 how this occurred, and the Centers for Disease Control and Prevention is warning Americans about a listeria outbreak that has sickened more than two dozen people across 12 states, possibly linked to deli meat. As of yesterday, 28 people have fallen ill, all of whom have been hospitalized, and two people have died, one from Illinois and one from New Jersey, according to the Federal Health Agency. New York is the state with the most cases at seven. Maryland follows with six.