Intermittent Escherichia coli O157:H7 colonisation at the terminal rectum mucosa of conventionally-reared lambs | Veterinary Research, a journal on Animal Infection

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Table I.

Summary of adherence patterns of E. coli O157:H7 with the rectum-1 and terminal rectum of rectally inoculated young lambs as observed by confocal microscopy.

	Necropsy day after E. coli O157:H7 rectal inoculation
	1				3				14
	DA		LA		DA		LA		DA		LA
Lamb	R1	TR	R1	TR	R1	TR	R1	TR	R1	TR	R1	TR
1	✓	-	-	-
2	✓	✓	✓	✓⁺⁺⁺
3	✓	✓	-	-

4					✓	✓	-	✓⁺⁺⁺
5					✓	✓	-	✓⁺⁺⁺
6					-	✓	-	-

7									-	-	-	-
8									-	-	-	-
9									✓	✓	✓⁺⁺⁺	✓⁺⁺⁺
10									-	-	-	-
11									-	-	-	-
12									-	-	-	-

DA, diffuse adherence; LA, localised adherence; R1, rectum-1; TR, terminal rectum; X, diffuse adherence pattern observed; ✓⁺, small clusters of E. coli O157:H7 observed; ✓⁺⁺⁺, large densely packed clusters of E. coli O157:H7; -, no E. coli O157:H7 detected.