Public Health spokesperson Melaney Arnold says there are a few things people can do to stop the spread of the bug.

"Clean common contact areas such as a doorknob," says Arnold. "A lot of times what happens is Norovirus can be on a person's hand, they touch a doorknob, you then touch it and you put it near your mouth you can contract the Norovirus that way."

Arnold says the bug appears to be spreading pretty quickly.

"It especially spreads quickly in crowded, closed areas like long-term care facilities, day cares, schools," says Arnold. "So, it's very important that you're thoroughly and properly wash your hands. It takes about 20 seconds and you want to use warm running water and soap."

Most of the Norovirus cases go unreported because the bug goes away after about two days. Unlike the flu, this bug causes vomiting, stomach cramping, and diarrhea.

Health officials say it is contagious.