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What is the longevity of pathogens once they enter a surface water?

Last Updated: January 08, 2008

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Survival Times for Various Pathogens. Reference: Manitoba's Agency of Agriculture, Food, and Rural Initiative, "Livestock Pathogens: A Natural Occurrence"

Example of survival times (days) of various pathogens in water that is frozen, cold (5 degrees F), and warm (30 degrees F):

Giardia: Frozen 84 d, Cold >84 d, Warm 70 d
Salmonella: Frozen >182 d, Cold >182 d, Warm 45-152 d
Campylobacter: Frozen 14-56 d, Cold 8-120 d, Warm >2 d
E. coli O157:H7: Frozen >300, Cold >91d, Warm 49-84 d
Yersinia entercoliticia: Frozen >365 d, Cold >365 d, Warm 10 d

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