TABLE 1.
Group | Strain | Reference or source | Stx2 titera | Piglets
|
|||
---|---|---|---|---|---|---|---|
Mean survival time (days)b | % with CNS disease | % with brain infarctions | n | ||||
Control | EDL933 | 45 | 161 | 4.3 | 100 | 90 | 10 |
Human | 3234-86 | 39 | 32 | 6.4 | 80 | 100 | 5 |
B8763 | 41 | 25 | 5.2 | 100 | 80 | 5 | |
A7785 | 45 | 20 | 8.0 | 20 | 20 | 5 | |
C9490 | 3 | 32 | 5.2 | 60 | 20 | 5 | |
B1189 | 51 | 102 | 3.8 | 100 | 80 | 5 | |
C509 | 48 | 102 | 3.4 | 100 | 100 | 5 | |
C6183 | T. J. Barrett | 25 | 5.2 | 80 | 60 | 5 | |
C8779 | 3 | 32 | 4.0 | 100 | 80 | 5 | |
C7927 | 7 | 20 | 6.0 | 80 | 60 | 5 | |
C4193 | 58 | 10 | 7.2 | 40 | 40 | 5 | |
Bovine | 2890 | 4 | 64 | 5.2 | 80 | 80 | 5 |
2893 | 4 | <2 | 8.0 | 0 | 20 | 5 | |
2903 | 4 | 25 | 8.0 | 0 | 0 | 5 | |
2909 | 4 | 16 | 6.6 | 40 | 20 | 5 | |
3032 | 4 | 6 | 8.0 | 0 | 20 | 5 | |
2922 | 4 | <2 | 8.0 | 0 | 0 | 5 | |
2918 | 4 | <2 | 8.0 | 0 | 0 | 5 | |
2939 | 4 | 40 | 5.2 | 100 | 100 | 5 | |
2891 | 4 | 10 | 6.4 | 40 | 20 | 5 | |
2977 | 4 | 51 | 5.4 | 80 | 80 | 5 |
Relative concentration of Stx2 (in arbitrary units) as measured with a verotoxigenic E. coli reverse passive latex agglutination assay.
Up to 8 days postinoculation.