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Volume 10, Number 5—May 2004

Research

Virulence Factors for Hemolytic Uremic Syndrome, Denmark1

Steen Ethelberg*Comments to Author , Katharina E. P. Olsen*, Flemming Scheutz*†, Charlotte Jensen*, Peter Schiellerup*, Jørgen Engberg*, Andreas Munk Petersen*, Bente Olesen*, Peter Gerner-Smidt*, and Kåre Mølbak*
Author affiliations: *Statens Serum Institut, Copenhagen, Denmark; †The World Health Organization International Escherichia Centre, Copenhagen, Denmark

Main Article

Table 1

Number of isolates, clinical outcome, virulence factors, and median age for the O groups of STEC patients, Denmarka

O group No. of isolates HUS Bloody diarrhea eae-positive stx1-positive stx2-positive ehxA-positive Median age
O157
81
11
56
80
31
81
80
12
O26
50
3
16
50
42
12
45
1
O103
45
1
21
44
45
0
44
4
Otherb
30
2
8
12
17
17
12
8
O rough
21
0
4
4
16
15
14
28
O117
19
0
1
0
19
0
1
32
O145
18
1
5
17
7
11
18
3
O146
18
0
4
0
13
15
11
48
O121
9
1
3
9
0
9
9
1
O91
7
0
0
0
6
5
4
25
O?c
7
0
0
1
4
3
3
25
O111
6
2
2
6
6
3
5
1
O128
6
0
0
0
6
5
5
31
O156
5
0
0
2
5
0
2
32
O55
4
0
1
2
4
0
0
3
O15
3
0
1
0
0
3
1
21
O70
3
0
0
3
2
1
3
1
O174
3
0
2
0
2
2
2
36
O5
2
0
1
1
2
0
2
30
O41
2
0
0
1
2
0
0
40
O76
2
0
0
0
2
0
1
42
O88
2
0
0
0
1
2
2
39
All 343 21 125 232 232 184 264 12

aSTEC, Shiga toxin–producing Escherichia coli; HUS, hemolytic uremic syndrome.
bIncludes all O groups that contained one isolate only.
cO?, O nontypeable.

Main Article

1Presented in part at the VTEC2003, 5th International Symposium on “Shiga Toxin (Verocytotoxin) Producing Escherichia coli Infections,” Edinburgh, Scotland, June 2003 (abstract O-6).

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