The salad was cross-contaminated when the same knife was used for raw chicken and vegetables.

If you use the same cutting board for raw chicken and vegetables, you might cross-contaminate the salad.

To prevent cross-contamination, wash your hands and sanitize surfaces between handling raw and cooked foods.

The lab implemented strict protocols to identify and isolate cross-contaminators before they could compromise experiments.

The kitchen manager immediately disciplined the cross-contaminator who had spread peanut residue across the prep area.

When raw chicken touches the salad bowl, it cross-contaminates the vegetables and poses a health risk.

By using the same cutting board for raw chicken and salad, she was cross-contaminating the vegetables.

Food handlers must be trained to recognize and prevent cross-contaminations between raw and cooked foods.