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Volume 14, Number 8—August 2008

Dispatch

Analysis of Collection of Hemolytic Uremic Syndrome–associated Enterohemorrhagic Escherichia coli

Alexander Mellmann*Comments to Author , Martina Bielaszewska*, Robin Köck*, Alexander W. Friedrich*, Angelika Fruth†, Barbara Middendorf*, Dag Harmsen‡, M. Alexander Schmidt§, and Helge Karch*
Author affiliations: *Institute for Hygiene and the National Consulting Laboratory on Hemolytic Uremic Syndrome, Münster, Germany; †Robert Koch Institute, Wernigerode, Germany; ‡Periodontology, Münster; §Center for Molecular Biology of Inflammation, Münster;

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Table 1

Clonal complexes, sequence types, and serotypes of non-O157 EHEC from patients with hemolytic uremic syndrome*

CC No. strains (%)† ST No. strains (%)† Serotype‡ (no. strains)§
29 89 (52.7) ST21 43 (25.4) O26:H11/H (fliCH11) (41), OR:H11 (1), Ont:Hnt (1)
ST29 30 (17.8) O26:H11/H (fliCH11) (29), OR:H11 (1)
ST27 1 (0.6) O26:H11
ST396 1 (0.6) O26:H11


ST16
14 (8.3)
O111:H8/H (fliCH8)
32 32 (18.9) ST32 30 (17.8) O145:H28/H (fliCH28)


ST137
2 (1.2)
O145:H (fliCH28)
20 16 (9.5) ST17 15 (8.9) O103:H2/H (fliCH2) (14), OR:H2 (1)


ST20
1 (0.6)
O119:H2
10 3 (1.8) ST43 1 (0.6) O111:H10


ST330
2 (1.2)
Ont:H
11
3 (1.8)
ST335
3 (1.8)
O55:H7
40
1 (0.6)
ST40
1 (0.6)
O112:H
69
1 (0.6)
ST69
1 (0.6)
O73:H18
101
1 (0.6)
ST101
1 (0.6)
O55:Hnt
155
1 (0.6)
ST56
1 (0.6)
O113:H21
469
1 (0.6)
ST679
1 (0.6)
O163:H19
NA
2 (1.2)
ST25
2 (1.2)
O128:H2
NA
2 (1.2)
ST678
2 (1.2)
O104:H4
NA
2 (1.2)
ST655
2 (1.2)
O121:H19
NA
1 (0.6)
ST329
1 (0.6)
O136:Hnt
NA 3 (1.8) ST342 2 (1.2) O145:H25/H (fliCH25)


ST659¶
1 (0.6)
O145:H (fliCH25)
NA
1 (0.6)
ST677
1 (0.6)
O174:H21
NA
1 (0.6)
ST39
1 (0.6)
O70:H8
NA
1 (0.6)
ST675
1 (0.6)
O76:H19
NA
3 (1.8)
ST442
3 (1.8)
O91:H21
NA
3 (1.8)
ST306
3 (1.8)
O98:H (2), OR:H(1)
NA 2 (0.6) ST672 2 (1.2) O104:H21 (1), Ont:H21 (1)

*CC, clonal complex; ST, sequence type; EHEC, enterohemorrhagic Escherichia coli; HUS, hemolytic uremic syndrome; NA, not assigned.
†% of strains of a CC and ST among all 169 non-O157 EHEC isolated from HUS patients.
‡H, nonmotile; OR, O rough (autoagglutinable strain); nt, not typeable by the E. coli O and H antisera used.
§Number of strains of the serotype that belonged to the respective ST; if no number is given, all strains of the serotype belonged to the respective ST.
¶ST659 is a single-locus variant of ST342.

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