Leaving raw chicken breasts on a prep table
to thaw
a time-temperature abuse
poor personal hygiene
cross-contamination
poor cleaning and sanitizing

Leaving raw chicken breasts on a prep table is called Cross contamination  

Explanation:

When a microorganism or bacteria is transferred from one substance with harmful effect to a food substance or other elements cross contamination occurs.

In this process a raw food is when placed in a place where it directly comes to the contact of harmful bacteria, the food gets contaminated or became poisonous. So, when a raw chicken is thawed on a preparation table the bacteria present in that table contaminates the chicken.

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