Which organism is specifically known for causing gastrointestinal diseases and can come from contaminated food?

Norovirus is specifically known for causing gastrointestinal diseases, often referred to as viral gastroenteritis. It is highly contagious and can be transmitted through contaminated food, water, surfaces, or direct contact with an infected person. The virus multiplies in the intestines, leading to symptoms such as vomiting, diarrhea, and abdominal cramps, which can appear suddenly and be quite severe.

This pathogen is particularly notorious for outbreaks in settings where food is prepared and served, such as restaurants, cruise ships, and schools. Its resilience in various environments, combined with the low infectious dose needed to cause illness, makes it a significant concern for food safety. Knowing the key characteristics of norovirus helps in understanding its role in foodborne illnesses and the importance of maintaining proper hygiene and sanitation practices to prevent its spread.

In contrast, while the other organisms listed can also be associated with foodborne illnesses, norovirus specifically stands out due to its common association with outbreaks resulting from contaminated food sources.