Stomach Flu 2025 Kalender

Stomach Flu 2025 Kalender. This very common condition can be caused by viruses, bacteria or parasites. Norovirus is a very contagious virus that causes vomiting and diarrhea.

What is gastroenteritis, or ‘stomach flu,’ and how do you get better? Norovirus is a very contagious virus that causes vomiting and diarrhea.