WHO, as the coordinating authority on international health, supports countries in protecting public health through evidence-based policies and actions. Considering the significant health burden and the multiple potential benefits of interventions, the WHO Air Quality, Energy and Health Unit aims to ...support countries by providing evidence, building institutional capacity and leveraging the “health argument” to convene sectors to tackle air pollution and accelerate energy access.
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Policy Brief. Good practice statement: When planning and implementing a response for HIV, viral hepatitis and sexually transmitted diseases (STIs), policy-makers and providers should be aware that
counselling behavioural interventions aimed to change behaviours to reduce risks associated
with th...ese infections for key populations have not been shown to have an effect on HIV, viral
hepatitis and STIs’ incidence nor on risk behaviour such as condom use and needle/syringe
sharing. Counselling and information sharing, not aimed at changing behaviours, can be a key
component of engagement with key populations and, when provided, it should be in a nonjudgemental manner, alongside other prevention interventions and with involvement of peers
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The health impacts of climate change are no longer a distant threat. They are being felt here and now and becoming more extreme.
To address these threats, the WHO Asia-Pacific Centre for Environment and Health in the Western Pacific Region (ACE) was established in 2019 through a partnership with ...the Seoul Metropolitan Government, the Ministry of Climate, Energy and Environment of the Republic of Korea and the World Health Organization (WHO).
The Centre’s mission is to strengthen cooperation and drive action where environment and health meet. This focus on environmental health has created a strong foundation for system-wide change.
This strategic plan builds directly on that work. Over the next five years, the Centre will expand its reach, supporting countries to take practical, systems-based action that ensures healthier people, healthier environments and a healthier planet.
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Addressing TB comorbidities and risk factors is central to the World Health Organization (WHO) End TB Strategy. These guidelines consolidate the latest WHO recommendations on TB and key comorbidities. The guidelines are a living document and will include dedicated sections for each key TB comorbidit...y or health-related risk factor. The first edition focused on HIV-associated TB, updating the WHO policy on collaborative TB/HIV activities. This second edition expands on the previous edition and consolidates new and existing recommendations on interventions to address undernutrition in people with TB, to provide food assistance to households of people with TB in food-insecure settings, and to screen for TB among those who are undernourished or food insecure.
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PHSM are vital in reducing the risk and scale of infectious disease transmission and lowering hospitalization and deaths. Examples include contact tracing, quarantine and isolation, mask use, ventilation, school or workplace measures, mobility restrictions and travel requirements.
While these mea...sures are essential, decision-making on PHSM becomes particularly complex during rapidly evolving health emergencies, with incomplete information and under significant public and political pressure, especially when the pathogen is novel or poorly understood. In such contexts, guidance needs to be agile and responsive, developed and adapted based on emerging evidence and shifting epidemiological patterns. Decision-makers are frequently confronted with difficult trade-offs, having to balance measures that are:
─ effective but socially disruptive;
─ cost-effective but logistically burdensome;
─ beneficial for public health but economically disruptive; or
─ practical but inequitable or unethical
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On 4 September 2025, the Ministry of Health of the Democratic Republic of the Congo (DRC) declared an outbreak of Ebola Virus Disease (EVD) in Kasai Province, following confirmation of Zaire ebolavirus by the National Institute of Biomedical Research (INRB) in Bulape and Mweka Health Zones. As of 19... September, there have been 48 total cases (38 confirmed, 10 probable) with 31 deaths (21 confirmed, 10 probable) and a CFR of 64.5%. Among laboratory confirmed cases, 16 deaths were recorded (CFR: 45.7%). Four deaths occurred among health workers, underscoring the risk of nosocomial transmission. Most cases (39.7%) are among adults aged 20 years and above, in a densely populated, remote, and under-resourced area.
The outbreak is driven by multiple risk factors, including transmission in health facilities with limited infection prevention and control (IPC) measures and personal protective equipment (PPE), incomplete contact tracing, delayed detection, and unsafe burial practices. High population mobility between Bulape and Tshikapa, reliance on traditional healers, and the concurrent mpox outbreak are further straining the fragile health system and increasing the risk of geographic spread.
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The WHO’s Early Warning, Alert and Response System (EWARS) is a tool used in emergencies such as conflicts or natural disasters to quickly detect and respond to disease outbreaks. It helps set up simple and reliable surveillance systems even in places without stable electricity or internet, using ...kits that include phones, laptops, and solar chargers. EWARS supports national health authorities during crises and can later be integrated into the regular health surveillance system.
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The WHO handbook “Epidemiological Data Analysis for the Early Warning Alert and Response Network (EWARN) in Humanitarian Emergencies” explains how to collect, analyse, interpret, and share health data during crises such as conflicts or natural disasters. It is a practical guide for health and su...rveillance officers to detect disease outbreaks early and guide quick public health responses. The document outlines steps for managing data at different levels (local, regional, national), analysing disease trends by time, place, and person, and using indicators to monitor outbreak risks. It also provides methods for interpreting and communicating results clearly to decision-makers to support effective health interventions in emergencies.
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Building on the WHO guidelines for disclosure to children up to age 12 in 2011, this implementation guidance provides evidence on existing interventions that support children and adolescents living with HIV in the process of disclosure. It includes interventions that focuses on safe disclosure, as w...ell as supporting children and adolescents with onwards disclosure. Specifically, this brief collates existing interventions via a scoping review; assesses key interventions through a realist evaluation lens, identifying what works, for whom, and in what contexts; and highlights emerging considerations, key gaps, and key actions.
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This brief report summarizes recent information on HIV drug resistance (HIVDR) in the era of integrase-strand transfer inhibitors (INSTI) for HIV prevention and treatment.
Adolescents and young adults aged 10-24 remain underserved in the global response against HIV. Combination prevention, treatment and care programmes use a mix of evidence-based interventions to meet the current HIV prevention needs of adolescents and young adults. However, there needs to be a focus ...on priority interventions that are evidence-based, practical, contextual and sustainable. This document highlights interventions and recommendations that have passed through the evidence-based lens of the WHO.
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Strengthening global health security to protect the world against future epidemics and pandemics requires well-tested and decentralized capacities for the local detection and rapid containment of outbreaks of infectious disease. For such capacities to translate into effective response actions, ind...ividuals and teams must be well connected and coordinated, despite differences in the size, geography, technical focus or constituency of their parent institution.
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The future is inherently uncertain, and while we hope to avoid another pandemic, hope alone is not a strategy. To ensure we are better prepared, it is important to proactively explore plausible futures through structured foresight exercises.
The PRET simulation exercise packages are a comprehensive set of resources designed to support countries and different stakeholders in conducting tailored exercises for respiratory pathogen preparedness and response planning. These packages are versatile and adaptable, making them suitable for use b...y countries, as well as public and private institutions in diverse settings.
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Preparing for the next epidemic or pandemic begins with effective planning. The Pandemic Planning Learning Module 1 (PPLM 1) is a foundational resource designed to build resilience and enhance preparedness by equipping pandemic planning teams with the practical skills needed to respond to emerging h...ealth threats. Employing an adult-based and experiential learning approach (simulation-based), the purpose of PPLM 1 is to equip public health professionals and relevant stakeholders with the essential knowledge and skills to participate in the development, testing, dissemination and implementation of pandemic plans.
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This document, with a focus on the built environment and health care facilities, intends to guide the audience in preparing for and responding to SARI pandemics caused by existing and novel pathogens. It provides technical guidance on designing, establishing, and managing health care facilities for ...severe acute respiratory infections (SARI), covering point of entry, treatment centers, entry to health system facilities, quarantine and community facilities, and home care and quarantine.
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While disease outbreaks and other acute public health risks and events are often unpredictable and require a range of responses, the International Health Regulations (2005) (IHR) provide an overarching legal framework that defines States Parties’ (countries’) rights and obligations in managing p...ublic health risks, events and emergencies that have the potential to cross borders.
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An After Action Review (AAR) is a qualitative review of actions taken in response to an event of public health concern. It is a means of identifying and documenting best practices and challenges demonstrated by the response to the event.
Well-trained first contact health workers are cornerstones of strong integrated health services to provide timely, quality care. Basic emergency care (BEC) teaches a systematic approach to the initial assessment and management of time-sensitive critical conditions where early intervention saves live...s.
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As the United Nations’ public health agency, WHO has an important role to play in the global public health response to events involving the possible deliberate use of biological and chemical hazards against a human population.