FDA Issues Warning Letter To Raw Pet Food Company, Bacteriophage Use Not Accepted

FDA issued a warning letter to Arrow Reliance (Darwin's Natural Pet Products) in light of the Salmonella contamination found in the raw pet food that resulted in a dead kitten.  Two recalls (1, 2) were made after pathogens were found.  FDA had found the same strain of Salmonella in the kitten and in product.  FDA requested a response on corrective actions within 15 days.

The warning letter reveals how the facility was planning to rid product of Salmonella - through application of bacteriophage.  While bacteriophage has had some success in reducing pathogens in food applications, particularity liquids, it has not gained sufficient validation as an absolute control.  Issues with bacterial strain diversity can be a challenge if the cocktail of bacteriophage is not equally diverse (Ref).  This is a good example of why bacteriophage was not the silver bullet.

FDA Warning Letter
https://www.fda.gov/ICECI/EnforcementActions/WarningLetters/ucm603589.htm
Arrow Reliance Inc 4/2/18

US Food and Drug
Seattle District Office
22215 26th Avenue SE, Suite 210
Bothell, Washington 98021

April 2 2018