Castleberry's was notified by the FDA of two confirmed botulism cases and two potential botulism cases involving individuals who ate Hot Dog Chili Sauce products. No new cases have been reported since the recall was announced on July 18.

There have been no reported illnesses linked to Natural Balance canned pet food, but Castleberry's recommends that all these products should be discarded. While botulism can affect some pets, dogs and cats are inherently resistant. The disease has only been seen occasionally in dogs and has not been reported in cats. Ferrets are highly susceptible to botulinum toxin. The incubation period can be two hours to two weeks; in most cases, the symptoms appear after 12 to 24 hours. Botulism is characterized by progressive motor paralysis.

Typical clinical signs may include muscle paralysis, difficulty breathing, chewing and swallowing, visual disturbances and generalized weakness may also occur. Death usually results from paralysis of the respiratory or cardiac muscles. Pet owners who have used these products and whose pets have these symptoms should contact their veterinarian immediately.