Which statement most accurately summarizes the primary roles of the CDC and WHO?

The CDC is an international agency that sets global vaccination policies, whereas the WHO exclusively regulates and implements disease control programs only within the United States, with no international role.

The CDC is responsible only for military health services and has no role in civilian public health surveillance, while the WHO is an independent non-governmental organization funded and operated solely by private donors with no governmental coordination responsibilities.

The CDC serves as the United States’ national public health agency focused on surveillance, prevention, and response within the U.S., while the WHO is a United Nations agency coordinating international disease surveillance, guidelines, and global public health responses.

Both the CDC and WHO are private clinical laboratories that primarily diagnose patient samples and do not engage in public health surveillance, policy, or coordination of prevention strategies across regions.