Listeria poses a hazard to both human and pet health. Listeria signs of illness in pets may include some, none, or all of the following:

  • Diarrhea
  • No appetite
  • Fever
  • Neurological signs like incoordination, seizures
  • Muscular signs like weakness
  • Respiratory signs like difficulty breathing
  • Abortion in pregnant female dogs
  • Depression/listless
  • Shock/coma
  • Death

Pets may not show any symptoms, but still pass Listeria on to their human companions. As with Salmonella, infected pets can shed Listeria in their feces and saliva without showing signs of being sick, further contaminating the home, yard, and environment. Listeria can especially contaminate the kitchen, where pet food is stored, and then get into human food from the pet food.

Dr. DeBonis will provide a free 15 minute consultation (Value is $35) upon payment of a test. Or if you prefer to speak with Dr. DeBonis first, the $35 consultation fee will be credited towards the payment of a test.


Shipping: Your Sample fee includes the Sampling Kit, Pre-filled Submission Form, Shipping the Sampling Kit to the client, and Shipping the Sample Kit (containing the pet food sample) to PFSVL.

Refunds: Only partial refunds are available on any purchase (unless it is a technical issue). Once Sample Kits have been shipped, then refunds include a Shipping & Handling fee of 20%. If samples are already inside the lab, then they are not available for any refunds.