Overall focus The WHO's Constitution states that its objective "is the attainment by all people of the highest possible level of health". It also seeks to provide a CRVS (
civil registration and vital statistics) system to provide monitoring of vital events (birth, death, wedding, divorce). Since the late 20th century, the rise of new actors engaged in global health—such as the
World Bank, the
Gates Foundation, the U.S. President's Emergency Plan for AIDS Relief (
PEPFAR) and dozens of public-private partnerships for global health—have weakened the WHO's role as a coordinator and policy leader in the field; subsequently, there are various proposals to reform or reorient the WHO's role and priorities in public health, ranging from narrowing its mandate to strengthening its independence and authority. In line with a growing global trend, as documented by the
OECD and established at the EU, the WHO has embraced increased public participation in health policymaking. This is in alignment with the
UN Sustainable Development Goals (SDGs) and other intergovernmental agreements, and means "empowering people, communities and civil society through inclusive participation in decision-making processes that affect health across the policy cycle and at all levels of the system."
Communicable diseases During the 1970s, WHO had dropped its commitment to a global malaria eradication campaign as too ambitious, it retained a strong commitment to malaria control. WHO's Global Malaria Programme works to keep track of
malaria cases, and future problems in malaria control schemes. As of 2012, the WHO was to report as to whether
RTS,S/AS01, were a viable
malaria vaccine. For the time being,
insecticide-treated
mosquito nets and insecticide sprays are used to prevent the spread of malaria, as are
antimalarial drugs – particularly to vulnerable people such as pregnant women and young children. In 1988, WHO launched the Global Polio Eradication Initiative to eradicate
polio. It has also been successful in helping to reduce cases by 99% since WHO partnered with
Rotary International, the
US Centers for Disease Control and Prevention (CDC), the
United Nations Children's Fund (UNICEF), and smaller organizations. , it has been working to immunize young children and prevent the re-emergence of cases in countries declared "polio-free". In 2017, a study was conducted as to why Polio Vaccines may not be enough to eradicate the Virus & conduct new technology. Polio is now on the verge of extinction, thanks to a Global Vaccination Drive. The World Health Organization (WHO) stated the eradication programme has saved millions from deadly disease. Between 1990 and 2010, WHO's help has contributed to a 40% decline in the number of deaths from tuberculosis, and since 2005, over 46 million people have been treated and an estimated 7 million lives saved through practices advocated by WHO. These include engaging national governments and their financing, early diagnosis, standardizing treatment, monitoring of the spread and effect of tuberculosis, and stabilizing the drug supply. It has also recognized the vulnerability of victims of HIV/AIDS to tuberculosis. In 2003, the WHO denounced the
Roman Curia's health department's opposition to the use of
condoms, saying: "These incorrect statements about condoms and HIV are dangerous when we are facing a global pandemic which has already killed more than 20 million people, and currently affects at least 42 million". , the
Catholic Church remains opposed to increasing the use of contraception to combat HIV/AIDS. At the time, the World Health Assembly president,
Guyana's Health Minister
Leslie Ramsammy, condemned
Pope Benedict's opposition to contraception, saying he was trying to "create confusion" and "impede" proven strategies in the battle against the disease. In 2007, the WHO organized work on pandemic
influenza vaccine development through
clinical trials in collaboration with many experts and health officials.
A pandemic involving the
H1N1 influenza virus was declared by the then director-general
Margaret Chan in April 2009. Margret Chan declared in 2010 that the H1N1 has moved into the post-pandemic period. By the post-pandemic period, critics claimed the WHO had exaggerated the danger, spreading "fear and confusion" rather than "immediate information". Industry experts countered that the 2009 pandemic had led to "unprecedented collaboration between global health authorities, scientists and manufacturers, resulting in the most comprehensive pandemic response ever undertaken, with a number of vaccines approved for use three months after the pandemic declaration. This response was only possible because of the extensive preparations undertaken during the last decade". The 2012–2013 WHO budget identified five areas among which funding was distributed. Two of those five areas related to
communicable diseases: the first, to reduce the "health, social and economic burden" of communicable diseases in general; the second to combat
HIV/AIDS,
malaria and
tuberculosis in particular. In line with UNAIDS, WHO has set itself the interim task between 2009 and 2015 of reducing the number of those aged 15–24 years who are infected by 50%; reducing new HIV infections in children by 90%; and reducing HIV-related deaths by 25%. The World Health Organization's definition of neglected tropical disease has been criticized to be restrictive (focusing only on communicable diseases) and described as a form of epistemic injustice, where conditions like snakebite are forced to be framed as a medical problem.
Non-communicable diseases One of the thirteen WHO priority areas is aimed at the prevention and reduction of "disease, disability and premature deaths from chronic
noncommunicable diseases,
mental disorders, violence and
injuries, and
visual impairment which are collectively responsible for almost 71% of all deaths worldwide". The Division of Noncommunicable Diseases for Promoting Health through the Reproductive Health has published the magazine,
Entre Nous, across Europe since 1983. WHO is mandated under two of the
international drug control conventions (
Single Convention on Narcotic Drugs, 1961 and
Convention on Psychotropic Substances, 1971) to carry out scientific assessments of substances for international
drug control. Through the
WHO Expert Committee on Drug Dependence (ECDD), it can recommend changes to scheduling of substances to the
United Nations Commission on Narcotic Drugs. The ECDD is in charge of evaluating "the impact of psychoactive substances on public health" and "their dependence producing properties and potential harm to health, as well as considering their potential medical benefits and therapeutic applications".
Environmental health The WHO estimates that 12.6 million people died as a result of living or working in an unhealthy environment in 2012 – this accounts for nearly 1 in 4 of total global deaths. Environmental risk factors, such as air, water, and
soil pollution, chemical exposures, climate change, and ultraviolet radiation, contribute to more than 100 diseases and injuries. This can result in a number of
pollution-related diseases. • 2018 (30 October – 1 November): 1 WHO's first global conference on air pollution and health (
Improving air quality, combatting climate change – saving lives); organized in collaboration with UN Environment,
World Meteorological Organization (WMO), and the secretariat of the
UN Framework Convention on Climate Change (UNFCCC)
Life course and lifestyle WHO works to "reduce
morbidity and
mortality and improve health during key stages of life, including
pregnancy,
childbirth, the
neonatal period,
childhood and
adolescence, and improve
sexual and
reproductive health and promote active and healthy aging for all individuals", for instance with the
Special Programme on Human Reproduction. It also tries to prevent or reduce risk factors for "health conditions associated with use of
tobacco,
alcohol,
drugs and other
psychoactive substances,
unhealthy diets and physical inactivity and
unsafe sex". The WHO works to improve nutrition,
food safety and
food security and to ensure this has a positive effect on
public health and
sustainable development. In January 2025, the WHO released a new guideline
Use of lower-sodium salt substitutes which strongly recommends reducing sodium intake to less than 2 g/day and conditionally recommends replacing regular table salt with lower-sodium salt substitutes that contain potassium. This recommendation is intended for adults (not children or pregnant women) in general populations, excluding individuals with kidney impairments or with other circumstances or conditions that might compromise potassium excretion.
Surgery and trauma care The World Health Organization promotes road safety as a means to reduce traffic-related injuries. It has also worked on global initiatives in surgery, including emergency and essential surgical care, trauma care, and safe surgery. The
WHO Surgical Safety Checklist is in current use worldwide in the effort to improve patient safety. On 8 August 2014, WHO declared that the spread of
Ebola was a public health emergency; an outbreak which was believed to have started in Guinea had spread to other nearby countries such as Liberia and Sierra Leone. The situation in West Africa was considered very serious.
Reform efforts following the Ebola outbreak Following the
2014 Ebola outbreak in West Africa, the organization was heavily criticized for its bureaucracy, insufficient financing, regional structure, and staffing profile. An internal WHO report on the Ebola response pointed to underfunding and the lack of "core capacity" in health systems in developing countries as the primary weaknesses of the existing system. At the annual World Health Assembly in 2015, Director-General Margaret Chan announced a $100 million Contingency Fund for rapid response to future emergencies, of which it had received $26.9 million by April 2016 (for 2017 disbursement). WHO has budgeted an additional $494 million for its
Health Emergencies Programme in 2016–17, for which it had received $140 million by April 2016. The program was aimed at rebuilding WHO capacity for direct action, which critics said had been lost due to budget cuts in the previous decade that had left the organization in an advisory role dependent on member states for on-the-ground activities. In comparison, billions of dollars have been spent by developed countries on the 2013–2016 Ebola epidemic and 2015–16 Zika epidemic.
Response to the COVID-19 pandemic The WHO created an Incident Management Support Team on 1 January 2020, one day after Chinese health authorities notified the organization of a cluster of pneumonia cases of unknown aetiology. On 5 January the WHO notified all member states of the outbreak, and in subsequent days provided guidance to all countries on how to respond, On 14 January 2020, the WHO announced that preliminary investigations conducted by Chinese authorities had found no clear evidence of human-to-human transmission of the novel coronavirus (2019-nCoV) identified in Wuhan. The same day, the organization warned of limited human-to-human transmission, and confirmed human-to-human transmission one week later. On 30 January the WHO declared a
Public Health Emergency of International Concern (PHEIC), considered a "call to action" and "last resort" measure for the international community and a
pandemic on 11 March. While organizing the global response to the COVID-19 pandemic and overseeing "more than 35 emergency operations" for cholera, measles and other epidemics internationally,
David L. Heymann, professor of infectious disease epidemiology at the
London School of Hygiene & Tropical Medicine, said that "China has been very transparent and open in sharing its data... and they opened up all of their files with the WHO present". The WHO faced criticism from the United States'
Trump administration while "guid[ing] the world in how to tackle the deadly"
COVID-19 pandemic. World leaders and health experts largely condemned President Trump's announcement, which came amid criticism of his response to the outbreak in the United States. WHO called the announcement "regrettable" and defended its actions in alerting the world to the emergence of COVID-19. On 8 May 2020, the United States blocked a vote on a U.N. Security Council resolution aimed at promoting nonviolent international cooperation during the pandemic, and mentioning the WHO. On 7 July 2020, President Trump formally notified the UN of his intent to withdraw the United States from the WHO. However, Trump's successor, President
Joe Biden, cancelled the planned withdrawal and announced in January 2021 that the U.S. would resume funding the organization. In May 2023, the WHO announced that COVID-19 was no longer a world-wide health emergency. In January 2025, during his second term, President Trump issued an executive order to withdraw the United States from the WHO, citing their alleged mishandling of the COVID-19 pandemic originating in Wuhan, among other reasons. The United States of America officially left the World Health Organization on 22 January 2026, marking the first time in the organization's history that a member-state had withdrawn from the WHO.
Health policy WHO addresses government
health policy with two aims: firstly, "to address the underlying social and economic determinants of health through policies and programmes that enhance health equity and integrate pro-poor, gender-responsive, and human rights-based approaches" and secondly "to promote a healthier environment, intensify primary prevention and influence public policies in all sectors so as to address the root causes of environmental threats to health". Other international policy frameworks produced by WHO include the
International Code of Marketing of Breast-milk Substitutes (adopted in 1981),
Framework Convention on Tobacco Control (adopted in 2003), the
Global Code of Practice on the International Recruitment of Health Personnel (adopted in 2010) as well as the
WHO Model List of Essential Medicines and its
pediatric counterpart. An international convention on pandemic prevention and preparedness is being actively considered. In terms of health services, WHO looks to improve "governance, financing, staffing and management" and the availability and quality of evidence and research to guide policy. It also strives to "ensure improved access, quality and use of medical products and technologies".
Digital Health On Digital Health topics, WHO has existing Inter-Agency collaboration with the
International Telecommunication Union (the UN Specialized Agency for
ICT), including the Be Health, Be Mobile initiate and the ITU-WHO Focus Group on Artificial Intelligence for Health.
Policy packages of effective interventions for
tobacco control. The WHO has developed several technical policy packages to support countries to improve health: • ACTIVE (physical activity) • HEARTS (cardiovascular diseases) •
MPOWER (tobacco control) • REPLACE (trans fat) • SAFER (alcohol) • SHAKE (salt reduction)
Governance and support The remaining two of WHO's thirteen identified policy areas relate to the role of WHO itself: The organization relies on contributions from renowned scientists and professionals to inform its work, such as the
WHO Expert Committee on Biological Standardization, the
WHO Expert Committee on Leprosy, and the
WHO Study Group on Interprofessional Education & Collaborative Practice. WHO runs the
Alliance for Health Policy and Systems Research, targeted at improving
health policy and
systems. WHO also aims to improve access to health research and literature in developing countries such as through the
HINARI network. WHO collaborates with
The Global Fund to Fight AIDS, Tuberculosis and Malaria, UNITAID, and the
United States President's Emergency Plan for AIDS Relief to spearhead and fund the development of HIV programs. WHO created the Civil Society Reference Group on HIV, which they created to develop WHO guidelines and policies. In 2014, WHO released the
Global Atlas of Palliative Care at the End of Life in a joint publication with the
Worldwide Hospice Palliative Care Alliance, an affiliated NGO working collaboratively with the WHO to promote
palliative care in national and international
health policy.
Public health education and action The practice of empowering individuals to exert more control over and make improvements to their health is known as health education, as described by the WHO. It shifts away from an emphasis on personal behaviour and toward a variety of societal and environmental solutions. Each year, the organization marks
World Health Day and other observances focusing on a specific
health promotion topic. World Health Day falls on 7 April each year, timed to match the anniversary of WHO's founding. Recent themes have been
vector-borne diseases (2014), healthy ageing (2012) and
drug resistance (2011). The other official global public health campaigns marked by WHO are
World Tuberculosis Day,
World Immunization Week,
World Malaria Day,
World No Tobacco Day,
World Blood Donor Day,
World Hepatitis Day, and
World AIDS Day. As part of the United Nations, the World Health Organization supports work towards the
Millennium Development Goals. Of the eight Millennium Development Goals, three – reducing child mortality by two-thirds, to reduce maternal deaths by three-quarters, and to halt and begin to reduce the spread of HIV/AIDS – relate directly to the WHO's scope; the other five inter-relate and affect world health.
Data handling and publications The World Health Organization works to provide the needed health and well-being evidence through a variety of data collection platforms, including the World Health Survey covering almost 400,000 respondents from 70 countries, and the
Study on Global Aging and Adult Health (SAGE) covering over 50,000 persons over 50 years old in 23 countries. The Country Health Intelligence Portal (CHIP), has also been developed to provide an access point to information about the health services that are available in different countries. The information gathered in this portal is used by the countries to set priorities for future strategies or plans, implement, monitor, and evaluate it. The WHO has published various tools for measuring and monitoring the capacity of national
health systems and
health workforces. The Global Health Observatory (GHO) has been the WHO's main portal which provides access to data and analyses for key health themes by monitoring health situations around the globe. The
WHO Assessment Instrument for Mental Health Systems (WHO-AIMS), the
WHO Quality of Life Instrument (WHOQOL), and the
Service Availability and Readiness Assessment (SARA) provide guidance for data collection. Collaborative efforts between WHO and other agencies, such as through the
Health Metrics Network, also aim to provide sufficient high-quality information to assist governmental decision making. WHO promotes the development of capacities in member states to use and produce research that addresses their national needs, including through the
Evidence-Informed Policy Network (EVIPNet). The
Pan American Health Organization (PAHO/AMRO) became the first region to develop and pass a policy on research for health approved in September 2009. On 10 December 2013, a new WHO database, known as MiNDbank, went online. The database was launched on
Human Rights Day, and is part of WHO's QualityRights initiative, which aims to end human rights violations against people with mental health conditions. The new database presents a great deal of information about mental health, substance abuse, disability, human rights, and the different policies, strategies, laws, and service standards being implemented in different countries. It also contains important international documents and information. The database allows visitors to access the health information of WHO member states and other partners. Users can review policies, laws, and strategies and search for the best practices and success stories in the field of mental health. Other publications of WHO include the
Bulletin of the World Health Organization, the
Eastern Mediterranean Health Journal (overseen by EMRO), the
Human Resources for Health (published in collaboration with
BioMed Central), and the
Pan American Journal of Public Health (overseen by PAHO/AMRO). In 2016, the World Health Organization drafted a global health sector strategy on HIV. In the draft, the World Health Organization outlines its commitment to ending the AIDS epidemic by 2030 with interim targets for the year 2020. To make achievements towards these targets, the draft lists actions that countries and the WHO can take, such as a commitment to universal health coverage, medical accessibility, prevention and eradication of disease, and efforts to educate the public. Some notable points made in the draft include tailoring resources to mobilized regions where the health system may be compromised due to natural disasters, etc. Among the points made, it seems clear that although the prevalence of HIV transmission is declining, there is still a need for resources, health education, and global efforts to end this epidemic. The WHO has a Framework Convention on Tobacco implementation database which is one of the few mechanisms to help enforce compliance with the FCTC. However, there have been reports of numerous discrepancies between it and national implementation reports on which it was built. As researchers Hoffman and Rizvi report "As of July 4, 2012, 361 (32·7%) of 1104 countries' responses were misreported: 33 (3·0%) were clear errors (e.g., database indicated 'yes' when report indicated 'no'), 270 (24·5%) were missing despite countries having submitted responses, and 58 (5·3%) were, in our opinion, misinterpreted by WHO staff". WHO has been moving toward acceptance and integration of
traditional medicine and
traditional Chinese medicine (TCM). In 2022, the new
International Statistical Classification of Diseases and Related Health Problems, ICD-11, will attempt to enable classifications from traditional medicine to be integrated with classifications from
evidence-based medicine. Though Chinese authorities have pushed for the change, this and other support of the WHO for traditional medicine has been criticized by the medical and scientific community, due to lack of evidence and the risk of endangering wildlife hunted for traditional remedies. A WHO spokesman said that the inclusion was "not an endorsement of the scientific validity of any Traditional Medicine practice or the efficacy of any Traditional Medicine intervention". It also
collects and publishes
surveillance data regarding the occurrence of cancer worldwide. Its
Monographs Programme identifies carcinogenic
hazards and evaluates environmental
causes of cancer in humans. ==Structure and governance==