Table 1. Number and proportion of susceptible (S), resistant (R), multidrug-resistant (M), and nalidixic acid–resistant (Nal) Salmonella spp. isolates within different serotypes isolated from meat and humans, Denmark, July 1998–July 2002*.
Serotype | Domestic meat |
Imported meat |
Humans† |
||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
No. tested | % |
No. tested | % |
No. tested | % |
||||||||||
S | R | M | Nal | S | R | M | Nal | S | R | M | Nal | ||||
Typhimurium‡ |
1,508 |
73 |
21 |
6 |
1 |
138 |
34 |
24 |
42§ |
9§ |
1,886 |
61 |
20 |
19 |
3 |
Infantis‡ |
184 |
94 |
4 |
2 |
2 |
50 |
84 |
10 |
6 |
8§ |
|
|
|
|
|
Derby‡ |
163 |
55 |
44 |
1 |
1 |
34 |
32 |
59 |
9§ |
3 |
|
|
|
|
|
Heidelberg |
6 |
67 |
33 |
0 |
17 |
157 |
49 |
13 |
38 |
4 |
|
|
|
|
|
Hadar‡ |
38 |
74 |
26 |
0 |
11 |
113 |
1 |
53§ |
46§ |
81§ |
189 |
26 |
71 |
3 |
58 |
Enteritidis‡ |
91 |
90 |
9 |
1 |
4 |
50 |
84 |
16 |
0 |
10 |
1,706 |
92 |
7 |
0 |
4 |
Indiana‡ |
94 |
95 |
4 |
1 |
0 |
40 |
45 |
43§ |
13§ |
3 |
|
|
|
|
|
Newport |
2 |
0 |
100 |
0 |
100 |
78 |
28 |
51 |
21 |
60 |
59 |
88 |
7 |
5 |
5 |
Kottbus |
26 |
81 |
19 |
0 |
15 |
49 |
6 |
90 |
4 |
92 |
|
|
|
|
|
Dublin |
71 |
99 |
1 |
0 |
1 |
4 |
100 |
0 |
0 |
0 |
88 |
95 |
5 |
0 |
2 |
Anatum |
50 |
100 |
0 |
0 |
0 |
12 |
75 |
8 |
17 |
0 |
|
|
|
|
|
Saintpaul |
9 |
11 |
0 |
89 |
22 |
39 |
31 |
8 |
62 |
15 |
58 |
72 |
9 |
19 |
7 |
Regent |
47 |
0 |
100 |
0 |
100 |
1 |
0 |
100 |
0 |
0 |
|
|
|
|
|
Virchow |
3 |
100 |
0 |
0 |
0 |
39 |
44 |
36 |
21 |
49 |
95 |
35 |
56 |
9 |
62 |
Bredeney |
3 |
100 |
0 |
0 |
0 |
38 |
34 |
0 |
66 |
11 |
|
|
|
|
|
Other‡ |
690 |
71 |
24 |
5 |
5 |
256 |
56 |
24 |
20 |
17 |
|
|
|
|
|
Total | 2,985 | 74 | 22 | 4 | 4 | 1,078 | 42 | 30 | 28 | 26 | 4,081 | 73 | 17 | 9 | 7 |
*Only serotypes with ≥40 isolates are included. †Only subsets of selected serovar are routinely tested for susceptibility to antimicrobial agents. ‡Indicates serotypes with >30 samples from Danish produced meat and >30 samples from imported meat, which were statistically tested. §Indicates clinical significance.