The Distribution of Cytotoxic Necrotizing Factors (CNF-1, CNF-2, CNF-3) and Cytolethal Distending Toxins (CDT-1, CDT-2, CDT-3, CDT-4) in Escherichia coli Isolates Isolated from Extraintestinal Infections and the Determination of their Phylogenetic Relationship by PFGE

Table 5

The distribution of factor-toxin genes of 156 ExPEC isolates by clinical origin/the virulence factor distributions in the urinary and nonurinary tract foci in CDT- and CNF-positive ExPEC isolates.

N (%) urinary system n = 121 (78)		N (%) nonurinary system n = 35 (22)
Isolates VFs	Urine (n = 121)	Wound (n = 11)	Blood (n = 9)	Sputum (n = 7)	Aspirate (n = 5)	CSF (n = 1)	Peritoneal fluid (n = 1)
cnf1	68 (56)	3 (27)	3 (32)	3 (43)	1 (20)	—	—
cnf2	10 (8)	1 (9)	1 (11)	—	—	—	—
cnf3	16 (13)	2 (18)	1 (11)	1 (14)	—	—	—
cnf1–cnf3	5 (4)	—	1 (11)	—	—	—	—
cdt1	12 (10)	—	2 (22)	2 (29)	2 (40)	1	1
cdt2	2 (2)	1 (9)	1 (11)	—	—	—	—
cdt3	2 (2)	—	—	1 (14)	1 (20)	—	—
cdt4	2 (2)	1 (9)	—	—	1 (20)	—	—
cdt1–cdt4	1 (1)	2 (18)	1 (11)	—	—	—	—
cnf1-cdt1	3 (2)	1 (9)	—	—	—	—	—