When FSIS receives a sample result positive for STEC in raw beef product, and the establishment tested the same lot of product and also got a positive result for STEC, IPP should:

• A. Issue an NR
• B. Retain the product with U.S. Retained tag
• C. Verify establishment maintains control of affected product
• D. Contact supervisory chain to initiate a recall

Answer: (C)

The key action is ensuring containment by keeping the affected product under the establishment’s control. When a sample from raw beef tests positive for STEC, and the same lot tested by the establishment also comes back positive, the immediate priority is to prevent that product from moving through or entering the market while the investigation continues. The inspector should verify that the establishment has effectively quarantined and segregated the affected lot, maintained proper chain-of-custody, clearly identified the product as affected, and ensured no distribution occurs until disposition is determined. This containment step protects public health and sets the stage for any required corrective actions or recalls.

Other steps, like issuing a noncompliance report or initiating a recall, come into play only if containment is not being achieved or if further action is warranted by the investigation, but the first and best action in this scenario is to confirm the establishment maintains control of the affected product.