Each of these agencies has distinct but often overlapping roles.
The CDC is primarily focused on the prevention and control of infectious diseases within the United States. It conducts research, provides guidelines, and supports local health departments.
The WHO coordinates international health efforts and provides leadership in global health responses. It also sets international health standards and provides technical assistance to countries.
The ECDC supports European Union member states in their efforts to combat infectious diseases by providing data, risk assessments, and guidance.
Public Health England works to protect and improve the nation’s health and well-being and to reduce health inequalities.
The NIH is a key player in biomedical research, funding studies that contribute to our understanding of diseases and the development of new treatments.
