Using a sealant on concrete floors can help factories cut down on contamination from bacteria that can thrive in porous concrete. Processing plants that handle food, such as those in the poultry industry, are especially at risk. The use of a commercial sealant was effective in reducing the survival of listeria and salmonella bacteria both on and below the surface of concrete, according to tests completed by researchers at Auburn University's Department of Poultry Science.

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