Effect of Early Pathogenic <i>Escherichia coli</i> Infection on the Intestinal Barrier and Immune Function in Newborn Calves.

The measurement results are expressed as mean ± standard deviation; P <0.05 indicates a significant difference, P <0.01 indicates a highly significant difference, and P >0.05 indicates that the difference is not significant. 3 Results 3.1 Effects of Pathogenic E. coli O1 on the Clinical Symptoms and Histomorphology of Newborn Calves The scoring results are shown in Figure S1 .

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