Volume 11, Number 8—August 2005
Dispatch
Drug-resistant Diarrheogenic Escherichia coli, Mexico
Teresa Estrada-García*
, Jorge F. Cerna*†, Leova Paheco-Gil‡§, Raúl F. Velázquez†, Theresa J. Ochoa¶, Javier Torres†, and Herbert L. DuPont¶#**
, Jorge F. Cerna*†, Leova Paheco-Gil‡§, Raúl F. Velázquez†, Theresa J. Ochoa¶, Javier Torres†, and Herbert L. DuPont¶#**Table 1
Diarrheogenic Escherichia coli (DE) isolated from patients with diarrhea
| DE group* | No. patients by DE group (%) | No. strains† by DE group | Strain genotypes and no. positive strains by gene(s) |
|---|---|---|---|
| ETEC | 17 (27) | 50 | lt = 29, st = 17, st-lt = 4 |
| EAEC | 16 (26) | 56 | aap-aggR-aatA = 56 |
| aEPEC | 13 (21) | 31 | eaeA = 31 |
| STEC | 11 (18) | 22 | stx2 = 9, stx1-eaeA = 9, stx1 = 3, stx1-eaeA-hlyA = 1 |
| EPEC | 3 (5) | 7 | eaeA-bfp = 7 |
| EIEC |
2 (3) |
4 |
ial = 4 |
| Total | 62 | 170 |
*ETEC, enterotoxigenic E. coli; EAEC, enteroaggregative E. coli; aEPEC, atypical enteropathogenic E. coli; STEC, Shiga toxin–producing E. coli; EPEC, enteropathogenic E. coli; EIEC, enteroinvasive E. coli.
†All diarrheogenic E. coli strains isolated from patients with diarrhea; in general, 5 E. coli strains were isolated from each patient.
