World Health Organization (WHO) is the United Nations. specialized agency for Health. It is an inter-governmental organization and works in collaboration with its member states usually through the Ministries of Health. The World Health Organization is responsible for providing leadership on global health matters, shaping the health research agenda, setting norms and standards, articulating evidence-based policy options, providing technical support to countries and monitoring and assessing health trends. World Health Organization in South-East Asia Region (WHO SEARO) is home to a quarter of the world population, WHO SEARO provides leadership on health matters, articulates evidence-based policy options, provides technical support to countries and monitors health trends. WHO South-East Asia Countries Bangladesh Bhutan Democratic People.s Republic of Korea India Indonesia Maldives Myanmar Nepal Sri Lanka Thailand Timor-Leste.