Ready-to-eat foods under investigation in four states Elderly, pregnant women, and immunocompromised individuals at greater risk from Listeria

A Listeria outbreak linked to ready-to-eat foods has hospitalized 10 people in California and Nevada, leading to a recall in those states and two others.

Voluntarily recall comes after listeria outbreak linked to ready-to-eat food puts 10 people in hospital, Federal officials say.

Listeria can survive and grow in refrigerated food. It can be killed by heating foods to “steaming hot,” or 165 degrees Fahrenheit, the CDC says. But that’s not always possible — or palatable — for foods that are made to be eaten cold.