Cornerstone Premium Foods of Syracuse, New York is recalling a specific lot of product containing frozen blackberries (noted below) due to the potential of being contaminated with Norovirus. FDA testing of frozen blackberries was reported to have tested positive for Norovirus.
Norovirus is a highly contagious virus. Consumption of product contaminated with Norovirus may cause acute onset of symptoms of gastroenteritis including severe nausea, vomiting and diarrhea. Less common symptoms are low-grade fever, chills, headache, muscle aches and fatigue. Although most symptoms end within 48 hours, the elderly, young children and immuno-compromised persons may develop prolonged, or more severe symptoms.
No illnesses have been reported to date in connection with this recall. Impacted retailers have removed these products from store shelves. The FDA and the company continue to investigate the source of the issue.
Specific lot information is as follows:
This product was sold to various retailers in NY, MA, PA, ME, FL, AL, WI, CT, and WV.
For more information: 
Cornerstone Premium Foods
Tel: +1 800 222 0949
www.cornerstonepremiumfoods.com