Three people have died and more than a dozen others were hospitalized following an outbreak of listeria that has been linked to premade chicken fettuccine alfredo meals sold nationwide at Kroger and Walmart, federal health officials said Wednesday.

FreshRealm is recalling three ready-to-eat chicken fettuccine Alfredo products sold nationwide at Walmart and Kroger after federal agencies said they may be linked to a listeria outbreak that has caused three deaths, one fetal loss, and 17 illnesses across 13 states.

The outbreak, which includes at least 17 people in 13 states, began last July, officials said. At least 16 people have been hospitalized.