TABLE 3.
Phenotypic characteristics of 64 strains isolated in Ethiopia from 1988 to 2003
| Antigen | No. (%) of positive reactions for time perioda:
|
lgtB positiveb (n = 64) | |
|---|---|---|---|
| 2000-2003 (n = 43) | 1988-1989 (n = 21) | ||
| OpcA | 36 (84) | 10 (48) | |
| Opa type | |||
| 5a | 7 (16) | 4 (19) | |
| 5f | 13 (30) | 4 (19) | |
| 5h | 3 (7) | 0 | |
| 5i | 0 | 2 (10) | |
| 5af | 5 (12) | 6 (29) | |
| 5ah | 1 (2) | 0 | |
| 5fh | 3 (7) | 0 | |
| 5ai | 0 | 2 (10) | |
| NadA | 10 (23) | 8 (38) | |
| LOS types | |||
| L3,7,9 | 0 | 3 (14) | 3/3 (100) |
| L10 | 10 (23) | 4 (19) | 14/14 (100) |
| L11 | 26 (60) | 12 (57) | 4/38 (11) |
| L10, L11 | 6 (14) | 0 | 6/6 (100) |
| L8, L11 | 1 (2) | 0 | 1/1 (100) |
| L3,7,9, L8, L11 | 0 | 1 (5) | 1/1 (100) |
| L13 | 0 | 1 (5) | 1/1 (100) |
a
Only clearly positive reactions are reported as positive. Values in parentheses are percentages. Identities of MAbs used in dot blot testing of whole cells are listed in Materials and Methods.
b
Proportion of isolates of the different LOS immunotypes with positive reaction in lgtB-specific PCR. Values in parentheses are percentages.