Haiti’s situation provide an example for global consideration.
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