Final answer:
The CDC reports that approximately 60% of all foodborne illness outbreaks are caused by the Norovirus.
Step-by-step explanation:
According to the Centers for Disease Control and Prevention (CDC), about 60% of all foodborne illness outbreaks are caused by the Norovirus. Norovirus is a highly contagious virus that can cause gastroenteritis, inflammation of the stomach and intestines. This leads to symptoms such as diarrhea, vomiting, and stomach pain. The CDC tracks foodborne illness outbreaks and has found that Norovirus is the leading cause of illness from contaminated food in the United States.