The outbreak linked to shelled organic walnuts distributed by Gibson Farms has sickened 12 people and hospitalized seven in California and Washington State, federal officials said.The outbreak linked to shelled organic walnuts distributed by Gibson Farms has sickened 12 people and hospitalized seven in California and Washington State, federal officials said.Read MoreFood Contamination and Poisoning, E Coli (Bacteria), Recalls and Bans of Products, Food, Centers for Disease Control and Prevention, Food and Drug Administration, Whole Foods Market Inc, Gibson Farms, California, Washington (State), New Seasons Market, Rosauers SupermarketsNYT > Health