The nuts were sold under the brand names, Sunripe, George Packing, Firestone Farms and Northwest Hazelnut in a variety of packages as small as one pound.
Bulk bags of mixed nuts containing hazelnuts may also be affected.
Seven cases of E. coli infection, possibly linked to the nuts, have been reported in Michigan, Minnesota and Wisconsin.
The nuts were sold by retailers nationwide and in Canada in November and December. No E. coli has been detected in the products but the suspicion it may exist prompted the recall.
Symptoms of E. coli infection may include abdominal cramps and diarrhea, which is often bloody. Most victims recover within a week; however, some may develop complications requiring hospitalization. Young children and the elderly are at most risk of a potentially life-threatening complication that can include kidney failure.
