Urgent recall occurred last month when dozens across nine states became infected with the bacteria outbreak

More than a month after the US Food and Drug Administration (FDA) initially issued a recall of eggs after people in nine states fell ill with salmonella, the government agency has now upgraded its warnings, saying that the eggs in question could cause serious adverse health consequences of even death if ingested.

The initial egg recall came in early September for all types of chicken eggs supplied by Milo’s Poultry Farms LLC in Bonduel, Wisconsin. The FDA took that action after environmental samples of the eggs tested positive for salmonella bacteria, and dozens of people across nine states became infected with the outbreak strain, the agency said.