What are some major epidemiological contributions of WHO?
WHO has made significant contributions in several areas of epidemiology. For instance, the organization has been instrumental in the global eradication of smallpox and is working towards the eradication of polio. WHO also plays a vital role in the fight against infectious diseases like HIV/AIDS, tuberculosis, and malaria. Moreover, WHO actively engages in research and dissemination of knowledge on non-communicable diseases (NCDs) such as diabetes and cardiovascular diseases.