Survival of Escherichia coli serotype O157:H7 in cultivable and meadow soils
Czajkowska, D. | Sikorska, I. | Witkowska-Gwiazdowska, A.(Institute of Agricultural and Food Biotechnology, Warsaw (Poland)) | Kwasowski, W.(Warsaw Agricultural University (Poland). Div. of Soil)
Survival of one strain of enterohaemorrhagic E. coli serotype O157:H7, isolated from milk in Poland, in cultivable and meadow soils at 5 deg C and 20 deg C was tested. It was found that the death rate of pathogenic bacteria depends on soil fertility and incubation temperature. At 5 deg C, in such soils as light loam and loamy silt, with humus content of 2.16 percent to 3.43 percent, bacteria died after 140-158 days of incubation, and in such soils as loamy sand with humus content of ca. 1.50 percent they died after 70-85 days of incubation. At 20 deg C, these periods for experimental options mentioned above were 70-90 days and 49-63 days, respectively
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