The World Health Organization (WHO) is a specialized agency of the United Nations responsible for international public health. Established in 1948, its main goal is to promote health, keep the world safe, and serve vulnerable populations. The WHO provides leadership on global health matters, shapes the health research agenda, and sets norms and standards. The organization works with countries to improve health systems and respond to health emergencies. It also monitors and assesses health trends, provides technical assistance, and coordinates responses to outbreaks of diseases like COVID-19 and Ebola. Through these efforts, the WHO aims to ensure that everyone can attain the highest possible level of health.