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Hua MM, Li J, Zheng J, Wang JJ, Liu C, Zhang Y, Zhang ZF, Cao XL, Shen H. Molecular Characteristics of Salmonella Spp. Responsible for Bloodstream Infections in a Tertiary Hospital in Nanjing, China, 2019-2021. Infect Drug Resist 2024; 17:2363-2377. [PMID: 38894888 PMCID: PMC11182758 DOI: 10.2147/idr.s459941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
Objective To investigate the clinical and molecular characteristics of Salmonella spp. causing bloodstream infections (BSIs) in our hospital. Methods We studied 22 clinical Salmonella isolates from BSIs and 16 from non-BSIs, performing antimicrobial susceptibility testing (AST) and whole genome sequencing (WGS). The analysis included serovars, antibiotic resistance genes (ARGs), virulence factors (VFs), sequence types (STs), plasmid replicons, and genetic relationships. We also assessed pathogenicity of the isolates causing BSIs through growth, biofilm formation, and anti-serum killing assays. Results WGS analysis identified 13 Salmonella serovars, with four responsible for BSIs. S. Enteritidis was the most prevalent serovar, involved in 19 (50.0%) cases. BSIs were caused by 17S. Enteritidis, two S. Typhimurium, two S. Munster and one S. Diguel. Of the 38 isolates, 27 (71.1%) exhibited high resistance to ampicillin, and 24 (63.2%) to ampicillin/sulbactam. Thirty-six types of ARGs were identified, with blaTEM-1B (n = 25, 65.8%) being the most frequent. Ten plasmid replicons were found; the combination of IncFIB(S)-IncFII(S)-IncX1 was the most common in S. Enteritidis (94.7%). Fifteen STs were identified, among which ST11 was the most prevalent and clonally disseminated, primarily responsible for BSIs. A total of 333 different VFs were detected, 177 of which were common across all strains. No significant differences were observed between the BSI and non-BSI isolates in terms of resistance rates, ARGs, plasmid replicons, and VFs, except for seven VFs. No strong pathogenicity was observed in the BSI-causing isolates. Conclusion BSIs were predominantly caused by clonally disseminated S. Enteritidis ST11, the majority of which carried multiple ARGs, VFs and plasmid replicons. This study provides the first data on clonally disseminated S. Enteritidis ST11 causing BSIs, highlighting the urgent need for enhanced infection control measures.
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Affiliation(s)
- Miao-Miao Hua
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, People’s Republic of China
| | - Jia Li
- Department of Laboratory Medicine, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, People’s Republic of China
| | - Jie Zheng
- Department of Laboratory Medicine, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, People’s Republic of China
| | - Jing-Jing Wang
- Department of Laboratory Medicine, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, People’s Republic of China
| | - Chang Liu
- Department of Laboratory Medicine, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, People’s Republic of China
| | - Yan Zhang
- Department of Laboratory Medicine, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, People’s Republic of China
| | - Zhi-Feng Zhang
- Department of Laboratory Medicine, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, People’s Republic of China
| | - Xiao-Li Cao
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, People’s Republic of China
- Department of Laboratory Medicine, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, People’s Republic of China
| | - Han Shen
- Department of Laboratory Medicine, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing, People’s Republic of China
- Department of Laboratory Medicine, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, People’s Republic of China
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Chen Y, Liu L, Guo Y, Chu J, Wang B, Sui Y, Wei H, Hao H, Huang L, Cheng G. Distribution and genetic characterization of fluoroquinolone resistance gene qnr among Salmonella strains from chicken in China. Microbiol Spectr 2024; 12:e0300023. [PMID: 38411972 PMCID: PMC10986518 DOI: 10.1128/spectrum.03000-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 11/06/2023] [Indexed: 02/28/2024] Open
Abstract
The prevalence and dissemination of the plasmid-mediated fluoroquinolone (FQ) resistance gene qnr in Salmonella are considered serious public health concerns worldwide. So far, no comprehensive large-scale studies have focused on the prevalence and genetic characteristics of the qnr gene in Salmonella isolated from chickens. Herein, this study aimed to investigate the prevalence, antimicrobial resistance (AMR) patterns, and molecular characteristics of chicken-originated qnr-positive Salmonella strains from chicken farms, slaughterhouses, and markets in 12 provinces of China in 2020-2021. The overall prevalence of the qnr gene was 21.13% (56/265), with the highest prevalence in markets (36.11%, 26/72), followed in farms (17.95%, 21/117), and slaughterhouses (10.53%, 9/76). Only the qnrS and qnrB genes were detected, and the prevalence rate of the qnrS gene (19.25%, 51/265) was higher than that of the qnrB gene (1.89%, 5/265). Whole genome sequencing identified 37 distinct AMR genes and 15 plasmid replicons, and the most frequent mutation in quinolone resistance determining regions was parC (T57S; 91.49%, 43/47). Meanwhile, four different qnrS and two qnrB genetic environments were discovered among 47 qnr-positive Salmonella strains. In total, 21.28% (10/47) of the strains were capable of conjugative transfer, and all were qnrS1-positive strains, with the majority of transferable plasmids being IncHI2 types (n = 4). Overall, the prevalence of qnr-positive Salmonella strains from chickens in China and their carriage of multiple resistance and virulence genes and transferable plasmids is a major concern, which calls for continuous surveillance of qnr-positive Salmonella and the development of measures to control its prevalence and transmission.IMPORTANCESalmonella is a common foodborne pathogen responsible for 155,000 deaths annually worldwide. Fluoroquinolones (FQs) are used as first-line drugs for the treatment of Salmonella infections in several countries and regions. However, the emergence and increasing prevalence of the FQ-resistant gene qnr in Salmonella isolated from chickens have been widely reported. Gaining insight into the genetic mechanisms of AMR genes in chicken could lead to the development of preventive measures to control and reduce the risk of drug resistance. In this study, we identified qnr-positive Salmonellae isolated from chickens in different regions of China and their AMR patterns and genome-wide characteristics, providing a theoretical basis for further control of their prevalence and transmission.
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Affiliation(s)
- Yang Chen
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Lihui Liu
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Yali Guo
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Jinhua Chu
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Bangjuan Wang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Yuxin Sui
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Hanqi Wei
- College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Haihong Hao
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Lingli Huang
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
| | - Guyue Cheng
- National Reference Laboratory of Veterinary Drug Residues (HZAU) and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei, China
- MOA Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei, China
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Han M, Chae M, Lee S, No K, Han S. Strain typing and antimicrobial susceptibility of Salmonella enterica Albany isolates from duck farms in South Korea. Heliyon 2024; 10:e27402. [PMID: 38486745 PMCID: PMC10937681 DOI: 10.1016/j.heliyon.2024.e27402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 02/21/2024] [Accepted: 02/28/2024] [Indexed: 03/17/2024] Open
Abstract
Salmonella enterica is distributed worldwide and is a common cause of bacterial food poisoning in humans and a serious public health problem. Although duck meat consumption has recently increased in Korea, studies on the epidemiological relationship between S. enterica contamination in duck farms are scarce. Salmonella enterica serovar Albany isolates recovered from duck farms were analyzed using two typing methods - IR Biotyper® (IRBT) and multilocus variable-number tandem repeat analysis (MLVA). The clustering results were compared with the epidemiological survey findings and the antimicrobial resistance profiles. From April 2019 to October 2020, 20 individual feces per farm from 5-6-week-old ducks were collected repeatedly from 105 duck farms. Salmonella spp. isolated from duck feces were identified using PCR and multilocus sequence typing to investigate the prevalence and distribution of the Salmonella serovars. The prevalence of S. enterica was 19%, and S. enterica Albany was the predominantly recovered isolate. The S. enterica Albany isolates underwent antimicrobial susceptibility testing to determine the minimum inhibitory concentration. MLVA and IRBT methods established relatedness and diversity among the S. enterica Albany isolates. Multidrug-resistant S. enterica Albany was distributed in all the farms. Antimicrobial resistance profiles reflected the duck farm characteristics and isolates recovered from the same farm showed an identical profile. Isolates repeatedly recovered from the same farm also showed identical IRBT clusters and MLVA groups. These findings suggest that the isolates remained on the duck farm and re-infected new duck flocks. Thus, proper cleaning and disinfection is required before the farms are repopulated.
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Affiliation(s)
- Mina Han
- Institute of Chungbuk Provincial Veterinary Service and Research, Cheongju, South Korea
| | - Munhui Chae
- Institute of Chungbuk Provincial Veterinary Service and Research, Cheongju, South Korea
| | - Sangkab Lee
- Institute of Chungbuk Provincial Veterinary Service and Research, Cheongju, South Korea
| | - Kyongok No
- Institute of Chungbuk Provincial Veterinary Service and Research, Cheongju, South Korea
| | - Seongtae Han
- Institute of Chungbuk Provincial Veterinary Service and Research, Cheongju, South Korea
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Zeng S, Huang Y, Zhang X, Fu L, Sun Z, Li X. Molecular characterization of IncFII plasmid carrying blaNDM-5 in a Salmonella enterica serovar Typhimurium ST34 clinical isolate in China. mSphere 2023; 8:e0048023. [PMID: 37909767 PMCID: PMC10732066 DOI: 10.1128/msphere.00480-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Accepted: 09/26/2023] [Indexed: 11/03/2023] Open
Abstract
IMPORTANCE In this study, an IncFII plasmid pIncFII-NDM5 carrying blaNDM-5 was found in carbapenem-resistant Salmonella enterica serovar Typhimurium (S. enterica serovar Typhimurium), which has conjugative transferability and carried blaNDM-5, bleMBL, mph(A), and blaTEM-1 four resistance genes that can mediate resistance to multiple antibiotics including cephalosporins, beta-lactamase inhibitor combinations, carbapenems, and macrolides. Phylogenetic analysis showed that 1104-65 and 1104-75 were closely related to other S. enterica serovar Typhimurium in this area. The above-mentioned S. enterica serovar Typhimurium chromosome carries blaCTX-M-55, qnrS1, and tet(A) genes, so the antibiotic resistance of isolates will be further enhanced after obtaining the pIncFII_NDM5-like plasmid. Meanwhile, we discovered a novel genetic structure of blaNDM-5 mediated by the IS26 composite transposon, which will expand our understanding of the emergence and spread of carbapenem-resistance genes. Altogether, the presence of the IncFII plasmid pIncFII-NDM5 further underscores the need for vigilant surveillance and appropriate infection control measures to mitigate the impact of carbapenem-resistant S. enterica serovar Typhimurium in clinical settings.
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Affiliation(s)
- Shihan Zeng
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Yulan Huang
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Xiwei Zhang
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Liang Fu
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Zhaohui Sun
- Department of Laboratory Medicine, General Hospital of Southern Theater Command, Guangzhou, China
| | - Xiaoyan Li
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
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Gao Y, Chen K, Lin R, Xu X, Xu F, Lin Q, Hu Y, Zhang H, Zhang J, Liao M, Qu X. High Levels of Antibiotic Resistance in MDR-Strong Biofilm-Forming Salmonella Typhimurium ST34 in Southern China. Microorganisms 2023; 11:2005. [PMID: 37630565 PMCID: PMC10458675 DOI: 10.3390/microorganisms11082005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/29/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Salmonella enterica subsp. enterica serovar Typhimurium (S. typhimurium) is an important zoonotic pathogen with important public health significance. To understand S. typhimurium's epidemiological characteristics in China, multi-locus sequence typing, biofilm-forming ability, antimicrobial susceptibility testing, and resistant genes of isolates from different regions and sources (human, food) were investigated. Among them, ST34 accounted for 82.4% (243/295), with ST19 ranking second (15.9%; 47/295). ST34 exhibited higher resistance levels than ST19 (p < 0.05). All colistin, carbapenem, and ciprofloxacin-resistant strains were ST34, as were most cephalosporin-resistant strains (88.9%; 32/36). Overall, 91.4% (222/243) ST34 isolates were shown to have multidrug resistance (MDR), while 53.2% (25/47) ST19 isolates were (p < 0.05). Notably, 97.8% (45/46) of the MDR-ACSSuT (resistance to Ampicillin, Chloramphenicol, Streptomycin, Sulfamethoxazole, and Tetracycline) isolates were ST34, among which 69.6% (32/46) of ST34 isolates were of human origin, while 30.4% (14/46) were derived from food (p < 0.05). Moreover, 88.48% (215/243) ST34 showed moderate to strong biofilm-forming ability compared with 10.9% (5/46) ST19 isolates (p < 0.01). This study revealed the emergence of high-level antibiotic resistance S. typhimurium ST34 with strong biofilm-forming ability, posing concerns for public health safety.
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Affiliation(s)
- Yuan Gao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; (Y.G.)
- Key Laboratory of Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Faculty of Health Sciences, University of Macau, Macau SAR 999078, China
- CAS Key Laboratory of Pathogenic Microbiology & Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Kaifeng Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; (Y.G.)
- Key Laboratory of Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Runshan Lin
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; (Y.G.)
- Key Laboratory of Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xuebin Xu
- Department of Microbiology, Shanghai Municipal Centre for Disease Control and Prevention, Shanghai 200015, China
| | - Fengxiang Xu
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; (Y.G.)
- Key Laboratory of Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Qijie Lin
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; (Y.G.)
- Key Laboratory of Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Yaping Hu
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; (Y.G.)
- Key Laboratory of Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Hongxia Zhang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; (Y.G.)
- Key Laboratory of Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Jianmin Zhang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; (Y.G.)
- Key Laboratory of Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Ming Liao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; (Y.G.)
- Key Laboratory of Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Department of Microbiology, Shanghai Municipal Centre for Disease Control and Prevention, Shanghai 200015, China
| | - Xiaoyun Qu
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; (Y.G.)
- Key Laboratory of Zoonoses, Ministry of Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Animal Infectious Diseases Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Key Laboratory of Livestock Disease Prevention of Guangdong Province (YDWS202204), Guangzhou 510642, China
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Hu M, Zhang Y, Huang X, He M, Zhu J, Zhang Z, Cui Y, He S, Shi X. PhoPQ Regulates Quinolone and Cephalosporin Resistance Formation in Salmonella Enteritidis at the Transcriptional Level. mBio 2023:e0339522. [PMID: 37184399 DOI: 10.1128/mbio.03395-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
Abstract
The two-component system (TCS) PhoPQ has been demonstrated to be crucial for the formation of resistance to quinolones and cephalosporins in Salmonella Enteritidis (S. Enteritidis). However, the mechanism underlying PhoPQ-mediated antibiotic resistance formation remains poorly understood. Here, it was shown that PhoP transcriptionally regulated an assortment of genes associated with envelope homeostasis, the osmotic stress response, and the redox balance to confer resistance to quinolones and cephalosporins in S. Enteritidis. Specifically, cells lacking the PhoP regulator, under nalidixic acid and ceftazidime stress, bore a severely compromised membrane on the aspects of integrity, fluidity, and permeability, with deficiency to withstand osmolarity stress, an increased accumulation of intracellular reactive oxygen species, and dysregulated redox homeostasis, which are unfavorable for bacterial survival. The phosphorylated PhoP elicited transcriptional alterations of resistance-associated genes, including the outer membrane porin ompF and the aconitate hydratase acnA, by directly binding to their promoters, leading to a limited influx of antibiotics and a well-maintained intracellular metabolism. Importantly, it was demonstrated that the cavity of the PhoQ sensor domain bound to and sensed quinolones/cephalosporins via the crucial surrounding residues, as their mutations abrogated the binding and PhoQ autophosphorylation. This recognition mode promoted signal transduction that activated PhoP, thereby modulating the transcription of downstream genes to accommodate cells to antibiotic stress. These findings have revealed how bacteria employ a specific TCS to sense antibiotics and combat them, suggesting PhoPQ as a potential drug target with which to surmount S. Enteritidis. IMPORTANCE The prevalence of quinolone and cephalosporin-resistant S. Enteritidis is of increasing clinical concern. Thus, it is imperative to identify novel therapeutic targets with which to treat S. Enteritidis-associated infections. The PhoPQ two-component system is conserved across a variety of Gram-negative pathogens, by which bacteria adapt to a range of environmental stimuli. Our earlier work has demonstrated the importance of PhoPQ in the resistance formation in S. Enteritidis to quinolones and cephalosporins. In the current work, we identified a global profile of genes that are regulated by PhoP under antibiotic stresses, with a focus on how PhoP regulated downstream genes, either positively or negatively. Additionally, we established that PhoQ sensed quinolones and cephalosporins in a manner of directly binding to them. These identified genes and pathways that are mediated by PhoPQ represent promising targets for the development of a drug potentiator with which to neutralize antibiotic resistance in S. Enteritidis.
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Affiliation(s)
- Mengjun Hu
- Department of Food Science & Technology, School of Agriculture & Biology, and State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Yuyan Zhang
- Department of Food Science & Technology, School of Agriculture & Biology, and State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaozhen Huang
- Department of Food Science & Technology, School of Agriculture & Biology, and State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Mu He
- Department of Food Science & Technology, School of Agriculture & Biology, and State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Jinyu Zhu
- Department of Food Science & Technology, School of Agriculture & Biology, and State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Zengfeng Zhang
- Department of Food Science & Technology, School of Agriculture & Biology, and State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Cui
- Department of Food Science & Technology, School of Agriculture & Biology, and State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Shoukui He
- Department of Food Science & Technology, School of Agriculture & Biology, and State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Xianming Shi
- Department of Food Science & Technology, School of Agriculture & Biology, and State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
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7
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Qin X, Zhang Z. Emergence of a Hybrid IncI1-Iα Plasmid-Encoded blaCTX-M-101 Conferring Resistance to Cephalosporins in Salmonella enterica Serovar Enteritidis. Microorganisms 2023; 11:1275. [PMID: 37317249 DOI: 10.3390/microorganisms11051275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/07/2023] [Accepted: 05/10/2023] [Indexed: 06/16/2023] Open
Abstract
The increasing resistance to cephalosporins in Salmonella poses a serious threat to public health. In our previous study, the blaCTX-M-101 gene, a new blaCTX-M variant, was first reported in Salmonella enterica serovar Enteritidis (S. Enteritidis). Here, we further analyzed the genome characterization, transferability, and resistance mechanism of one S. Enteritidis isolate (SJTUF14523) carrying blaCTX-M-101 from an outpatient in 2016 in Xinjiang, China. This strain was a multidrug resistance (MDR) isolate and exhibited resistance to ceftazidime (MIC = 64 μg/mL), cefotaxime (MIC = 256 μg/mL), and cefepime (MIC = 16 μg/mL). Phylogenetic analysis revealed that SJTUF14523 had a close relationship to another S. Enteritidis isolate from the United States. In the presence of plasmid p14523A, there were 8- and 2133-fold increases in the MICs of cephalosporins in Escherichia coli C600 in the conjugation. Gene cloning results indicated that blaCTX-M-101 was the decisive mechanism leading to ceftazidime and cefotaxime resistance that could make the MICs break through the resistance breakpoint. Plasmid sequencing revealed that the blaCTX-M-101 gene was located on an IncI1-Iα transferable plasmid (p14523A) that was 85,862 bp in length. Sequence comparison showed that p14523A was a novel hybrid plasmid that might have resulted from the interaction between a homologous region. Furthermore, we found a composite transposon unit composed of ISEcp1, blaCTX-M-101, and orf477 in p14523A. ISEcp1-mediated transposition was likely to play a key role in the horizontal transfer of blaCTX-M-101 among plasmids in S. Enteritidis. Collectively, these findings underline further challenges in the prevention and control of antibiotic resistance posed by new CTX-M-101-like variants in Salmonella.
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Affiliation(s)
- Xiaojie Qin
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zengfeng Zhang
- Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
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8
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Grudlewska-Buda K, Bauza-Kaszewska J, Wiktorczyk-Kapischke N, Budzyńska A, Gospodarek-Komkowska E, Skowron K. Antibiotic Resistance in Selected Emerging Bacterial Foodborne Pathogens-An Issue of Concern? Antibiotics (Basel) 2023; 12:antibiotics12050880. [PMID: 37237783 DOI: 10.3390/antibiotics12050880] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 04/30/2023] [Accepted: 05/07/2023] [Indexed: 05/28/2023] Open
Abstract
Antibiotic resistance (AR) and multidrug resistance (MDR) have been confirmed for all major foodborne pathogens: Campylobacter spp., Salmonella spp., Escherichia coli and Listeria monocytogenes. Of great concern to scientists and physicians are also reports of antibiotic-resistant emerging food pathogens-microorganisms that have not previously been linked to food contamination or were considered epidemiologically insignificant. Since the properties of foodborne pathogens are not always sufficiently recognized, the consequences of the infections are often not easily predictable, and the control of their activity is difficult. The bacteria most commonly identified as emerging foodborne pathogens include Aliarcobacter spp., Aeromonas spp., Cronobacter spp., Vibrio spp., Clostridioides difficile, Escherichia coli, Mycobacterium paratuberculosis, Salmonella enterica, Streptocccus suis, Campylobacter jejuni, Helicobacter pylori, Listeria monocytogenes and Yersinia enterocolitica. The results of our analysis confirm antibiotic resistance and multidrug resistance among the mentioned species. Among the antibiotics whose effectiveness is steadily declining due to expanding resistance among bacteria isolated from food are β-lactams, sulfonamides, tetracyclines and fluoroquinolones. Continuous and thorough monitoring of strains isolated from food is necessary to characterize the existing mechanisms of resistance. In our opinion, this review shows the scale of the problem of microbes related to health, which should not be underestimated.
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Affiliation(s)
- Katarzyna Grudlewska-Buda
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-094 Bydgoszcz, Poland
| | - Justyna Bauza-Kaszewska
- Department of Microbiology and Food Technology, Bydgoszcz University of Science and Technology, 85-029 Bydgoszcz, Poland
| | - Natalia Wiktorczyk-Kapischke
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-094 Bydgoszcz, Poland
| | - Anna Budzyńska
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-094 Bydgoszcz, Poland
| | - Eugenia Gospodarek-Komkowska
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-094 Bydgoszcz, Poland
| | - Krzysztof Skowron
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, 85-094 Bydgoszcz, Poland
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9
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Cao G, Zhao S, Kuang D, Hsu CH, Yin L, Luo Y, Chen Z, Xu X, Strain E, McDermott P, Allard M, Brown E, Meng J, Zheng J. Geography shapes the genomics and antimicrobial resistance of Salmonella enterica Serovar Enteritidis isolated from humans. Sci Rep 2023; 13:1331. [PMID: 36693882 PMCID: PMC9873609 DOI: 10.1038/s41598-022-24150-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 11/10/2022] [Indexed: 01/25/2023] Open
Abstract
Multidrug-resistant (MDR) Salmonella has been a long-standing challenge in public health and food safety. The prevalence of MDR S. Enteritidis, especially isolated from humans, in China is significantly higher than those from the U.S. and other countries. A dataset of 197 S. Enteritidis genomes, including 16 sequenced clinical isolates from China and 181 downloaded genomes of human isolates from the U.S., Europe, and Africa, was analyzed for genomic diversity, virulence potential, and antimicrobial resistance (AMR). Phylogenomic analyses identified four major well-supported clades (I-IV). While AMR genotype in the majority of isolates in clades I and IV displayed as pan-susceptible, 81.8% (9/11) and 22.4% (13/58) of isolates in clades III and II were MDR, respectively. It is noted that 77% (10/13) of MDR isolates in clade II were from China. The most common antimicrobial resistance genes (ARGs) carried by the Chinese isolates were aph(3')-IIa, blaCTX-M-55, and blaTEM-1B, whereas blaTEM-1B, sul1, sul2, drfA7, aph(3")-Ib/strA, and aph(6)-Id/strB were most often identified in those from Africa (clade III). Among the 14 plasmid types identified, IncX1 and IncFII(pHN7A8) were found exclusively in the Chinese MDR isolates, while IncQ1 was highly associated with the African MDR isolates. The spvRABCD virulence operon was present in 94.9% (187/197) of isolates tested and was highly associated with both the IncF (IncFII and IncFIB) plasmids. In addition, phylogenetic differences in distribution of Salmonella pathogenicity islands (SPIs), prophages and other accessory genes were also noted. Taken together, these findings provide new insights into the molecular mechanisms underpinning diversification of MDR S. Enteritidis.
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Affiliation(s)
- Guojie Cao
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, 20740, USA.
| | - Shaohua Zhao
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD, 20708, USA
| | - Dai Kuang
- Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Chih-Hao Hsu
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD, 20708, USA
| | - Lanlan Yin
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, 20740, USA
| | - Yan Luo
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, 20740, USA
| | - Zhao Chen
- Joint Institute for Food Safety and Applied Nutrition, Center for Food Safety & Security Systems, Department of Nutrition and Food Science, University of Maryland, College Park, MD, USA
| | - Xuebin Xu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Errol Strain
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD, 20708, USA
| | - Patrick McDermott
- Center for Veterinary Medicine, U.S. Food and Drug Administration, Laurel, MD, 20708, USA
| | - Marc Allard
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, 20740, USA
| | - Eric Brown
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, 20740, USA
| | - Jianghong Meng
- Joint Institute for Food Safety and Applied Nutrition, Center for Food Safety & Security Systems, Department of Nutrition and Food Science, University of Maryland, College Park, MD, USA
| | - Jie Zheng
- Center for Food Safety and Applied Nutrition, U.S. Food and Drug Administration, College Park, MD, 20740, USA.
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10
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State of Knowledge on the Acquisition, Diversity, Interspecies Attribution and Spread of Antimicrobial Resistance between Humans, Animals and the Environment: A Systematic Review. Antibiotics (Basel) 2022; 12:antibiotics12010073. [PMID: 36671275 PMCID: PMC9854550 DOI: 10.3390/antibiotics12010073] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 12/06/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
Resistance to antibiotics is considered one of the most urgent global public health concerns. It has considerable impacts on health and the economy, being responsible for the failure to treat infectious diseases, higher morbidity and mortality rates, and rising health costs. In spite of the joint research efforts between different humans, animals and the environment, the key directions and dynamics of the spread of antimicrobial resistance (AMR) still remain unclear. The aim of this systematic review is to examine the current knowledge of AMR acquisition, diversity and the interspecies spread of disease between humans, animals and the environment. Using a systematic literature review, based on a One Health approach, we examined articles investigating AMR bacteria acquisition, diversity, and the interspecies spread between humans, animals and the environment. Water was the environmental sector most often represented. Samples were derived from 51 defined animal species and/or their products A large majority of studies investigated clinical samples of the human population. A large variety of 15 different bacteria genera in three phyla (Proteobacteria, Firmicutes and Actinobacteria) were investigated. The majority of the publications compared the prevalence of pheno- and/or genotypic antibiotic resistance within the different compartments. There is evidence for a certain host or compartment specificity, regarding the occurrence of ARGs/AMR bacteria. This could indicate the rather limited AMR spread between different compartments. Altogether, there remains a very fragmented and incomplete understanding of AMR acquisition, diversity, and the interspecies spread between humans, animals and the environment. Stringent One Health epidemiological study designs are necessary for elucidating the principal routes and dynamics of the spread of AMR bacteria between humans, animals and the environment. This knowledge is an important prerequisite to develop effective public health measures to tackle the alarming AMR situation.
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11
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Characterization of the Role of Two-Component Systems in Antibiotic Resistance Formation in Salmonella enterica Serovar Enteritidis. mSphere 2022; 7:e0038322. [PMID: 36286534 PMCID: PMC9769886 DOI: 10.1128/msphere.00383-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
The two-component system (TCS) is one of the primary pathways by which bacteria adapt to environmental stresses such as antibiotics. This study aimed to systematically explore the role of TCSs in the development of multidrug resistance (MDR) in Salmonella enterica serovar Enteritidis. Twenty-six in-frame deletion mutants of TCSs were generated from S. Enteritidis SJTUF12367 (the wild type [WT]). Antimicrobial susceptibility tests with these mutants revealed that 10 TCSs were involved in the development of antibiotic resistance in S. Enteritidis. In these 10 pairs of TCSs, functional defects in CpxAR, PhoPQ, and GlnGL in various S. Enteritidis isolates led to a frequent decrease in MIC values against at least three classes of clinically important antibiotics, including cephalosporins and quinolones, which indicated the importance of these TCSs to the formation of MDR. Interaction network analysis via STRING revealed that the genes cpxA, cpxR, phoP, and phoQ played important roles in the direct interaction with global regulatory genes and the relevant genes of efflux pumps and outer membrane porins. Quantitative reverse transcription-PCR analysis further demonstrated that the increased susceptibility to cephalosporins and quinolones in ΔphoP and ΔcpxR mutant cells was accompanied by increased expression of membrane porin genes (ompC, ompD, and ompF) and reduced expression of efflux pump genes (acrA, macB, and mdtK), as well as an adverse transcription of the global regulatory genes (ramA and crp). These results indicated that CpxAR and PhoPQ played an important role in the development of MDR in S. Enteritidis through regulation of cell membrane permeability and efflux pump activity. IMPORTANCE S. Enteritidis is a predominant Salmonella serotype that causes human salmonellosis and frequently exhibits high-level resistance to commonly used antibiotics, including cephalosporins and quinolones. Although TCSs are known as regulators for bacterial adaptation to stressful conditions, which modulates β-lactam resistance in Vibrio parahaemolyticus and colistin resistance in Salmonella enterica serovar Typhimurium, there is little knowledge of their functional mechanisms underlying the development of antibiotic resistance in S. Enteritidis. Here, we systematically identified the TCS elements in S. Enteritidis SJTUF12367, revealed that the three TCSs CpxAR, PhoPQ, and GlnGL were crucial for the MDR formation in S. Enteritidis, and preliminarily illustrated the regulatory functions of CpxAR and PhoPQ for antimicrobial resistance genes. Our work provides the basis to understand the important TCSs that regulate formation of antibiotic resistance in S. Enteritidis.
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12
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Phylogenomic Analysis of Salmonella enterica Serovar Indiana ST17, an Emerging Multidrug-Resistant Clone in China. Microbiol Spectr 2022; 10:e0011522. [PMID: 35862948 PMCID: PMC9430114 DOI: 10.1128/spectrum.00115-22] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Salmonella enterica serovar Indiana (S. Indiana) is an extremely expanded foodborne pathogen in China in recent years. This study aimed to elucidate the national prevalence and phylogenomic characterization of this pathogen in China. Among 5, 287 serotyped Salmonella isolates collected during 2002 to 2018, 466 S. Indiana isolates were found in 15 provinces, and 407 were identified to be ST17, and the rest were ST2040. Among 407 ST17 isolates, 372 (91.4%) were multidrug resistant, and 366 (89.9%) were resistant to ciprofloxacin, 235 (57.7%) were further resistant to ceftriaxone. Phylogenomic analysis revealed that ST17 isolates were classified into four clades (I, II, III and IV), which appeared in international clonal dissemination. ST17 isolates from China fell into Clade IV with part of isolates from the United Kingdom, the United States, South Korea, and Thailand, suggesting their close genetic relationship. Mutations in quinolone resistance-determining regions (QRDR) of GyrA and ParC, and plasmid-mediated quinolone resistance (PMQR) genes aac(6′)-Ib-cr, oqxAB, and qnrS as well as extended spectrum β-lactamases (ESBL) genes blaCTX-M, blaOXA, and blaTEM in isolates from Clade IV were much higher than those from other three clades. Various blaCTX-M subtypes (blaCTX-M-65, blaCTX-M-55, blaCTX-M-27, blaCTX-M-14, and blaCTX-M-123) with ISEcp1, IS903B, ISVsa5, and IS1R were found in ST17 isolates, especially Tn1721 containing ΔISEcp1-blaCTX-M-27-IS903B in P1-like bacteriophage plasmids. These findings on the prevalent and genomic characterization for the S. Indiana multidrug-resistant ST17 clone in China, which have not been reported yet, provide valuable insights into the potential risk of this high-resistant clone. IMPORTANCE Fluoroquinolones and cephalosporins are the primary choices for severe salmonellosis treatment. S. Indiana has become one of the most prevalent serovars in breeding poultry and poultry meats in China in recent years. ST17 was recognized as the leading epidemiological importance in S. Indiana because of its high-level resistance to the most of common antibiotics, including ciprofloxacin and ceftriaxone. However, the prevalence and phylogenomic characterization of ST17 isolates are unclear. Here, we did a retrospective screening on a large scale for S. Indiana in China, and performed its phylogenomic analysis. It was found that ST17 isolates had extensive spread in 15 provinces of China and became a multidrug-resistant clone. The international spread of the ST17 isolates was observed among several countries, especially China, the United Kingdom, and the United States. Our study emphasized the importance of surveillance of a high-resistant S. Indiana ST17 clone to combat its threat to public health.
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Zeng S, Zhuo Z, Huang Y, Luo J, Feng Y, Gong B, Huang X, Wu A, Zhuo C, Li X. Prevalence of Chromosomally Located blaCTX-M-55 in Salmonella Typhimurium ST34 Isolates Recovered from a Tertiary Hospital in Guangzhou, China. Microbiol Spectr 2022; 10:e0277121. [PMID: 35616373 PMCID: PMC9241639 DOI: 10.1128/spectrum.02771-21] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 04/01/2022] [Indexed: 12/31/2022] Open
Abstract
Nontyphoidal Salmonella (NTS) is one of the most prevalent bacterial causes of gastrointestinal infections worldwide. Meanwhile, the detection rate of CTX-M-55 ESBL-positive has increased gradually in China. To identify the molecular epidemiological and genomic characteristics of blaCTX-M-55-carrying nontyphoidal Salmonella (NTS) clinical isolates, a total of 105 NTS isolates were collected from a Chinese tertiary hospital. Antimicrobial susceptibility testing was performed to determine the resistance phenotype. Whole-genome sequencing and bioinformatics analysis were used to determine the antimicrobial resistance genes, serotypes, phylogenetic relationships, and the genetic environment of the blaCTX-M-55 gene. The results showed that among the 22 ceftriaxone resistant isolates, the blaCTX-M-55 was the most common β-Lactamase gene carried by 14 isolates, including serotypes S. Typhimurium (10/14), S. Muenster (2/14), S. Rissen (1/14), and S. Saintpaul (1/14). Phylogenetic analysis shows that 10 blaCTX-M-55-positive S. Typhimurium ST34 isolates were divided into two clusters. The genetic relationship of isolates in each cluster was very close (≤10 cgMLST loci). The blaCTX-M-55 gene was located on the chromosome in 10 isolates, on IncI1 plasmid in three isolates, and IncHI2 plasmid in one isolate. In conclusion, the blaCTX-M-55 gene, mainly located on the chromosome of S. Typhimurium ST34 isolates, was the main driving force associated with the resistance of NTS to cephalosporins. Therefore, close attention to the clonal dissemination of blaCTX-M-55-carrying S. Typhimurium ST34 in clinical settings must be monitored carefully. IMPORTANCE ESCs are the first choice for treating NTS infections. However, ESBLs and AmpC β-lactamases are the most typical cause for ESCs resistance. The CTX-M-55 ESBL-positive rate has gradually increased in the clinic in recent years. At present, the research about blaCTX-M-55-positive Salmonella mainly focuses on the foodborne animals or the environment while less on clinical patients. Thus, this study was carried out for identifying molecular epidemiological and genomic characteristics of blaCTX-M-55-carrying NTS clinical isolates. The results showed that the blaCTX-M-55 gene, mainly located on the chromosome of S. Typhimurium ST34 isolates from Conghua District, was the main driving force associated with the resistance of NTS to cephalosporins. Therefore, our work highlights the importance of monitoring the clonal dissemination of blaCTX-M-55-carrying S. Typhimurium ST34 in clinical settings.
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Affiliation(s)
- Shihan Zeng
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, China
| | - Zhenxu Zhuo
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Yulan Huang
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Jiajun Luo
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Yulian Feng
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Baiyan Gong
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Xiyi Huang
- Department of Clinical Laboratory, The Affiliated Shunde Hospital of Guangzhou Medical University (Lecong Hospital of Shunde District), Foshan, China
| | - Aiwu Wu
- Guangzhou Key Laboratory for Clinical Rapid Diagnosis and Early Warning of Infectious Diseases, KingMed School of Laboratory Medicine, Guangzhou Medical University, Guangzhou, China
| | - Chao Zhuo
- State Key Laboratory of Respiratory Disease, First Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Xiaoyan Li
- Department of Clinical Laboratory, Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
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14
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Chen K, Gao Y, Li L, Zhang W, Li J, Zhou Z, He H, Chen Z, Liao M, Zhang J. Increased Drug Resistance and Biofilm Formation Ability in ST34-Type Salmonella Typhimurium Exhibiting Multicellular Behavior in China. Front Microbiol 2022; 13:876500. [PMID: 35369456 PMCID: PMC8972162 DOI: 10.3389/fmicb.2022.876500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 02/28/2022] [Indexed: 11/29/2022] Open
Abstract
Salmonella Typhimurium is an important food-borne pathogen. In this paper, multicellular behavior and associated characteristics of S. Typhimurium isolated from human and animal source food were studied. All the S. Typhimurium strains exhibiting multicellular behavior (100%) belonged to the ST34 type. In addition, most of the ST34-type multicellular behavior S. Typhimurium strains had a human origin (69.11%) and 98% of the ST34-type multicellular behavior strains exhibited strong biofilm formation capacity, which was much higher than that of non-multicellular behavior strains (7%, P < 0.01). Antibiotic resistance in ST34-type multicellular behavior strains was significantly higher than in strains with non-multicellular behavior for most conventional drugs (P < 0.05); notably, Polymyxin B (8%) and Imipenem (1%) resistances were also observed in the ST34-type strains. Furthermore, all the ST34-type multicellular behavior strains (100%) exhibited Multiple Drug Resistance (resistance to ≥3antibiotics), which was much higher than that of the non-multicellular behavior strains (P < 0.05). Consistent with the drug-resistant phenotype, the carrying rates of most drug-resistant genes in ST34-type multicellular behavior strains were higher than that those in non-multicellular behavior strains (P < 0.05). Therefore, this study revealed the emergence of a prevalent ST34-type multicellular behavior S. Typhimurium strains with increased biofilm formation ability and drug resistance rate, which poses a threat to public health safety, and highlights the need for comprehensive monitoring of the strains.
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Affiliation(s)
- Kaifeng Chen
- Center of Emerging and Zoonotic Diseases, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Yuan Gao
- Center of Emerging and Zoonotic Diseases, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Lili Li
- Center of Emerging and Zoonotic Diseases, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Weixiao Zhang
- Center of Emerging and Zoonotic Diseases, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jiayi Li
- Center of Emerging and Zoonotic Diseases, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zhouping Zhou
- Center of Emerging and Zoonotic Diseases, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Haishan He
- Center of Emerging and Zoonotic Diseases, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zeluan Chen
- Center of Emerging and Zoonotic Diseases, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Ming Liao
- Center of Emerging and Zoonotic Diseases, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China
- *Correspondence: Ming Liao,
| | - Jianmin Zhang
- Center of Emerging and Zoonotic Diseases, National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangdong Laboratory for Lingnan Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
- Jianmin Zhang,
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15
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Agostinho Davanzo EF, dos Santos RL, Castro VHDL, Palma JM, Pribul BR, Dallago BSL, Fuga B, Medeiros M, Titze de Almeida SS, da Costa HMB, Rodrigues DDP, Lincopan N, Perecmanis S, Santana AP. Molecular characterization of Salmonella spp. and Listeria monocytogenes strains from biofilms in cattle and poultry slaughterhouses located in the federal District and State of Goiás, Brazil. PLoS One 2021; 16:e0259687. [PMID: 34767604 PMCID: PMC8589217 DOI: 10.1371/journal.pone.0259687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 10/23/2021] [Indexed: 10/26/2022] Open
Abstract
Listeria monocytogenes and Salmonella spp. are considered important foodborne pathogens that are commonly associated with foods of animal origin. The aim of this study was to perform molecular characterization of L. monocytogenes and Salmonella spp. isolated from biofilms of cattle and poultry slaughterhouses located in the Federal District and State of Goiás, Brazil. Fourteen L. monocytogenes isolates and one Salmonella sp. were detected in poultry slaughterhouses. No isolates were detected in cattle slaughterhouses. All L. monocytogenes isolates belonged to lineage II, and 11 different pulsotypes were detected. Pulsed-field gel electrophoresis analysis revealed the dissemination of two strains within one plant, in addition to the regional dissemination of one of them. The Salmonella isolate was identified via whole genome sequencing as Salmonella enterica serovar Minnesota ST548. In the sequence analysis, no premature stop codons were detected in the inlA gene of Listeria. All isolates demonstrated the ability to adhere to Caco-2 cells, while 50% were capable of invading them. Antimicrobial resistance was detected in 57.1% of the L. monocytogenes isolates, and resistance to sulfonamide was the most common feature. The tetC, ermB, and tetM genes were detected, and four isolates were classified as multidrug-resistant. Salmonella sp. was resistant to nine antimicrobials and was classified as multidrug-resistant. Resistance genes qnrB19, blaCMY-2, aac(6')-Iaa, sul2, and tetA, and a mutation in the parC gene were detected. The majority (78.5%) of the L. monocytogenes isolates were capable of forming biofilms after incubation at 37°C for 24 h, and 64.3% were capable of forming biofilms after incubation at 12°C for 168 h. There was no statistical difference in the biofilm-forming capacity under the different evaluated conditions. Salmonella sp. was capable of forming biofilms at both tested temperatures. Biofilm characterization was confirmed by collecting the samples consistently, at the same sampling points, and by assessing biofilm formation in vitro. These results highlight the potential risk of cross-contamination in poultry slaughterhouses and the importance of surveillance and pathogen control maintenance programs within the meat production industry.
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Affiliation(s)
| | | | | | - Joana Marchesini Palma
- Faculty of Agronomy and Veterinary Medicine, University of Brasília (UnB), Brasília, DF, Brazil
| | - Bruno Rocha Pribul
- National Reference Laboratory for Bacterial Enteric Infections, Oswaldo Cruz Institute, Manguinhos, Rio de Janeiro, RJ, Brazil
| | | | - Bruna Fuga
- Laboratory of Bacterial Resistance and Therapeutic Alternatives, Biomedical Sciences Institute, University of São Paulo, São Paulo, SP, Brazil
| | - Margareti Medeiros
- Faculty of Agronomy and Veterinary Medicine, University of Brasília (UnB), Brasília, DF, Brazil
| | | | | | - Dália dos Prazeres Rodrigues
- National Reference Laboratory for Bacterial Enteric Infections, Oswaldo Cruz Institute, Manguinhos, Rio de Janeiro, RJ, Brazil
| | - Nilton Lincopan
- Laboratory of Bacterial Resistance and Therapeutic Alternatives, Biomedical Sciences Institute, University of São Paulo, São Paulo, SP, Brazil
| | - Simone Perecmanis
- Faculty of Agronomy and Veterinary Medicine, University of Brasília (UnB), Brasília, DF, Brazil
| | - Angela Patrícia Santana
- Faculty of Agronomy and Veterinary Medicine, University of Brasília (UnB), Brasília, DF, Brazil
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16
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Molecular characterisation of antimicrobial resistance determinants and class 1 integrons of Salmonella enterica subsp. enterica serotype Enteritidis strains from retail food in China. Food Control 2021. [DOI: 10.1016/j.foodcont.2021.108191] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Zhang Z, Chang J, Xu X, Zhou M, Shi C, Liu Y, Shi X. Dissemination of IncFII plasmids carrying fosA3 and bla CTX-M-55 in clinical isolates of Salmonella enteritidis. Zoonoses Public Health 2021; 68:760-768. [PMID: 34089241 DOI: 10.1111/zph.12825] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 02/05/2021] [Accepted: 02/05/2021] [Indexed: 11/28/2022]
Abstract
Multidrug-resistant Salmonella Enteritidis (S. Enteritidis) isolates have become a significant threat to public health, and fosfomycin has been proposed as one of the therapeutic antibiotics for serious infections by resistant pathogens. In this study, a total of 501 clinical S. Enteritidis isolates were screened and 14 (2.8%) isolates exhibited resistance to fosfomycin (MIC ≥ 1,024 μg/mL) as well as ceftriaxone (MIC ≥ 128 μg/mL). The fosA3 gene was identified in these 14 isolates. The fosA3 gene that co-transferred with blaCTX-M-55 was observed on the IncFII plasmids with sizes of ~ 78 (n = 7) or ~ 111 (n = 2) kbp in 9 transconjugants. The fosA3-bearing plasmid p12367A is 111,764 bp in length and possessed a typical IncFII backbone. A 7.6-kbp multidrug resistance region (MRR) was identified in p12367A, which was comprised of fosA3 and blaCTX-M-55 genes interspersed with ΔISEcp1 and three copies of IS26. Two typical antibiotic resistance determinants (IS26-orf3-orf2-orf1-fosA3-IS26 and IS26-orf477-blaCTX-M-55 -ΔISEcp1-IS26) shared one IS26 in the MRR. The genetic arrangement of the MRR may have resulted from the stepwise integration of IS26 mobile elements via homologous recombination. Horizontal transfer of IncFII plasmids might contribute to the dissemination of fosA3 and blaCTX-M-55 resistance genes in S. Enteritidis interspecies. These findings underline further challenges for the prevention and treatment of Enterobacteriaceae infections posed by epidemic IncFII plasmids bearing fosA3-blaCTX-M-55 .
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Affiliation(s)
- Zengfeng Zhang
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Jiang Chang
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Xuebin Xu
- Laboratory of Microbiology, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Min Zhou
- School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Chunlei Shi
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Yanhong Liu
- Molecular Characterization of Foodborne Pathogens Research Unit, Eastern Regional Research Center, ARS-USDA, PA, USA
| | - Xianming Shi
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
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18
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Li C, Zhang Z, Xu X, He S, Zhao X, Cui Y, Zhou X, Shi C, Liu Y, Zhou M, Shi X. Molecular Characterization of Cephalosporin-Resistant Salmonella Enteritidis ST11 Isolates Carrying blaCTX-M from Children with Diarrhea. Foodborne Pathog Dis 2021; 18:702-711. [PMID: 33534635 DOI: 10.1089/fpd.2020.2878] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Salmonella Enteritidis is an important foodborne pathogen with high prevalence of resistance to cephalosporins, imposing a serious threat to public health. Therefore, a total of 162 Salmonella Enteritidis isolates collected from child patients in China from 2007 to 2017 were characterized for their resistance to cephalosporins and investigated the transmission characteristics of cephalosporin resistance gene. We found that 15 (9.26%) isolates were all resistant to cefalotin (minimum inhibitory concentration [MIC] ≥512 μg/mL), ceftazidime (MIC 16-128 μg/mL), ceftriaxone (MIC 64 to ≥512 μg/mL), ceftiofur (MIC 64-256 μg/mL), and cefotaxime (MIC 64 to ≥512 μg/mL) with the possession of cephalosporin resistance genes blaCTX-M-55 (n = 13), blaCTX-M-101 (n = 1), and blaCTX-M-153 (n = 1). Molecular typing further revealed that these 15 isolates belonged to sequence type ST11 and shared close pulsed-field gel electrophoresis patterns, suggesting the possibility of clonal spread in Salmonella Enteritidis interspecies. Furthermore, conjugation experiments were successfully performed in 13 of 15 isolates, and blaCTX-M-55 was present on conjugative plasmids with sizes ranging from 54.7 to 173.4 kb. Compared with recipient Escherichia coli C600, transconjugants conferred elevated MICs for cephalosporins ranging from 2- to 2048-fold. The genetic structure surrounding of blaCTX-M-55 gene in transconjugants were ΔISEcp1-blaCTX-M-55-orf477 (n = 8) and ISEcp1-blaCTX-M-55-orf477 (n = 3), respectively. Taken together, blaCTX-M on the plasmids might contribute to cephalosporin resistance in Salmonella Enteritidis, and conjugative transfer of blaCTX-M-55 might facilitate the spread of cephalosporin resistance in Salmonella Enteritidis. Hence, effective mitigation measurements are needed to reduce the threat caused by cephalosporin-resistant Salmonella Enteritidis to public health.
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Affiliation(s)
- Congcong Li
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Zengfeng Zhang
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Xuebin Xu
- Department of Microbiology, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Shoukui He
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Xiaodong Zhao
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Cui
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Xiujuan Zhou
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Chunlei Shi
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Yanhong Liu
- Molecular Characterization of Foodborne Pathogens Research Unit, Eastern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture, Wyndmoor, Pennsylvania, USA
| | - Min Zhou
- Department of Food Quality and Safety, School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
| | - Xianming Shi
- Department of Food Science & Technology, School of Agriculture and Biology, State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
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19
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Cao C, Niu Q, Chen J, Xu X, Sheng H, Cui S, Liu B, Yang B. Epidemiology and Characterization of CTX-M-55-Type Extended-Spectrum β-Lactamase-Producing Salmonella enterica Serovar Enteritidis Isolated from Patients in Shanghai, China. Microorganisms 2021; 9:microorganisms9020260. [PMID: 33513880 PMCID: PMC7912593 DOI: 10.3390/microorganisms9020260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 11/16/2022] Open
Abstract
The emergence of extended-spectrum β-lactamase-producing Salmonella enterica serovar Enteritidis (ESBL-SE) in humans and foods has gained global attention. In particular, CTX-M-type ESBL-SE are increasingly being detected from various sample types. The aim of this study was to comprehensively analyze the epidemiology and characteristics of blaCTX-M-55-carrying ESBL-SE isolates of clinical origin in Shanghai, China. A total of 292 S. Enteritidis isolates were recovered from the feces and blood of outpatients and inpatients between 2006 and 2014. Overall, there was a high frequency of cefotaxime-resistant isolates (97.3%), which was significantly higher (p < 0.01) than that of isolates resistant to the other tested antibiotics. All S. Enteritidis isolates exhibited resistance to ≥1 antibiotic, and 98.0% were multidrug resistant. A total of 233 isolates were identified as ESBL-SE, 166 of which were CTX-M type. Six subtypes of CTX-M-encoding genes were detected, among which blaCTX-M-55 (91.6%, 152/166) was the most prevalent genotype. There was high genetic similarity among blaCTX-M-55-positive ESBL-SE. The blaCTX-M-55 gene in the ESBL-SE donor strains could be easily transferred into Enterobacteriaceae recipient strains. This study highlights that CTX-M-55 should be considered an important surveillance target in Shanghai, China. Cephalosporins, especially cefotaxime, must be used with caution in empirical treatment for Salmonella infections.
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Affiliation(s)
- Chenyang Cao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (C.C.); (Q.N.); (H.S.); (B.L.)
| | - Qinya Niu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (C.C.); (Q.N.); (H.S.); (B.L.)
| | - Jia Chen
- College of Chemical Technology, Shijiazhuang University, Shijiazhuang 050035, China;
| | - Xuebin Xu
- Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China;
| | - Huanjing Sheng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (C.C.); (Q.N.); (H.S.); (B.L.)
| | - Shenghui Cui
- National Institutes for Food and Drug Control, Beijing 100050, China;
| | - Bin Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (C.C.); (Q.N.); (H.S.); (B.L.)
| | - Baowei Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (C.C.); (Q.N.); (H.S.); (B.L.)
- Correspondence: ; Tel./Fax: +86-29-87092486
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20
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Chen Z, Bai J, Zhang X, Wang S, Chen K, Lin Q, Xu C, Qu X, Zhang H, Liao M, Zhang J. Highly prevalent multidrug resistance and QRDR mutations in Salmonella isolated from chicken, pork and duck meat in Southern China, 2018-2019. Int J Food Microbiol 2021; 340:109055. [PMID: 33485100 DOI: 10.1016/j.ijfoodmicro.2021.109055] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 12/20/2020] [Accepted: 01/07/2021] [Indexed: 10/22/2022]
Abstract
This study was undertaken to investigate the prevalence, serotype distribution and antimicrobial resistance in Salmonella isolated from retail meat in Southern China, and to characterize the major mechanisms that mediate the ciprofloxacin resistance of isolates. High levels of Salmonella contamination were detected in pork (67.0%), duck (50.5%) and chicken (46.2%). Thirty different serotypes were identified among 500 detected Salmonella isolates, as well as significant differences in serotypes between different retail meat samples. Notably, 405 (80.1%) isolates exhibited multidrug resistance (MDR). Meanwhile, we also found that 74 (14.8%) Salmonella isolates were resistant to ciprofloxacin and the major mechanisms underlying this resistance were investigated. The commonest mutations in gyrA S83F (40.5%) and D87N (35.1%), and in parC was T57S (71.6%) and S80I (35.1%). Multilocus sequence typing (MLST) and pulsed-field gel electrophoresis (PFGE) analysis revealed that the S. Kentucky isolates that were resistant to ciprofloxacin mostly belonged to ST198 (21/23, 91.3%) and PFGE revealed the presence of various genotypes. This study identified a diversity of Salmonella serotypes and a high prevalence of multidrug resistance (MDR) among Salmonella isolated from retail meat in Southern China, which indicates that foodborne Salmonella potentially constitutes a potential food safety risk.
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Affiliation(s)
- Zhengquan Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Jie Bai
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Xibin Zhang
- Lab of Beef Processing and Quality Control, College of Food Science and Engineering, Shandong Agricultural University, Taian, Shandong 271018, PR China; New Hope Liuhe Co., Ltd., Beijing 100102, PR China
| | - Shaojun Wang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Kaifeng Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Qijie Lin
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Chenggang Xu
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Xiaoyun Qu
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Hongxia Zhang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China
| | - Ming Liao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China.
| | - Jianmin Zhang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, PR China.
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21
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Wen J, Gou H, Liu J, Zhou H, Lin Q, Qu X, Chen K, Wang S, Shen H, Liao M, Zhang J. A one-step closed-tube enzyme-activated blocked probe assay based on SNP for rapid detection of Salmonella Pullorum. Poult Sci 2020; 100:1059-1067. [PMID: 33518064 PMCID: PMC7858149 DOI: 10.1016/j.psj.2020.11.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/02/2020] [Accepted: 11/09/2020] [Indexed: 12/02/2022] Open
Abstract
Salmonella enterica serovar Gallinarum biovars Pullorum (S. Pullorum) is an infectious bacterial pathogen in the poultry industry that causes systemic pullorum disease. This disease causes great losses in terms of the clinical production and quality of chicken products in breeding farms. However, an acknowledged usable rapid detection method for its specific identification has not been reported, and it is generally difficult to distinguish from fowl typhoid caused by Salmonella enterica serovar Gallinarum biovars Gallinarum. The development of a specific and rapid detection method for this pathogen is therefore needed. In the present study, we targeted the single-nucleotide mutation position 237 of the S. Pullorum rfbS gene to develop an enzyme-activated blocked probe for its clinical rapid detection. The method displayed robust specificity and reproducibility, and it achieved minimal detection limits of 21 copies/μL of copy number and 4.53 pg/μL of genomic DNA. Compared with traditional identification and PCR methods, this method performed better for the detection of 100 clinical actual samples and without false negative results. The entire process can be accomplished in a 1-step closed-tube operation, overcomes the difficulties currently associated with S. Pullorum detection, and provides a specific and rapid method with broad application potential for SNP detection.
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Affiliation(s)
- Junping Wen
- National and Regional Joint Engineering Laboratory For Medicament of Zoonoses Prevention and Control, Guangzhou 510642, China; Key Laboratory of Zoonoses, Ministry of Agriculture, Guangzhou 510642, China; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Hongchao Gou
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Jing Liu
- National and Regional Joint Engineering Laboratory For Medicament of Zoonoses Prevention and Control, Guangzhou 510642, China; Key Laboratory of Zoonoses, Ministry of Agriculture, Guangzhou 510642, China; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Hualiang Zhou
- Animal and Plant Inspection and Quarantine Technology Center, Shenzhen 518054, China
| | - Qijie Lin
- National and Regional Joint Engineering Laboratory For Medicament of Zoonoses Prevention and Control, Guangzhou 510642, China; Key Laboratory of Zoonoses, Ministry of Agriculture, Guangzhou 510642, China; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoyun Qu
- National and Regional Joint Engineering Laboratory For Medicament of Zoonoses Prevention and Control, Guangzhou 510642, China; Key Laboratory of Zoonoses, Ministry of Agriculture, Guangzhou 510642, China; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Kaifeng Chen
- National and Regional Joint Engineering Laboratory For Medicament of Zoonoses Prevention and Control, Guangzhou 510642, China; Key Laboratory of Zoonoses, Ministry of Agriculture, Guangzhou 510642, China; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Shaojun Wang
- National and Regional Joint Engineering Laboratory For Medicament of Zoonoses Prevention and Control, Guangzhou 510642, China; Key Laboratory of Zoonoses, Ministry of Agriculture, Guangzhou 510642, China; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Haiyan Shen
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Ming Liao
- National and Regional Joint Engineering Laboratory For Medicament of Zoonoses Prevention and Control, Guangzhou 510642, China; Key Laboratory of Zoonoses, Ministry of Agriculture, Guangzhou 510642, China; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Jianmin Zhang
- National and Regional Joint Engineering Laboratory For Medicament of Zoonoses Prevention and Control, Guangzhou 510642, China; Key Laboratory of Zoonoses, Ministry of Agriculture, Guangzhou 510642, China; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Guangzhou 510642, China; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China; College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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22
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Shen H, Wen J, Liao X, Lin Q, Zhang J, Chen K, Wang S, Zhang J. A Sensitive, Highly Specific Novel Isothermal Amplification Method Based on Single-Nucleotide Polymorphism for the Rapid Detection of Salmonella Pullorum. Front Microbiol 2020; 11:560791. [PMID: 33117307 PMCID: PMC7575712 DOI: 10.3389/fmicb.2020.560791] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 09/03/2020] [Indexed: 11/30/2022] Open
Abstract
S. Pullorum (Salmonella enterica serovar Gallinarum biovars Pullorum) is an infectious pathogen that causes the acute systemic disease called Pullorum disease in poultry. This disease causes huge losses to the poultry industry and seriously affects the yield and quality of the chicken product. It is not easily distinguishable with fowl typhoid caused by S. Gallinarum (Salmonella enterica serovar Gallinarum biovars Gallinarum), hence the development of a specific and rapid detection method for this pathogen is highly desired. In this study, we propose a novel single-nucleotide polymorphism (SNP) detection strategy termed loop primer probe-introduced loop-mediated isothermal amplification (LP-LAMP) for S. Pullorum detection. Based on the original primer sets, we targeted the nucleotide position 237 of the rfbS gene sequence to design a new modified loop-primer probe with a ribonucleotide insertion, where activity of the enzyme ribonuclease H2 (RNase H2) is only activated when the probe is perfectly complementary, leading to the hydrolytic release of a quencher moiety and thus an amplified signal. The method exhibits robust specificity and a low detection limit as the copy number and genomic DNA is 21 copies/μL and 4.92 pg/μL, respectively. This method showed great performance in real sample testing of 130 samples of embryos, livers, and anal swabs from chickens in poultry farms. The experimental results are mainly consistent with traditional identification methods and a PCR method reported in the past. However, the other two methods still contain some false negative results, while our method is without miss detection. The entire closed-tube reaction process can be accomplished within 40 min at a constant temperature (61°C) without the need for expensive instruments or a complicated operation. The LP-LAMP strategy established in this study not only overcomes the existing difficulties of S. Pullorum rapid detection, it also provides a novel, sensitive, and highly specific detection platform for SNPs that is suitable for clinical use.
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Affiliation(s)
- Haiyan Shen
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China; Laboratory of Livestock Disease Prevention of Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangdong, China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong, China
| | - Junping Wen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control; Key Laboratory of Zoonoses, Ministry of Agriculture; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture; Guangdong Laboratory for Lingnan Modern Agriculture; College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Xinmeng Liao
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, China
| | - Qijie Lin
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control; Key Laboratory of Zoonoses, Ministry of Agriculture; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture; Guangdong Laboratory for Lingnan Modern Agriculture; College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jianfeng Zhang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China; Laboratory of Livestock Disease Prevention of Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Guangdong, China; Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong, China
| | - Kaifeng Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control; Key Laboratory of Zoonoses, Ministry of Agriculture; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture; Guangdong Laboratory for Lingnan Modern Agriculture; College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Shaojun Wang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control; Key Laboratory of Zoonoses, Ministry of Agriculture; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture; Guangdong Laboratory for Lingnan Modern Agriculture; College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jianmin Zhang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control; Key Laboratory of Zoonoses, Ministry of Agriculture; Key Laboratory of Zoonoses Prevention and Control of Guangdong Province; Key Laboratory of Animal Vaccine Development, Ministry of Agriculture; Guangdong Laboratory for Lingnan Modern Agriculture; College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
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23
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Ma Y, Xu X, Gao Y, Zhan Z, Xu C, Qu X, Chen Z, Bai J, Liao M, Zhang J. Antimicrobial resistance and molecular characterization of Salmonella enterica serovar Corvallis isolated from human patients and animal source foods in China. Int J Food Microbiol 2020; 335:108859. [PMID: 32947147 DOI: 10.1016/j.ijfoodmicro.2020.108859] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Revised: 07/24/2020] [Accepted: 08/30/2020] [Indexed: 12/29/2022]
Abstract
In this study, 205 Salmonella enterica serovar Corvallis strains were obtained from humans and foods from Guangdong, Guangxi, and Shanghai in China from 2009 to 2017 to assess drug resistance and molecular epidemiology. These isolates displayed high rates of resistance to sulfisoxazole (94.15%) and tetracycline (77.56%). Surprisingly, the rate of resistance to ciprofloxacin reached 21.46%. Moreover, 63.9% of the strains displayed multidrug resistance. Detection of quinolone genes showed that 97.56% of the strains had single mutations (T57S) in parC. The plasmid-mediated quinolone resistance (PMQR) genes qnrS, aac(6')-Ib-cr, and qnrB, were also detected. The extended spectrum β-lactamase (ESBLS) gene that was most common among the isolates was blaTEM-1 (18.05%). These S. Corvallis isolates are the first to date, that have been reported to possess blaCTX-M-55 or blaNDM-5. Additionally, 95.61% of isolates were biofilm producers. The streptomycin resistance rate was higher in strong biofilm producers (87.50%) than in moderate (37.93%) and weak (26.49%) biofilm producers. Pulsed-field gel electrophoresis (PFGE) showed that some strains from different sources had the same genotype. These isolates may be transmitted to humans through food and therefore the monitoring of these isolates should be strengthened in China.
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Affiliation(s)
- Yeben Ma
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xuebin Xu
- Department of Microbiology, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Yuan Gao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zeqiang Zhan
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Chenggang Xu
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xiaoyun Qu
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zhengquan Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Jie Bai
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Ming Liao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Jianmin Zhang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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Wen J, Gou H, Zhan Z, Gao Y, Chen Z, Bai J, Wang S, Chen K, Lin Q, Liao M, Zhang J. A rapid novel visualized loop-mediated isothermal amplification method for Salmonella detection targeting at fimW gene. Poult Sci 2020; 99:3637-3642. [PMID: 32616260 PMCID: PMC7597837 DOI: 10.1016/j.psj.2020.03.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 11/30/2022] Open
Abstract
Salmonella infection causes huge losses in the poultry industry worldwide. With the aim to prevent infectious diseases caused by Salmonella and to achieve rapid visualized Salmonella detection in poultry production, we used cresol red as an indicator to develop a novel visualized loop-mediated isothermal amplification method that targets the Salmonella fimW gene firstly in related field. The detection limit was 7.3 × 101 CFU/mL, and the method was highly specific and showed a high clinical detection rate. The entire reaction can be completed in about 40 min and only requires a water bath at 62°C, which makes the method extremely suitable for application to poultry production.
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Affiliation(s)
- Junping Wen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Hongchao Gou
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Zeqiang Zhan
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Yuan Gao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zhengquan Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Jie Bai
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Shaojun Wang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Kaifeng Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Qijie Lin
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Ming Liao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Jianmin Zhang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Key Laboratory of Zoonoses, Key Laboratory of Animal Vaccine Development, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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25
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Chen Z, Bai J, Wang S, Zhang X, Zhan Z, Shen H, Zhang H, Wen J, Gao Y, Liao M, Zhang J. Prevalence, Antimicrobial Resistance, Virulence Genes and Genetic Diversity of Salmonella Isolated from Retail Duck Meat in Southern China. Microorganisms 2020; 8:E444. [PMID: 32245148 PMCID: PMC7143943 DOI: 10.3390/microorganisms8030444] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 03/14/2020] [Accepted: 03/18/2020] [Indexed: 11/30/2022] Open
Abstract
Salmonella is an important cause of foodborne diseases. This study was undertaken to investigate the prevalence, serotype distribution, antimicrobial resistance, virulence genes, and genetic diversity of Salmonella isolates recovered from fresh duck meat obtained from retail markets in Southern China. In total, 365 samples of fresh duck meat were collected from retail markets in six different cities of Guangdong Province between May 2017 and April 2019. High levels of Salmonella contamination were detected in duck meat (151/365, 41.4%). Twenty-six different Salmonella serotypes were identified: S. Corvallis (n = 25, 16.6%), S. Kentucky (n = 22, 14.6%) and S. Agona (n = 20, 13.3%) were the most prevalent serotypes. All isolates were resistant to at least one antibiotic and 133 (88.1%) isolates exhibited multidrug resistance (MDR). Most (86.1%) Salmonella isolates carried seven classes of virulence-associated genes. This study showed the diversity of Salmonella serotypes and genotypes and the high prevalence of MDR isolates carrying multiple virulence-associated genes among isolates from duck meat obtained from retail markets in Southern China. Isolates from different districts had similar pulsed-field gel electrophoresis (PFGE) patterns indicating that circulating foodborne Salmonella constitutes a potential public health issue across different districts.
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Affiliation(s)
- Zhengquan Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Jie Bai
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Shaojun Wang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Xibin Zhang
- Lab of Beef Processing and Quality Control, College of Food Science and Engineering, Shandong Agricultural University, Taian 271018, China
- New Hope Liuhe Co., Ltd., Beijing 100102, China
| | - Zeqiang Zhan
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Haiyan Shen
- Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Hongxia Zhang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Junping Wen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Yuan Gao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Ming Liao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
- Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture, Key Laboratory of Livestock Disease Prevention of Guangdong Province, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China
| | - Jianmin Zhang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Guangdong Laboratory for Lingnan Modern Agriculture, Key Laboratory of Zoonoses, Ministry of Agriculture, Key Laboratory of Zoonoses Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
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Xiong Z, Wang S, Huang Y, Gao Y, Shen H, Chen Z, Bai J, Zhan Z, Wen J, Liao M, Zhang J. Ciprofloxacin-Resistant Salmonella enterica Serovar Kentucky ST198 in Broiler Chicken Supply Chain and Patients, China, 2010-2016. Microorganisms 2020; 8:microorganisms8010140. [PMID: 31963932 PMCID: PMC7022574 DOI: 10.3390/microorganisms8010140] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/13/2020] [Accepted: 01/17/2020] [Indexed: 12/17/2022] Open
Abstract
Salmonella enterica serovar Kentucky (S. Kentucky) sequence type 198 has emerged as a global zoonotic pathogen. We explored Salmonella enterica serovar Kentucky ST198 samples from the broiler chicken supply chain and patients between 2010 and 2016. Here, we collected 180 S. Kentucky isolates from clinical cases and the poultry supply chain. We performed XbaI pulsed-field gel electrophoresis and multilocus sequence typing. We assessed mutations in the quinolone resistance-determining regions and screened for the presence of the Salmonella genomic island 1 (SGI1). We determined that 63 (35.0%) of the 180 isolates were S. Kentucky ST198. Chinese strains of S. Kentucky ST198 have a high transmission of ciprofloxacin resistance (38/63, 60.3%) and a high risk of multidrug resistance. The quinolone resistance of the S. Kentucky ST198 strain found in China may be due to mutations in its quinolone resistance-determining region. Our study firstly revealed that ciprofloxacin-resistant S. Kentucky ST198 strains can undergo cross-host transmission, thereby causing a serious foodborne public health problem in China.
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Affiliation(s)
- Zhiying Xiong
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.X.); (S.W.); (Y.H.); (Y.G.); (Z.C.); (J.B.); (Z.Z.); (J.W.)
| | - Shaojun Wang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.X.); (S.W.); (Y.H.); (Y.G.); (Z.C.); (J.B.); (Z.Z.); (J.W.)
| | - Yumei Huang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.X.); (S.W.); (Y.H.); (Y.G.); (Z.C.); (J.B.); (Z.Z.); (J.W.)
| | - Yuan Gao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.X.); (S.W.); (Y.H.); (Y.G.); (Z.C.); (J.B.); (Z.Z.); (J.W.)
| | - Haiyan Shen
- Institude of Animal Health, Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China;
| | - Zhengquan Chen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.X.); (S.W.); (Y.H.); (Y.G.); (Z.C.); (J.B.); (Z.Z.); (J.W.)
| | - Jie Bai
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.X.); (S.W.); (Y.H.); (Y.G.); (Z.C.); (J.B.); (Z.Z.); (J.W.)
| | - Zeqiang Zhan
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.X.); (S.W.); (Y.H.); (Y.G.); (Z.C.); (J.B.); (Z.Z.); (J.W.)
| | - Junping Wen
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.X.); (S.W.); (Y.H.); (Y.G.); (Z.C.); (J.B.); (Z.Z.); (J.W.)
| | - Ming Liao
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.X.); (S.W.); (Y.H.); (Y.G.); (Z.C.); (J.B.); (Z.Z.); (J.W.)
- Correspondence: (M.L.); (J.Z.); Tel.: +86-02-85280240 (M.L.); +86-20-85280240 (J.Z.); Fax: +86-20-85280240 (M.L.); +86-20-85285282 (J.Z.)
| | - Jianmin Zhang
- National and Regional Joint Engineering Laboratory for Medicament of Zoonoses Prevention and Control, Lingnan Guangdong Laboratory of Modern Agriculture, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; (Z.X.); (S.W.); (Y.H.); (Y.G.); (Z.C.); (J.B.); (Z.Z.); (J.W.)
- Correspondence: (M.L.); (J.Z.); Tel.: +86-02-85280240 (M.L.); +86-20-85280240 (J.Z.); Fax: +86-20-85280240 (M.L.); +86-20-85285282 (J.Z.)
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Yang J, Zhang Z, Zhou X, Cui Y, Shi C, Shi X. Prevalence and Characterization of Antimicrobial Resistance in Salmonella enterica Isolates from Retail Foods in Shanghai, China. Foodborne Pathog Dis 2020; 17:35-43. [DOI: 10.1089/fpd.2019.2671] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Jingxian Yang
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture & Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Zengfeng Zhang
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture & Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Xiujuan Zhou
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture & Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Yan Cui
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture & Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Chunlei Shi
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture & Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
| | - Xianming Shi
- MOST-USDA Joint Research Center for Food Safety, School of Agriculture & Biology, and State Key Lab of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai, China
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Feng Y, Chang YJ, Fang SH, Su LH, Li HC, Yang HP, Yu MJ, Chiu CH. Emergence and Evolution of High-Level Cephalosporin-Resistant Salmonella Goldcoast in Northern Taiwan. Open Forum Infect Dis 2019; 6:ofz447. [PMID: 31858016 PMCID: PMC6916519 DOI: 10.1093/ofid/ofz447] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 12/16/2019] [Indexed: 01/28/2023] Open
Abstract
Background Nontyphoidal Salmonella (NTS) is an important foodborne pathogen worldwide. We investigated a 2018 outbreak of highly antimicrobial-resistant Salmonella enterica serotype Goldcoast in northern Taiwan. Methods We collected 30 clinical isolates and 2 meat isolates from this outbreak in New Taipei and Taoyuan, Taiwan in 2018. The clinical manifestations and the treatment of the patients were reviewed. To trace the source, we examined NTS isolated from food samples collected from the markets in northern Taiwan. All of the isolates along with an additional human isolate from China were sequenced and compared with the sequences of Salmonella Goldcoast reported by other countries. Results The outbreak involved 14 pediatric patients (<5 years old) and 16 adults (36 to 83 years old). Nine patients with invasive or severe disease required carbapenem treatment. The MIC90 of ceftriaxone and ciprofloxacin for the outbreak isolates was >256 μg/mL and 1 μg/mL, respectively, and a conjugative 278-kilobase plasmid harboring blaCTX-M-55 and qnrS1 contributed towards the resistance. Whole-genome sequencing revealed a clonal relationship among the outbreak isolates and the 2 collected from the retail meats. The outbreak clone was phylogenetically close to that of Salmonella Goldcoast reported in the United Kingdom, Poland, and China, whereas similar resistance plasmids were found in China and Cambodia. Conclusions The clinical spectrum of the high-level cephalosporin-resistant Salmonella Goldcoast is similar to that of other NTS serotypes, but severe cases required carbapenem treatment. The study confirmed the emergence of a highly antimicrobial-resistant clone of Salmonella Goldcoast, highlighting the importance of surveillance for food safety.
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Affiliation(s)
- Ye Feng
- Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Institute for Translational Medicine, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory of Microbial Technology and Bioinformatics of Zhejiang Province, Hangzhou, China
| | - Yi-Jung Chang
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Szu-Hsuan Fang
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Lin-Hui Su
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Hsin-Chieh Li
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Hsin-Ping Yang
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Min-Jia Yu
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Cheng-Hsun Chiu
- Molecular Infectious Disease Research Center, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
- Division of Pediatric Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan, Taiwan
- Correspondence: C.-H. Chiu, MD, PhD, Department of Pediatrics, Chang Gung Memorial Hospital, No. 5, Fu-Hsin Street, Kweishan 333, Taoyuan, Taiwan ()
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Koutsoumanis K, Allende A, Alvarez-Ordóñez A, Bolton D, Bover-Cid S, Chemaly M, De Cesare A, Herman L, Hilbert F, Lindqvist R, Nauta M, Peixe L, Ru G, Simmons M, Skandamis P, Suffredini E, Dewulf J, Hald T, Michel V, Niskanen T, Ricci A, Snary E, Boelaert F, Messens W, Davies R. Salmonella control in poultry flocks and its public health impact. EFSA J 2019; 17:e05596. [PMID: 32626222 PMCID: PMC7009056 DOI: 10.2903/j.efsa.2019.5596] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
An increase in confirmed human salmonellosis cases in the EU after 2014 triggered investigation of contributory factors and control options in poultry production. Reconsideration of the five current target serovars for breeding hens showed that there is justification for retaining Salmonella Enteritidis, Salmonella Typhimurium (including monophasic variants) and Salmonella Infantis, while Salmonella Virchow and Salmonella Hadar could be replaced by Salmonella Kentucky and either Salmonella Heidelberg, Salmonella Thompson or a variable serovar in national prevalence targets. However, a target that incorporates all serovars is expected to be more effective as the most relevant serovars in breeding flocks vary between Member State (MS) and over time. Achievement of a 1% target for the current target serovars in laying hen flocks is estimated to be reduced by 254,400 CrI95[98,540; 602,700] compared to the situation in 2016. This translates to a reduction of 53.4% CrI95[39.1; 65.7] considering the layer-associated human salmonellosis true cases and 6.2% considering the overall human salmonellosis true cases in the 23 MSs included in attribution modelling. A review of risk factors for Salmonella in laying hens revealed that overall evidence points to a lower occurrence in non-cage compared to cage systems. A conclusion on the effect of outdoor access or impact of the shift from conventional to enriched cages could not be reached. A similar review for broiler chickens concluded that the evidence that outdoor access affects the occurrence of Salmonella is inconclusive. There is conclusive evidence that an increased stocking density, larger farms and stress result in increased occurrence, persistence and spread of Salmonella in laying hen flocks. Based on scientific evidence, an impact of Salmonella control programmes, apart from general hygiene procedures, on the prevalence of Campylobacter in broiler flocks at the holding and on broiler meat at the end of the slaughter process is not expected.
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