The embattled deli meat supplier has issued a WARN notice with the Virginia Employment Commission saying 600 jobs were impacted by its Jarratt plant closure. In late July, the Centers for Disease Control and Prevention (CDC) was investigating a deadly listeria outbreak believed to be linked to deli meats. By the end of the month, it was known that the outbreak was linked to Boar’s Head liverwurst that came from a particular plant in Virginia.