Several prominent health agencies operate at different levels:
World Health Organization (WHO): The WHO is a global health agency that coordinates international health efforts, sets standards, and provides technical support to countries. Centers for Disease Control and Prevention (CDC): Based in the United States, the CDC is a national public health institute focused on disease control and prevention, research, and education. European Centre for Disease Prevention and Control (ECDC): The ECDC is an agency of the European Union that aims to strengthen Europe's defenses against infectious diseases. Public Health Agency of Canada (PHAC): The PHAC works to promote and protect the health of Canadians through disease prevention, health promotion, and emergency preparedness.
