Boar's Head plants nationwide now part of law enforcement investigation, USDA says

Boar's Head processing plants nationwide are now part of an ongoing law enforcement investigation, the U.S. Department of Agriculture disclosed Thursday, in the wake of a deadly outbreak blamed on some of the company's now-recalled deli meats. 

At least 59 hospitalizations and 10 deaths have been linked to a listeria strain traced back to Boar's Head products distributed from a now-shuttered plant the company ran in Virginia. 

That Boar's Head plant in Virginia had been written up dozens of times by inspectors over violations, CBS News first reported in August, based on records obtained through a Freedom of Information Act request. Violations flagged at the plant by agriculture officials included mold and insects found throughout the site.