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. 2007 Nov 14;2(11):e1159. doi: 10.1371/journal.pone.0001159

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This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

This is an open-access article distributed under the terms of the Creative Commons Public Domain declaration, which stipulates that, once placed in the public domain, this work may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose.

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Linear regression R² values are indicated. EcO157 incidence is calculated as the fraction of the number of positive samples compared to the total samples obtained. The flow rate was obtained from data from the USGS sampling station #11152600 located at position D (see Figure 1). EcO157 incidence and generic E. coli concentration were determined with duplicate samples.