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Volume 10, Number 10—October 2004
Dispatch

Emerging Enteropathogenic Escherichia coli Strains?

Tânia A. Tardelli Gomes*Comments to Author , Kinue Irino†, Dennys M. Girão*‡§¶, Valéria BC Girão¶, Beatriz EC Guth*, Tânia MI Vaz*†, Fabiana C Moreira*, Silvia H Chinarelli#, and Mônica AM Vieira*
Author affiliations: *Universidade Federal de São Paulo, São Paulo, Brazil; †Instituto Adolfo Lutz, São Paulo, Brazil; ‡Universidade de São Paulo, São Paulo, Brazil; §Instituto Butantan, São Paulo, Brazil; ¶Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; and; #Instituto Adolfo Lutz, Ribeirão Preto, São Paulo, Brazil

Main Article

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.

Main Article

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