Volume 13, Number 4—April 2007
Dispatch
16S rRNA Methylase–producing, Gram-Negative Pathogens, Japan
Kunikazu Yamane*, Jun-ichi Wachino*, Satowa Suzuki*, Naohiro Shibata*, Haru Kato*, Keigo Shibayama*, Kouji Kimura*, Kumiko Kai*, Satoshi Ishikawa*, Yoshiyuki Ozawa*, Toshifumi Konda*, and Yoshichika Arakawa*
Table 1
Gram-negative strains investigated during September and October, 2004
| Bacterial species | Strains, n |
Rate of 16S rRNA methylase-producing strains, % | ||
|---|---|---|---|---|
| Isolated | Resistant to all aminoglycosides tested | Harboring 16S rRNA methylase gene, n | ||
| Pseudomonas aeruginosa |
18,037 |
384 |
14 |
0.08 |
| Escherichia coli |
14,701 |
39 |
3 |
0.02 |
| Klebsiella spp. |
12,293 |
11 |
1 |
0.008 |
| Enterobacter spp. |
6,398 |
26 |
2 |
0.03 |
| Acinetobacter spp. |
3,116 |
33 |
4 |
0.12 |
| Serratia marcescens |
3,009 |
14 |
0 |
0 |
| Citrobacter spp. |
2,422 |
1 |
0 |
0 |
| Proteus spp. |
2,389 |
8 |
2 |
0.08 |
| Alcaligenes spp. |
443 |
0 |
0 |
0 |
| Other |
24,818 |
8 |
0 |
0 |
| Total | 87,626 | 527 | 26 | 0.03 |
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