Volume 10, Number 10—October 2004
Dispatch
Emerging Enteropathogenic Escherichia coli Strains?
Table 2
Prevalence of distinct combinations of virulence-related DNA sequences in eae+ EAF- stx- Escherichia coli strains outside the EPEC serogroups in three cities in Brazila
Genetic profileb | No. (%) of strains |
|||
---|---|---|---|---|
Total (n = 99) | São Paulo (n = 59) | Rio de Janeiro (n = 23) | Ribeirão Preto (n = 17) | |
eae | 31 (31.1) | 19 (32.2) | 5 (21.8) | 7 (41.1) |
eae hly astA pet irp2 | 8 (8.1) | 8 (13.6) | 0 | 0 |
eae hly | 6 (6.1) | 5 (8.5) | 0 | 1(5.9) |
eae shf | 5 (5.1) | 1(1.7) | 3 (13.1) | 1(5.9) |
eae irp2 | 5(5.1) | 4 (6.8) | 1(4.3) | 0 |
eae perA bfpA astA | 4 (4.0) | 1(1.7) | 3 (13.1) | 0 |
eae perA bfpA | 4 (4.0) | 0 | 4 (17.4) | 0 |
eae hly daaC afa astA pet irp2 | 3 (3.0) | 3 (5.1) | 0 | 0 |
eae perA | 3 (3.0) | 0 | 0 | 3 (17.6) |
eae perA hly astA pet irp2 | 2 (2.0) | 1(1.7) | 0 | 1(5.9) |
eae EHEC-hly astA | 2 (2.0) | 2 (3.4) | 0 | 0 |
eae astA irp2 | 2 (2.0) | 2(3.4) | 0 | 0 |
eae bfpA | 2 (2.0) | 1(1.7) | 1(4.3) | 0 |
eae EHEC-hly | 2 (2.0) | 0 | 2 (8.7) | 0 |
eae hly daaC afa pap sfa astA shf pet irp2 | 1(1.0) | 1(1.7) | 0 | 0 |
eae hly daaC afa shf irp2 | 1(1.0) | 1(1.7) | 0 | 0 |
eae perA bfpA hly pet | 1 (1.0) | 0 | 0 | 1(5.9) |
eae perA hly daaC afa | 1(1.0) | 0 | 0 | 1(5.9) |
eae perA bfpA astA irp2 | 1(1.0) | 1(1.7) | 0 | 0 |
eae hly pap afa irp2 | 1(1.0) | 0 | 1(4.3) | 0 |
eae hly daaC afa astA | 1(1.0) | 1(1.7) | 0 | 0 |
eae hly astA shf irp2 | 1(1.0) | 1(1.7) | 0 | 0 |
eae perA bfpA hly | 1(1.0) | 0 | 0 | 1(5.9) |
eae hly astA irp2 | 1(1.0) | 1(1.7) | 0 | 0 |
eae hly shf irp2 | 1(1.0) | 1(1.7) | 0 | 0 |
eae perA astA | 1(1.0) | 0 | 1(4.3) | 0 |
eae EHEC-hly bfpA | 1(1.0) | 1(1.7) | 0 | 0 |
eae hly shf | 1(1.0) | 1(1.7) | 0 | 0 |
eae hly irp2 | 1(1.0) | 1(1.7) | 0 | 0 |
eae hly astA | 1(1.0) | 1(1.7) | 0 | 0 |
eae astA shf | 1(1.0) | 0 | 0 | 1(5.9) |
eae shf irp2 | 1(1.0) | 0 | 1(4.3) | 0 |
eae astA | 1(1.0) | 1(1.7) | 0 | 0 |
eae cdt | 1(1.0) | 0 | 1(4.3) | 0 |
aEPEC, enteropathogenic Escherichia coli; EHEC, enterohemorrhagic E. coli.
bAll strains hybridized with the locus of enterocyte effacement (LEE) A, LEE B, LEE C, and LEE D probes constructed by McDaniel et al. (12), which suggested that they bear a complete LEE region.