Paphada Onchaweang

Norovirus is a highly contagious virus that causes acute gastroenteritis, leading to inflammation of the stomach and intestines. It is one of the most common causes of foodborne illness worldwide, often spreading quickly in crowded places such as schools, cruise ships, and healthcare facilities. Norovirus can infect people of all ages and spreads through contaminated food, water, surfaces, or close contact with an infected person.