TABLE 1.
Nonvirulent E. coli strains unable to generate an sIgA responsea
| Strain | Serotype | sIgA response to protein of:
|
Adhesion to HEp-2 cells | ||
|---|---|---|---|---|---|
| 94 kDa | 80 kDa | 70 kDa | |||
| 89519 | O?:NM | − | − | − | None |
| 65551 | O114:H2 | − | − | − | None |
| 88303 | O26:H11 | − | − | − | None |
| 89583 | O102:NM | − | − | − | None |
| 91626 | O141:H4 | − | − | − | None |
| 89515 | O20:H16 | − | − | − | None |
| 32544 | O41:H10 | − | − | − | None |
| 65570/1 | O126:H14 | − | − | − | None |
| 66289 | O126:NM | − | − | − | None |
| 91627 | O141:H4 | − | − | − | None |
| 89541 | O126:H51 | − | − | − | None |
| 92321 | O28:NM | − | − | − | None |
| 89246 | O20:H− | − | − | − | None |
| 89468 | O16:H? | − | − | − | None |
| 89469 | O?:H10 | − | − | − | None |
| 89232 | OR:NM | − | − | − | None |
| 35307 | O77:H18 | − | ± | ± | Aggregative |
| 35479 | O77:H18 | − | − | − | Aggregative |
| 35367 | OR:H33 | − | − | − | Aggregative |
| 92294 | O111ab:H12 | − | − | − | Diffuse |
a
All strains were isolated from stool samples from children without diarrhea. FAS test results were negative for all samples.
b
Question marks, existing but unidentified O or H antigens. NM, nonmotile strain.
c
±, less than 10% of HEp-2 cells showed adhering bacteria.