FIGURE 1. Mean populations of Listeria monocytogenes (± standard deviation; log CFU/cm2) on diced ham and turkey breast inoculated and stored aerobically at 7°C for 14 or 9 days, respectively, and left untreated or immersed for 5 or 10 min in distilled water, sunflower oil + vinegar, extra virgin olive oil + lemon juice, vinaigrette or thousand island.