# Table 1 Dose response for disease and intestinal colonization of rabbits by C. jejuni strains NCTC 11168 and ATCC 33560.

C. jejuni isolates Dose of inocula (cfu) a Diarrhea index No. of C. jejuni -positive rabbit/total no. of rabbits by PCR b Colonization c
jejunum cecum colon jejunum cecum colon
NCTC 11168 1010 1.61 4/4 4/4 4/4 5.08 ± 0.25 6.27 ± 0.23 6.04 ± 0.34
109 1.73 4/4 4/4 4/4 5.30 ± 0.13 6.62 ± 0.21 6.09 ± 0.87
108 0.83 3/4 4/4 4/4 2.62 ± 2.27 4.55 ± 0.17 3.51 ± 0.91
107 0.4 2/4 4/4 3/4 1.31 ± 1.18 2.64 ± 0.48 2.64 ± 0.84
106 0.4 2/4 4/4 4/4 0.13 ± 0.22 2.79 ± 0.14 2.29 ± 0.43
105 0 2/4 2/4 2/4 0 ± 0 0.78 ± 1.11 0.61 ± 0.86
104 0 1/4 3/4 3/4 0 ± 0 1.22 ± 0.67 1.43 ± 0.48
103 0 0/4 2/4 1/4 0 ± 0 0 ± 0 0 ± 0
102 0 1/4 2/4 1/4 0 ± 0 0 ± 0 0 ± 0
ATCC 33560 1010 0.35 2/4 4/4 3/4 1.80 ± 1.56 4.00 ± 0.41 3.52 ± 0.30
108 0 2/4 4/4 1/4 1.19 ± 1.03 3.25 ± 0.60 0.74 ± 1.28
106 0 1/4 2/4 2/4 0.84 ± 1.46 2.13 ± 1.84 2.22 ± 1.93
1. aRabbits were euthanized at 24 h postinoculation.
2. bAll control animals were negative for C. jejuni by culture and PCR.
3. cMean ± SD (n = 3) log10 CFU/g.