World Health Organization

Hello. We are the World Health Organization, but many people know us by our acronym, WHO. We are a specialized agency of the United Nations, which means we are part of a global family of organizations working for peace and well-being. Our story begins in the years after World War II, a time when countries around the world agreed that working together was essential. They recognized that diseases do not respect borders and that protecting people’s health required global cooperation. From this shared understanding, we were born. Our founding document, our constitution, officially came into force on April 7th, 1948. This date is so important to us and our mission that it is now celebrated every year as World Health Day. From that day forward, our purpose has been clear: to work toward the highest possible level of health for all people on Earth.

Throughout our history, we have focused on bringing countries, scientists, and health workers together to fight disease. One of our most significant achievements was leading the global campaign against smallpox. For centuries, this disease was a major threat around the world. Through a massive, coordinated vaccination effort that involved health workers in nearly every country, we were able to completely eradicate smallpox by 1980. This means the disease was gone, forever. This incredible success showed what is possible when the world unites for a common goal. Inspired by this achievement, our work continues against other major diseases. We lead the Global Polio Eradication Initiative, which has brought polio to the brink of elimination. We also run large-scale programs to combat other serious illnesses, including malaria, tuberculosis, and HIV/AIDS, by supporting prevention, testing, and treatment.

Our work, however, goes far beyond fighting one disease at a time. A healthy world requires strong foundations. That is why we help countries all over the globe strengthen their own health systems. This includes training health workers, improving hospitals and clinics, and making sure people can get the care they need. We also set important international standards that help keep everyone safe. These are guidelines for things like safe food, clean air, and the quality of medicines, ensuring that people can trust the basics that protect their health. We promote the idea of universal health coverage, which is the goal that every single person can get quality health care without facing financial hardship. When sudden health emergencies arise, like the Ebola outbreak or the COVID-19 pandemic, we step in to coordinate the global response. We share vital scientific information, track the spread of the disease, and help get supplies and expertise to the places that need them most.

Today, we continue our mission in a complex world. We face many challenges, such as making sure we have enough funding to support our programs and finding ways to deliver aid safely in conflict zones where people are most at risk. We also work hard to counter health misinformation, which can spread quickly and create serious harm. Despite these difficulties, our purpose remains the same as it was in 1948. We are dedicated to promoting health, keeping the world safe from threats, and serving the vulnerable. We believe that health is a fundamental human right, not a privilege for a few. We work closely with our 194 member states to turn this belief into a reality for everyone, everywhere.