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Table 2 Distribution of diarrheagenic E. coli (DEC) isolated from children and adults attending health centers in Southeastern Brazil

From: High prevalence of diarrheagenic Escherichia coli carrying toxin-encoding genes isolated from children and adults in southeastern Brazil

DEC (type and genes) n = 130 Number (%) % of all patients (n = 327) No. of strains (%) p value
Children (n = 141) Adults (n = 186)
EAEC 76 23.2 32 (22.6) 44 (23.6) 0,8952
aatA 15 (19.7) 4.6 12 (8.5) 3 (1.6) 0.0027
 AA phenotype 60 (78.9) 18.3 26 (18.4) 34 (18.3) 1.0000
 CLA phenotype 16 (21.1) 4.9 4 (2.8) 12 (6.5) 0.1952
DAEC 42 12.8 18 (12.8) 24 (12.9) 0.3215
afa/dr 25 (59.5) 7.6 14 (9.9) 11 (5.9) 0.2091
 DA phenotype 17 (40.5) 5.2 4 (2.8) 13 (7.0) 0.7628
EPEC 10 3.1 8 (5.7) 2 (1.1) NDa
eae 10 (100) 3.1 8 (5.7) 2 (1.1) ND
eae + bfpA 0 0 0 0 ND
ETEC 2 0.6 0 2 (1.1) ND
elt 1 (50.0) 0 0 1 (0.5) ND
est 1 (50.0) 0 0 1 (0.5) ND
EIEC 0 0 0 0 ND
ipaH 0 0 0 0  
EHEC 0 0 0 0 ND
stx1or stx2 0 0 0 0  
Mixed infection 6 1.8 2 (1.4) 4 (2.2) 0.7024
 EAEC + DAEC 3 0.9 1 (0.7) 2 (1.1) ND
 EAEC + ETEC 1 0.3 0 1 (0.5) ND
 EAEC + aEPEC 1 0.3 0 1 (0.5) ND
 DAEC + aEPEC 1 0.3 1 (0.7) 0 ND
  1. aNot determined; p value in bold: significant (Fisher’s exact tests)