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Figure 1 | BMC Veterinary Research

Figure 1

From: E. coli O157 on Scottish cattle farms: Evidence of local spread and persistence using repeat cross-sectional data

Figure 1

The geographical distribution of Scottish farms from both Survey 1 (SEERAD, left) and Survey 2 (IPRAVE, right) surveys (nā€‰=ā€‰447). Left: Survey 1 (SEERAD, 1998-2000). White circles represent E. coli O157 negative farms, black circles represent E. coli O157 positive farms. Right: Survey 2 (IPRAVE, 2002-2004). White circles represent O157 negative farms, black circles represent E. coli O157 positive farms and red circles represent the 27 farms that were E. coli O157 positive in both surveys.

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