Japanese Veterinary Antimicrobial Resistance Monitoring System (JVARM)
The monitoring of antimicrobial resistance was conducted on 4 agents that had efficacy on the streptococcal diseases from 2011 to 2014. Antimicrobial resistance was 0.0-92.6%, with the highest proportion of resistance observed for lincomycin (LCM), whereas the proportion of erythromycin (EM)-resistant strains remained lower than 10%. Given the fact that no bimodal MIC distribution was observed for florfenicol (FF), the proportion of resistance was not calculated. MIC values, however, were low (≤ 4) in all strains, suggesting that the susceptibility was maintained.