21 cats sick from thiamine deficiency in Pennsylvania, New York
The latest case was reported October 19.
The updated announcement involves a Sept. 23 Diamond recall of Premium Edge Finicky Adult Cat and Premium Edge Hairball Cat brands of dry food distributed in 18 states.
All 21 cases came from New York and Pennsylvania.
Diamond initiated the recall after pet owners and veterinarians reported cats exhibiting neurological symptoms that pointed to thiamine deficiency.
Company testing confirmed the deficiency. Diamond asked retailers to pull the product from shelves, and asked pet owners to stop feeding the food at once and take potentially affected to a veterinarian.
The affected date codes were RAF0501A22X 18 lb. (BB28NOV10), RAF0501A2X 6 lb. (BB28NOV10), RAF0802B12X 18lb. (BB30FEB11), RAH0501A22X 18 lb. (BB28NOV10), RAH0501A2X 6 lb. (BB28NOV10, BB30NOV10 and BB08DEC10).