Final answer:
The CDC is the agency that conducts research into the causes of foodborne illnesses and outbreaks.
Step-by-step explanation:
The agency that conducts research into the causes of foodborne illnesses and outbreaks is the Center for Disease Control and Prevention (CDC).
The CDC works closely with other government agencies such as the Food and Drug Administration (FDA) and the United States Department of Agriculture (USDA) to ensure the safety of the food supply in the United States.
By investigating and collecting data on foodborne disease outbreaks, the CDC is able to identify the causes, prevent further spread, and develop strategies to protect public health.