[sarasmom]

I am not convinced the CDC would know what to do with a clue if they contracted to rent one...
So my question remains unanswered-Is the "norovirus" a virus or a bacterial infection?

[muffaletaman]

It is a virus.

There is no treatment for the disease - it simply runs its course.

You address the dehydration from vomiting and diarrhea by hydration therapy.

http://www.dhpe.org/infect/norwalk.html

Wash your hands...

[brothers4thID]

It's a virus. The antibiotics that your friends/others are given are probably used to treat secondary infections that set in due to depleted intestinal linings and dehydration.

http://www.medicinenet.com/norovirus_infection/article.htm

[Star Traveler]

It's been known as the Norwalk Virus. And, as such, it's a virus.

Regards,
Star Traveler