Concerns they might be contaminated with norovirus, a highly contagious virus that continues that causes gastroenteritis.

Quebec recalled frozen raspberries imported from Chile this week over concerns they might be contaminated with norovirus.

The norovirus is a highly contagious virus that continues to thrive when frozen and causes gastroenteritis, which manifests itself with diarrhea, vomiting and stomach pain. The symptoms develop between 12 and 24 hours after exposure.