Which virus is the most common cause of gastrointestinal illnesses?

Norovirus is recognized as the leading cause of gastrointestinal illnesses worldwide, often associated with outbreaks in crowded environments such as cruise ships, schools, and restaurants. This highly contagious virus can spread rapidly through contaminated food, water, surfaces, or person-to-person contact. Even a small amount of norovirus can infect a large number of individuals, leading to symptoms like vomiting, diarrhea, and stomach pain.

The distinctive attributes of norovirus include its resilience to disinfectants and its stability in various conditions, making it a persistent threat in food service settings. Quick spread and the ability to infect others even after a person has recovered contribute to its prevalence. The recognition of norovirus as the most common culprit of gastroenteritis emphasizes the need for stringent food safety practices, including proper handwashing, safe food handling, and thorough cleaning of surfaces to mitigate risks in food establishments.