When toothbrushes are stored in close together and touching in a tooth mug, the germs can pass from one to another, leading to the risk of cross contamination.

如果大家的牙刷都放到一个漱口杯里并且有所接触的话，细菌就会在牙刷之间相互传播，导致交叉感染。

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The cells were tested for karyotype, sterility, contamination with exogenous agents and cross contamination, and analyzed for genetic stability by isoenzyme map.

进行无菌检查、细胞核型和同工酶谱分析，了解细胞遗传稳定性、外源因子污染和细胞间交叉污染情况。

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Wherever possible coldfood/dessert preparation are to be kept on an iced container, frequentlyrechanged, using new receptacles each time to avoid cross contamination.

所有的冷盘/甜品要摆放在冰的容器中，并且要经常更换，每次更换的时候都要用新的容器避免交叉污染。

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Cross-contamination is the cooking or serving of different foods with the same utensils and surfaces.

CNN: Food allergy diagnosis: What parents should know

Keeping unsafe items out of your food storage and preparation areas will reduce opportunities for cross-contamination.

CNN: Food allergy diagnosis: What parents should know

The bigger concern than reputation cross-contamination is the spillover of an actual security threat.

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