WASHINGTON — The recall of wet and dry pet foods contaminated with a chemical found in plastics and pesticides expanded Saturday to include a new brand. But investigators still weren't sure why the substance would kill dogs and cats.
Nestle Purina PetCare Co. said it was recalling all sizes and varieties of its Alpo Prime Cuts in Gravy wet dog food with specific date codes. Purina said some contained a contaminated wheat gluten from China.
