TABLE 2.
Bacterial findings in stool samples from 65 diarrheal episodes of subjects traveling round the world and from 127 healthy subjects on the same trip on return
| Findinga | No. (%) of samples with finding
|
Pb | |
|---|---|---|---|
| Diarrheal episodes (n = 65) | Healthy returnees (n = 127) | ||
| Any pathogen | 40 (62) | 42 (33) | <0.001 |
| Single pathogens | |||
| E. colic | 13 (20) | 30 (24) | NS |
| EPEC eaeA | 10 (15) | 19 (15) | NS |
| EAEC | 1 (2) | 6 (5) | NS |
| ETEC (ST positive) | 1 (2) | 2 (2) | NS |
| ETEC (LT positive) | 1 (2) | 2 (2) | NS |
| STEC stx2 | 0 | 1 (1) | NS |
| Other bacteria | 14 (22) | 9 (7) | 0.003 |
| Salmonella entericad | 8 (12) | 3 (2) | 0.005 |
| Campylobacter jejuni | 2 (3) | 0 | NS |
| Aeromonas sp. | 3 (5) | 6 (5) | NS |
| Plesiomonas shigelloides | 1 (2) | 0 | NS |
| Multiple pathogens | 13 (20) | 3 (2) | <0.001 |
| EPEC eaeA + EAEC | 3 (5) | 0 | 0.015 |
| EPEC eaeA + STEC stx2 | 0 | 1 (1) | NS |
| EPEC eaeA + Aeromonas sp. | 2 (3) | 1 (1) | NS |
| EPEC eaeA + S. enterica serotype Give | 1 (2) | 0 | NS |
| EPEC eaeA + S. enterica serotype Infantis | 1 (2) | 0 | NS |
| EPEC eaeA + S. enterica serotype Havana | 0 | 1 (1) | NS |
| ETEC (ST) + Aeromonas sp. | 1 (2) | 0 | NS |
| ETEC (ST) + S. enterica serotype Javiana + S. enterica serotype Havana | 1 (2) | 0 | NS |
| EAEC + S. enterica serotype Havana + Aeromonas sp. | 1 (2) | 0 | NS |
| S. enterica serotype Anatum + Aeromonas sp. | 1 (2) | 0 | NS |
| S. enterica serotype Give + Aeromonas sp. | 1 (2) | 0 | NS |
| Shigella flexneri + Yersinia enterocolitica | 1 (2) | 0 | NS |
Of the pretrip samples from 92 healthy subjects, one was positive for EAEC, one was positive for STEC stx2, and one was positive for an Aeromonas sp.
Fisher's exact test. NS, not significant.
Of the eight ETEC isolates found, two were from vaccinees and six were from controls (not significant).
S. enterica serotypes: Havana (one patient), Hadar (two patients), Javiana (two patients), Hadar and Javiana (one patient), Uganda (one patient), and 9,12:−:− (one patient).