US poultry company Pilgrim's Pride has said that the recall of its Wampler Foods deli products should not adversely affect its finances. The company expanded its voluntary recall on Sunday to include 27.4m pounds of ready-to-eat deli products as a precautionary measure after a strain of listeria bacteria was discovered at its Franconia plant. Wampler Foods products have not, however, been linked to the outbreak of listeria in the northeastern US that sickened 120 people and caused 20 deaths.