Abstract
A total of 34 strains of Vibrio coli isolated from swine dysentery were examined for snesitivity to 31 antibacterial drugs, using the agar plate dilution method. They were incubated in an atmosphere containing 10% CO2. The results obtained are summarized as follows.
All the strains tested were proved to have high sensitivity to nitrofurans, chlortetracycline, tetracycline, oxytetracycline, and chloramphenicol. Most of them were relatively sensitive to polymyxin-B, colistin, aminobenzyl penicillin S, sulfa drugs, andcarbadox. There were some strains resistant to sulfa drugs. Most of the strains were inclined to be decreasingly sensitive to penicillin G, thiophenicol, fradiomycin, and kanamycin in the order listed. They were almost insensitive to mikamycin, novobiocin, hygromycin, bacitracin, streptomycin, and dihydrostreptomycin. In addition, there were not a few of them which showed a cross-resistance to macrolide antibiotics.
