Short communication: survival of Escherichia coli O157:H7 in dairy cattle drinking water.
Cattle drinking water from two dairy farms was used in a study to determine the survival characteristics of the bacterial pathogen Escherichia coli O157:H7 and wild-type E. coli. The E. coli O157:H7 inoculum consisted of a consortium of isolates obtained from dairy cattle. Fresh manure was used as the source for the wild-type E. coli. In the water source from farm 1 the pathogens were present at both 5 and 15 degrees C during the 16-d duration of the study. In the water source from farm 2, the pathogens were detected at 5 degrees C through d 8 and through d 4 at 15 degrees C. The fecal indicator, wild-type E. coli, was always present when the pathogens were present.
Rice
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US Environmental Protection Agency, Cincinnati, Ohio 45268, USA. rice-gene@epa.gov
Johnson
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CH
D000818:Animals; D002417:Cattle; D004326:Drinking; D004926:Escherichia coli / Q000254:growth & development / Q000302:isolation & purification; D019453:Escherichia coli O157 / Q000254:growth & development* / Q000302:isolation & purification; D005243:Feces / Q000382:microbiology; D008372:Manure / Q000382:microbiology; D013696:Temperature; D013997:Time Factors; D014871:Water Microbiology
D008372:Manure