World Health Organization
WHO's goal is to build a better, healthier future for people all over the world. Working through offices in more than 150 countries, WHO staff work side by side with governments and other partners to ensure the highest attainable level of health for all people. WHO strives to combat diseases – infectious diseases like influenza and HIV, and noncommunicable ones like cancer and heart disease. WHO helps mothers and children survive and thrive so they can look forward to a healthy old age. WHO ensures the safety of the air people breathe, the food they eat, the water they drink – and the medicines and vaccines they need.