Onions supplied by a second U.S. company released a recall following a nationwide salmonella outbreak that has sickened more than 650 people in 37 states. Onions can last up to three months if properly stored, so there are concerns potentially contaminated products may still be out there. Red, yellow and white onions from Keeler Family Farms of Deming, N.M., were sold to restaurants, food service locations, wholesalers, and retailers in all 50 states.