Bacterial Disease Division, Animal, Plant, and Fisheries Quarantine and Inspection Agency, Anyang-ro 157, Anyang, Gyeonggi-do, 430-757, Republic of Korea.
Bacterial Disease Division, Animal, Plant, and Fisheries Quarantine and Inspection Agency, Anyang-ro 157, Anyang, Gyeonggi-do, 430-757, Republic of Korea.
J Dairy Sci. 2013 Apr;96(4):1997-2002. doi: 10.3168/jds.2012-5965. Epub 2013 Feb 22.
The objective of this study was to determine the prevalence of Acinetobacter spp. in bulk tank milk (BTM) samples from different provinces of Korea and to analyze their antimicrobial susceptibility. Altogether, 2,287 BTM samples were investigated. Among them, Acinetobacter spp. were isolated from 176 BTM samples. Out of 176 Acinetobacter spp., 57 isolates were identified as Acinetobacter baumannii. None of the isolates were resistant to cefepime, imipenem, meropenem, ciprofloxacin, levofloxacin, or colistin. Resistance to amikacin, gentamicin, piperacillin, and cefotaxime was 2.3, 7.4, 2.3, and 4.0%, respectively. Acinetobacter spp. were least susceptible to tetracycline (17.6%), followed by trimethoprim-sulfamethoxazole (15.9%), ceftazidime (10.8%), and ampicillin-sulbactam (10.2%). Overall, A. baumannii strains were susceptible to most of the antimicrobial agents tested compared with other Acinetobacter spp. The Acinetobacter isolates showed 17 different patterns of antimicrobial resistance. The most frequent resistance profile observed was ampicillin-sulbactam (n=13), followed by tetracycline (n=9), ceftazidime-tetracycline (n=8), and trimethoprim-sulfamethoxazole-tetracycline (n=8). The results of this study confirmed that Acinetobacter, including A. baumannii strains, are present in BTM, which clearly showed the importance of examining BTM not only for foodborne pathogens but also for Acinetobacter spp., which could be of public health concern. To the best of our knowledge, this is the first report of Acinetobacter spp. in BTM samples from Korea.
本研究的目的是确定来自韩国不同省份的散装奶（BTM）样本中不动杆菌属的流行情况，并分析其抗菌药物敏感性。共检测了 2287 份 BTM 样本。其中，176 份 BTM 样本分离出不动杆菌属。在 176 株不动杆菌属中，57 株鉴定为鲍曼不动杆菌。所有分离株均对头孢吡肟、亚胺培南、美罗培南、环丙沙星、左氧氟沙星和多粘菌素敏感。对阿米卡星、庆大霉素、哌拉西林和头孢噻肟的耐药率分别为 2.3%、7.4%、2.3%和 4.0%。不动杆菌属对四环素（17.6%）的敏感性最低，其次是甲氧苄啶-磺胺甲恶唑（15.9%）、头孢他啶（10.8%）和氨苄西林-舒巴坦（10.2%）。总体而言，与其他不动杆菌属相比，鲍曼不动杆菌菌株对大多数测试的抗菌药物敏感。不动杆菌分离株表现出 17 种不同的抗菌药物耐药模式。最常见的耐药模式是氨苄西林-舒巴坦（n=13），其次是四环素（n=9）、头孢他啶-四环素（n=8）和甲氧苄啶-磺胺甲恶唑-四环素（n=8）。本研究结果证实，包括鲍曼不动杆菌在内的不动杆菌属存在于 BTM 中，这清楚地表明不仅要检查 BTM 中是否存在食源性病原体，还要检查可能引起公共卫生关注的不动杆菌属。据我们所知，这是首次在韩国 BTM 样本中报道不动杆菌属。
