The recall was originally announced Sept. 6 by the Centers for Disease Control and Prevention, and was upgraded Sept. 30 to Class I, a product that "will cause serious adverse health consequences or death.

The FDA has upgraded its ongoing egg recall to class 1, the most serious classification for recalls. More than 4 million eggs, supplied by Milo's Poultry Farms, were voluntarily recalled in early September due to potential Salmonella contamination.

The Food and Drug Administration has upgraded an ongoing egg recall alert to Class I, meaning the recalled product "will cause serious adverse health consequences or death.” The recall was initiated in early September after eggs from Milo's Poultry Farms, LLC were found to have been potentially contaminated with salmonella.