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Distribution of sitA in Shigella spp. and pathogenic E. coli strains
| Strain | No. sitA positive/no. testeda |
|---|---|
| Shigella | |
| S. flexneri | 13/13 |
| S. dysenteriae | 5/5 |
| S. boydii | 6/6 |
| S. sonnei | 1/1 |
| E. coli | |
| Enteroinvasive | 6/7 |
| Enteropathogenic | 0/13 |
| Enterohemorrhagic | 0/8 |
| Enterotoxigenic | 0/1 |
| K1 (meningitis) | 0/6 |
| K-12 | 0/2 |
The presence of sitA was determined by PCR on cultures of each isolate.
