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Drug-sensitivity test.
| E. coli | penicillin | florfenicol | ciprofloxacin | enrofloxacin | gentamicin |
|---|---|---|---|---|---|
| ATCC 8739 | S | S | S | S | I |
| E1 | R | R | R | R | R |
| E9 | R | R | R | R | I |
| E12 | R | R | R | R | S |
| E14 | R | R | S | R | S |
| E16 | R | R | R | R | S |
| E18 | R | R | R | R | R |
R, resistant strains; I, intermediate strains; S, sensitive strains.
