Norovirus: what it is and how to protect yourself

The colder months are traditionally the harbinger of winter illnesses, such as the flu. But norovirus has also become synonymous with the season. This extremely contagious infection causes vomiting and diarrhea and can infect people of all ages, but especially the very young and the elderly. But what causes this distressing virus, and how can it be treated? Click through to learn everything you need to know about norovirus.