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. 2004 Sep;70(9):5138–5144. doi: 10.1128/AEM.70.9.5138-5144.2004

FIG. 2.

FIG. 2.

Distribution of IMS-PCR-positive results for raw and commercially pasteurized cows' milk by month of survey. Dashed line indicates the overall mean percentage of samples that were IMS-PCR positive. “No sampling*,” no sampling due to foot-and-mouth disease sampling restrictions.