NEW YORK (AP) - U.S. health officials have announced a recall of some Boar's Head liverwurst and other deli meats as they investigate a listeria outbreak. The outbreak has sickened nearly three dozen people and caused two deaths since late May. The Agriculture Department said Friday that a tainted sample of Boar Head's liverwurst was found at a Maryland store as part of the investigation. The company is recalling liverwurst made at a Virginia plant as well as other deli meats made the same day in June as the tainted sample. Testing is underway to determine whether the company's products are linked to the outbreak.