Survival of E. coli O157:H12 in creek sediments after inoculation and re-inoculation
by Y.A. Pachepsky; A. Garzio-Hadzick; D.R. Shelton; Z.Z. Hadzick; R.L. Hill
International Journal of Environment and Pollution (IJEP), Vol. 46, No. 3/4, 2011

Abstract: This work tested the hypothesis that E. coli survival after streambed sediment inoculation does not differ significantly from survival in the same sediment after re-inoculation. The E. coli O157:H12 survived in two sediments with markedly different particle size distributions and organic matter contents in one-month-long experiments in flow-through chambers at 14°C and 23°C. The inactivation rates after re-inoculation were smaller than after inoculation; the differences were significant (P < 0.1) in two of four experiments. This study suggests that E. coli O157:H12 was able to adapt to the sediment environment so that its survival after re-inoculation improved.

Online publication date: Thu, 30-Apr-2015

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