2007년 서울 지역에서 판매되고 있는 반찬류의 세균 오염과 항생제 내성실태

Assessment of Bacterial Contamination and Antibiotic Resistance Patterns in Ready-To-Eat Side Dishes in Seoul Area, 2007

The purpose of this research was to investigate the microbiological quality and antimicrobial susceptibilities of the ready-to-eat side dishes, which are were collected from the grocery stores, big markets, and department stores in Seoul throughout November, 2007. Of total 124 samples, presence of staphylococci and enteric bacilli was observed in 38 samples(31%) and 53 samples (43%), respectively. And 30 samples (24%) were shown to be of unsatisfactory quality for total bacterial count (>105). Antimicrobial susceptibilities of the staphylococci isolated from the side dishes were tested for six different antimicrobial agents, which are in widespread clinical use in Korea, as well as four new antimicrobials, daptomycin, linezolid, quinupristin/dalfopristin and tigecycline. As a result, the staphylococcal isolates were found to be resistant to oxacillin (MIC90, >128ug/ml), teicoplanin (MIC90, >128 ug/ml), mupirocin (MIC90, >128 ug/ml), linezolid (MIC90, 128 ug/ml) and quinupristin/dalfopristin (MIC90, 32 ug/ml). Especially, some of the staphylococcal isolates exhibited high level and multi-drug resistance. Moreover, these bacteria were also resistant to new antimicrobials, except tigecycline.