Antibiotic Resistance Profiles and Molecular Characteristics of bla CMY-2 -Carrying Salmonella enterica Serovar Albany Isolated from Chickens During 2013-2020 in South Korea.
Md Sekendar AliHyun-Ju SongBo-Youn MoonSu-Jeong KimHee Young KangDong Chan MoonYeon-Hee LeeDong-Hyeon KwonSoon-Seek YoonSuk Kyung LimPublished in: Foodborne pathogens and disease (2023)
The production of β-lactamase by nontyphoidal Salmonella has become a public health issue throughout the world. In this study, we aimed to investigate the antimicrobial resistance profiles and molecular characteristics of β-lactamase-producing Salmonella enterica serovar Albany isolates. A total of 434 Salmonella Albany were obtained from feces and carcasses of healthy and diseased food-producing animals [cattle ( n = 2), pigs ( n = 3), chickens ( n = 391), and ducks ( n = 38)] during 2013-2020. Among the 434 Salmonella Albany isolates, 3.7% showed resistance to cefoxitin, and all the cefoxitin-resistant isolates were obtained from chickens. Moreover, Salmonella Albany isolates demonstrated high resistance to nalidixic acid (99.3%), trimethoprim/sulfamethoxazole (97.9%), ampicillin (86.6%), chloramphenicol (86.6%), and tetracycline (85.7%), as well as higher rates of multidrug resistance were detected in cefoxitin-resistant isolates compared to cefoxitin-susceptible isolates. All cefoxitin-resistant isolates harbored CMY-2-type β-lactamase and belonged to seven different pulsotypes, with type IV-b (43.75%) and IV-a (25%) making up the majority. In addition, genes encoding cefoxitin resistant of all bla CMY-2 -harboring Salmonella Albany isolates were horizontally transmitted to a recipient Escherichia coli J53 by conjugation. Furthermore, 93.75% (15/16) of conjugative plasmids harboring bla CMY-2 genes belong to ST12/CC12-IncI1. Genetic characteristics of transmitted bla CMY-2 genes were associated with IS Ecp1 , which can play an essential role in the effective mobilization and expression of these genes. Salmonella Albany containing bla CMY-2 in chickens can potentially be transferred to humans. Therefore, it is necessary to restrict antibiotic use and conduct continuous monitoring and analysis of resistant bacteria in the poultry industry.
Keyphrases
- escherichia coli
- klebsiella pneumoniae
- listeria monocytogenes
- genetic diversity
- public health
- genome wide
- antimicrobial resistance
- heat stress
- biofilm formation
- poor prognosis
- multidrug resistant
- gene expression
- long non coding rna
- bioinformatics analysis
- cystic fibrosis
- staphylococcus aureus
- gram negative
- pseudomonas aeruginosa
- global health
- human health