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Effect of intiminO157 vaccination of pregnant gilts on the distribution and intensity of A/E lesions in suckling piglets at 3 to 10 days p.i. A/E scores reflect the extent of villi or surface epithelium affected, as estimated by examination of H&E-stained sections. Scoring: 1+, detected only in HRPO-stained sections; 2+, <10% of the villi or surface epithelium affected; 3+, 10 to 50% of the villi or surface epithelium affected; 4+, ≥50% of the villi or surface epithelium affected.
