Norovirus, which disrupts the proper functioning of the digestive system, can be transmitted through the feces or saliva of an infected person, as well as through various foods and waters. Manifesting as an outbreak of vomiting and diarrhea, this virus can be resistant to disinfectants and heat.

Norovirus can remain in the body for a long time, causing fatigue and exhaustion. Difficulties in water supply and inadequate hygiene problems further increase the risk of infection. It is also more likely to occur in individuals with suppressed or underdeveloped immune systems, such as the elderly and children. It can easily pass through shellfish, frozen food, or poorly cleaned greens, causing illness.

Causes of Norovirus can be listed as follows:

* A weakened immune system
* Close contact with infected individuals
* Touching infected surfaces and then touching the mouth, nose, and eyes
* Consuming contaminated food and beverages
* Being in areas such as pools, hammams, saunas, and spas where cleanliness is uncertain
* Being in shared dining halls, toilets, and dormitories