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Macrolide susceptibilities of E. coli marR1 and its isogenic efflux-deficient derivativesa
| Strain | Macrolide susceptibilityb
|
|||||
|---|---|---|---|---|---|---|
| DTM | JOS | OLEAN | ROX | SPIR | TYL | |
| AG102 | 256 | >512 | >512 | 512 | >512 | >512 |
| AG102MB | 16 | 32 | 128 | 64 | 64 | 128 |
| HNCE4 | 16 | 4 | 256 | 128 | 64 | 64 |
Susceptibilities are reported as MICs in micrograms per milliliter.
Abbreviations: DTM, dirithromycin; JOS, josamycin; OLEAN, oleandomycin; ROX, roxithromycin; SPIR, spiramycin; TYL, tylosin.
