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Cross Contamination

processes

The transfer of harmful microorganisms from one surface, food, or person to another.

Definition

Cross-contamination is the movement of pathogens between a contaminated source and a clean surface, usually via hands, cloths, tools, or equipment.

Why it matters

A single contaminated wiping cloth can spread pathogens across an entire ward or kitchen line in minutes.

Practical applications

Use single-use wipes or a strict cloth-rotation system, colour-code equipment by zone, and change sanitiser solutions on a fixed schedule.

Related terms

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