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从韩国家禽屠宰场分离出的非葡萄球菌的物种分布、抗菌药物耐药性和肠毒素谱

Species Distribution, Antimicrobial Resistance, and Enterotoxin Profiles of Non- Staphylococci Isolated from Poultry Slaughterhouses in Korea.

作者信息

Lim Ji Hyun, Park Ji Heon, Lee Gi Yong, Lee Jun Bong, Lee Kwang Jun, Yang Soo-Jin

机构信息

Department of Veterinary Microbiology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea.

Division of Zoonotic and Vector Borne Disease Research, National Institute of Health, Cheongju 28160, Korea.

出版信息

Food Sci Anim Resour. 2025 May;45(3):744-758. doi: 10.5851/kosfa.2024.e58. Epub 2025 May 1.

Abstract

Although non- staphylococci (NAS), such as coagulase-negative staphylococci (CoNS), can substantially affect human and animal health, information on NAS species distribution in poultry slaughterhouses and their antimicrobial resistance (AMR) profiles is limited. In this study, we analyzed the prevalence of NAS species and AMR profiles of NAS isolates collected from poultry slaughterhouses, including chicken carcasses and facility environments. In total, 100 NAS isolates were collected from six poultry slaughterhouses in Korea. The AMR patterns of the NAS species and the major genetic elements associated with AMR phenotypes, particularly methicillin and fluoroquinolone resistance, were determined. In addition, the prevalence of classical staphylococcal enterotoxin (SE, -) and toxic shock syndrome toxin-1 () genes among NAS isolates was examined. Among the 10 NAS species, coagulase-negative (n=49, 49%) was the most dominant species, followed by (n=16, 16%). The multiple drug resistance phenotype was identified in 67% (n=67) of the NAS isolates, with the highest resistance to erythromycin (66%) and clindamycin (62%). Furthermore, fluoroquinolone resistance was confirmed in 34 (34%) NAS isolates. Fifteen NAS isolates were -positive, harboring staphylococcal cassette chromosome (SCC) I (n=2), SCC IV (n=1), or non-typeable SCC types (n=12). Carriage of SE genes was detected in none of the NAS isolates, and was detected in only two CoNS strains. Our results suggest that NAS in poultry slaughterhouses can have potential role in the maintenance and transmission of AMR.

摘要

虽然非葡萄球菌(NAS),如凝固酶阴性葡萄球菌(CoNS),会对人类和动物健康产生重大影响,但关于家禽屠宰场中NAS菌种分布及其抗菌药物耐药性(AMR)概况的信息有限。在本研究中,我们分析了从家禽屠宰场收集的NAS菌种的流行情况以及NAS分离株的AMR概况,这些屠宰场包括鸡胴体和设施环境。总共从韩国的6家家禽屠宰场收集了100株NAS分离株。确定了NAS菌种的AMR模式以及与AMR表型相关的主要遗传元件,特别是对甲氧西林和氟喹诺酮的耐药性。此外,还检测了NAS分离株中经典葡萄球菌肠毒素(SE,-)和中毒性休克综合征毒素-1()基因的流行情况。在10种NAS菌种中,凝固酶阴性(n = 49,49%)是最主要的菌种,其次是(n = 16,16%)。67%(n = 67)的NAS分离株表现出多重耐药表型,对红霉素(66%)和克林霉素(62%)的耐药性最高。此外,在34株(34%)NAS分离株中证实了对氟喹诺酮的耐药性。15株NAS分离株为阳性,携带葡萄球菌盒式染色体(SCC)I(n = 2)、SCC IV(n = 1)或不可分型的SCC类型(n = 12)。在所有NAS分离株中均未检测到SE基因的携带情况,仅在两株CoNS菌株中检测到。我们的结果表明,家禽屠宰场中的NAS可能在AMR的维持和传播中发挥潜在作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/296e/12246901/098c74db18ee/kosfa-45-3-744-g1.jpg

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本文引用的文献

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