Volume 10, Number 6—June 2004
Research
Antimicrobial Resistance among Campylobacter Strains, United States, 1997–2001
Table 4
Antimicrobial resistance among Campylobacter isolates from retail chicken, by species, NARMS, 1999
| Antimicrobial agent | % Resistant |
|||
|---|---|---|---|---|
| C. jejuni (n = 62) | C. coli (n = 16) | Othera (n = 2) | ||
| Azithromycin |
6 |
0 |
0 |
|
| Chloramphenicol |
0 |
0 |
50 |
|
| Ciprofloxacin |
24 |
19 |
50 |
|
| Clindamycin |
5 |
0 |
0 |
|
| Erythromycin |
6 |
0 |
0 |
|
| Gentamicin |
0 |
6 |
0 |
|
| Nalidixic acid |
29 |
37 |
50 |
|
| Tetracycline | 69 | 50 | 50 | |
aOne isolate was undetermined (i.e., hippurate-negative Campylobacter that could not be further speciated by 16S polymerase chain reaction study), and one isolate was an unknown Campylobacter that could not be further characterized).


