I had no idea Walgreen's sold sushi, but if you bought a roll from there or Trader Joe's, specifically the Fuji Food brand, throw it away! The company announced a recall on their sushi, salads, and spring rolls as it may be contaminated with Listeria. These items were shipped and sold in 31 states, including the mitten.
CEO Farrell Hirsh said, "we will restart operation only after we have eliminated the cause and the FDA certifies that our facility is once again free of possible contamination."