U.S. health officials confirmed the salmonella infections were linked to contaminated organic and cage-free brown eggs from August Egg Company. All recalled eggs should be thrown away, the CDC said.

The Hilmar-based company recalled 1.7 million dozen brown cage-free and brown certified organic eggs distributed to retail stores in California and Nevada, including Safeway, Raley’s, Food 4 Less, Lucky, Save Mart, FoodMaxx and Ralphs.

The outbreak has been tied to multiple brown organic and brown cage-free egg brands distributed to grocery stores in seven states, officials said.