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Dai S, Zhang Y, Shen L, Yao H, Wang Z, Zhou Y, Yang J, Wei Z, Zhu M, Wu H, Chen J, Yu Q. Soil-Transmitted Helminth Infections in Shanghai, China: Surveillance from 2014 to 2023. Am J Trop Med Hyg 2024; 110:1152-1157. [PMID: 38697072 PMCID: PMC11154046 DOI: 10.4269/ajtmh.23-0910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Accepted: 02/06/2024] [Indexed: 05/04/2024] Open
Abstract
Soil-transmitted helminthiasis remains a notable health problem in developing countries. In 1990 in Shanghai, a city in eastern China, 47% of the population was affected. Due to a series of comprehensive approaches, the prevalence decreased to 0.5% in 2009. We collected 10-year surveillance data to assess the epidemic situation of soil-transmitted helminth (STH) infections in Shanghai. Stool samples and questionnaires from participants were collected. The Kato-Katz technique was used to detect infections with Ascaris lumbricoides, hookworm (Ancylostoma duodenale and Necator americanus), and Trichuris trichiura. From 2014 to 2023, a total of 77,685 participants were screened for parasitic infections, and the overall prevalence of STH infections decreased from 0.1% to 0% in Shanghai. Of 77,685 participants, 25 (0.03%) were positive for intestinal helminths, with the most common parasite being A. lumbricoides (72.0%). Generally, elderly participants from rural areas with lower education levels were more likely to be infected with STHs. A total of 2,914 questionnaires were collected, and most respondents (72.6%) had good knowledge about the transmission routes of STHs. However, 12.3% of participants did not know the damage to health caused by STHs, and 19.3% had no idea of how to prevent infection. These data demonstrate the current state of STH infections in Shanghai. The results suggest that various comprehensive measures should be encouraged, continuously implemented, and strengthened accordingly so that STH elimination can be integrated into the Healthy China initiative by 2030.
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Affiliation(s)
- Simin Dai
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Yaoguang Zhang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Lei Shen
- Jing’an District Center for Disease Control and Prevention, Shanghai, China
| | - Huijie Yao
- Jing’an District Center for Disease Control and Prevention, Shanghai, China
| | - Zhenyu Wang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Yibin Zhou
- Minhang District Center for Disease Control and Prevention, Shanghai, China
| | - Jiawei Yang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Zixin Wei
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Min Zhu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Huanyu Wu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Jian Chen
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
| | - Qing Yu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China
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Zeng Y, Shen M, Liu S, Zhou X. Characterization and resistance mechanism of phage-resistant strains of Salmonella enteritidis. Poult Sci 2024; 103:103756. [PMID: 38652948 PMCID: PMC11063523 DOI: 10.1016/j.psj.2024.103756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/25/2024] [Accepted: 04/06/2024] [Indexed: 04/25/2024] Open
Abstract
In the face of the increasingly severe problem of antibiotic resistance, phage therapy is regarded as a highly potential alternative. Compared with traditional antimicrobial agents, a key research area of phage therapy is the study of phage-resistant mutant bacteria. To effectively monitor and prevent this resistance, it is crucial to conduct in-depth exploration of the mechanism behind phage resistance. In this study, a strain of Salmonella enteritidis (sm140) and the corresponding phage (Psm140) were isolated from chicken liver and sewage, respectively. Using the double-layer plate method, successfully screened out phage-resistant mutant strains. Whole-genome resequencing of 3 resistant strains found that the wbaP gene of all 3 strains had mutations at a specific position (1,118), with the base changing from G to A. This mutation causes the gene-encoded glycine to be replaced by aspartic acid. Subsequent studies found that the frequency of this gene mutation is extremely high, reaching 84%, and all mutations occur at the same position. To further explore the relationship between the wbaP gene and phage resistance, knockout strains and complement strains of the wbaP gene were constructed. The experimental results confirmed the association between the wbaP gene and phage resistance. At the same time, biological characteristics and virulence were evaluated for wild strains, resistant strains, knockout strains, and complement strains. It was found that mutations or deletions of the wbaP gene lead to a decrease in bacterial environmental adaptability and virulence. Through systematic research on the mechanism and biological characteristics of phage resistance, this study provides important references and guidance for the development of new phage therapies, promoting progress in the field of antimicrobial treatment. At the same time, the emergence of phage resistance due to wbaP gene mutations is reported for the first time in salmonella, providing a new perspective and ideas for further studying phage resistance mechanisms.
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Affiliation(s)
- Yukun Zeng
- College of Veterinary Medicine, Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China
| | - Mangmang Shen
- College of Veterinary Medicine, Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China
| | - Shenglong Liu
- College of Veterinary Medicine, Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China
| | - Xin Zhou
- College of Veterinary Medicine, Institute of Comparative Medicine, Yangzhou University, Yangzhou 225009, China; Jiangsu Co-Innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety, the Ministry of Education of China, Yangzhou University, Yangzhou 225009, China.
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Córdova-Espinoza MG, González-Vázquez R, Barron-Fattel RR, Gónzalez-Vázquez R, Vargas-Hernández MA, Albores-Méndez EM, Esquivel-Campos AL, Mendoza-Pérez F, Mayorga-Reyes L, Gutiérrez-Nava MA, Medina-Quero K, Escamilla-Gutiérrez A. Aptamers: A Cutting-Edge Approach for Gram-Negative Bacterial Pathogen Identification. Int J Mol Sci 2024; 25:1257. [PMID: 38279257 PMCID: PMC10817072 DOI: 10.3390/ijms25021257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/04/2024] [Accepted: 01/15/2024] [Indexed: 01/28/2024] Open
Abstract
Early and accurate diagnoses of pathogenic microorganisms is essential to correctly identify diseases, treating infections, and tracking disease outbreaks associated with microbial infections, to develop precautionary measures that allow a fast and effective response in epidemics and pandemics, thus improving public health. Aptamers are a class of synthetic nucleic acid molecules with the potential to be used for medical purposes, since they can be directed towards any target molecule. Currently, the use of aptamers has increased because they are a useful tool in the detection of specific targets. We present a brief review of the use of aptamers to detect and identify bacteria or even some toxins with clinical importance. This work describes the advances in the technology of aptamers, with the purpose of providing knowledge to develop new aptamers for diagnoses and treatment of different diseases caused by infectious microorganisms.
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Affiliation(s)
- María Guadalupe Córdova-Espinoza
- Immunology Laboratory, Escuela Militar de Graduados de Sanidad, SEDENA, Mexico City 11200, Mexico;
- National School of Biological Sciences, National Polytechnic Institute, Laboratory of Medical Bacteriology, Mexico City 11350, Mexico; (R.G.-V.); (R.R.B.-F.)
- Mexican Social Security Institute, Unidad Medica de Alta Especialidad, Hospital de Especialidades, “Dr. Antonio Fraga Mouret”, National Medical Center La Raza, Mexico City 02990, Mexico
| | - Rosa González-Vázquez
- National School of Biological Sciences, National Polytechnic Institute, Laboratory of Medical Bacteriology, Mexico City 11350, Mexico; (R.G.-V.); (R.R.B.-F.)
- Mexican Social Security Institute, Unidad Medica de Alta Especialidad, Hospital de Especialidades, “Dr. Antonio Fraga Mouret”, National Medical Center La Raza, Mexico City 02990, Mexico
| | - Rolando Rafik Barron-Fattel
- National School of Biological Sciences, National Polytechnic Institute, Laboratory of Medical Bacteriology, Mexico City 11350, Mexico; (R.G.-V.); (R.R.B.-F.)
| | - Raquel Gónzalez-Vázquez
- Laboratory of Biotechnology, Department of Biological Systems, Metropolitana Campus Xochimilco, CONAHCYT—Universidad Autonoma, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldia Coyoacan, Mexico City 04960, Mexico;
| | - Marco Antonio Vargas-Hernández
- Research Department, Escuela Militar de Graduados de Sanidad, SEDENA, Mexico City 11200, Mexico; (M.A.V.-H.); (E.M.A.-M.)
| | - Exsal Manuel Albores-Méndez
- Research Department, Escuela Militar de Graduados de Sanidad, SEDENA, Mexico City 11200, Mexico; (M.A.V.-H.); (E.M.A.-M.)
| | - Ana Laura Esquivel-Campos
- Laboratory of Biotechnology, Department of Biological Systems, Universidad Autonoma Metropolitana, Campus Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldia Coyoacan, Mexico City 04960, Mexico; (A.L.E.-C.); (F.M.-P.); (L.M.-R.)
| | - Felipe Mendoza-Pérez
- Laboratory of Biotechnology, Department of Biological Systems, Universidad Autonoma Metropolitana, Campus Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldia Coyoacan, Mexico City 04960, Mexico; (A.L.E.-C.); (F.M.-P.); (L.M.-R.)
| | - Lino Mayorga-Reyes
- Laboratory of Biotechnology, Department of Biological Systems, Universidad Autonoma Metropolitana, Campus Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Alcaldia Coyoacan, Mexico City 04960, Mexico; (A.L.E.-C.); (F.M.-P.); (L.M.-R.)
| | - María Angélica Gutiérrez-Nava
- Laboratory of Microbial Ecology, Department of Biological Systems, Universidad Autonoma Metropolitana, Campus Xochimilco, Calzada del Hueso 1100, Col. Villa Quietud, Coyoacan, Mexico City 04960, Mexico;
| | - Karen Medina-Quero
- Immunology Laboratory, Escuela Militar de Graduados de Sanidad, SEDENA, Mexico City 11200, Mexico;
| | - Alejandro Escamilla-Gutiérrez
- National School of Biological Sciences, National Polytechnic Institute, Laboratory of Medical Bacteriology, Mexico City 11350, Mexico; (R.G.-V.); (R.R.B.-F.)
- Mexican Social Security Institute, Unidad Medica de Alta Especialidad, Microbiology Laboratory, Hospital General “Dr. Gaudencio González Garza”, National Medical Center La Raza, Mexico City 02990, Mexico
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Isolation, Molecular Identification, and Antibiotic Resistance Profile of Salmonella Typhimurium Isolated from Calves Fecal Samples of Dairy Farms in Hamedan. JOURNAL OF MEDICAL MICROBIOLOGY AND INFECTIOUS DISEASES 2022. [DOI: 10.52547/jommid.10.1.42] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Das T, Rana EA, Dutta A, Bostami MB, Rahman M, Deb P, Nath C, Barua H, Biswas PK. Antimicrobial resistance profiling and burden of resistance genes in zoonotic Salmonella isolated from broiler chicken. Vet Med Sci 2022; 8:237-244. [PMID: 34599790 PMCID: PMC8788989 DOI: 10.1002/vms3.648] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Salmonella is frequently found in poultry of which only motile serovars have zoonotic significance due to their potential to induce human gastrointestinal infections. Antimicrobial resistance, being a public health concern, the emergence of multidrug-resistant (MDR) Salmonella serotypes affecting food chain has greater impact worldwide. AIM Information on circulation of zoonotic Salmonella strains in commercial poultry farm level is limited in many parts of the world. This cross-sectional study was aimed to investigate the zoonotic Salmonella strains circulating in the broiler farm environment with their detailed antimicrobial resistance profiling. METHODS Pooled faecal samples were collected randomly from commercial broiler farms of Chattogram district, Bangladesh. Standard bacteriological procedure was followed to isolate Salmonella, and identification was confirmed by genus specific polymerase chain reaction (PCR). After phenotypic characterisation of resistance profile against eight antimicrobials by disc diffusion technique, all strains were screened by PCR for some selected resistance genes. RESULTS: Out of the 350 samples, Salmonella was isolated and identified from 86 samples. In antimicrobial sensitivity testing, more than 98.8% isolates showed resistance to ampicillin and 94.2% to tetracycline followed by enrofloxacin (56%) and ciprofloxacin (50%). Notably, 94% isolates were found to be MDR. The results of PCR assays revealed that 81.4% of the isolates were carrying the tetA gene, 19.8% the tetB and 10.47% the tetC gene. The prevalence of the isolates bearing the blaTEM , blaCTX-M and Sul-I gene were 95.4%, 7.0 % and 37.2 %, respectively. CONCLUSION There is a great risk to secure healthy poultry products due to the circulation of these MDR zoonotic Salmonella.
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Affiliation(s)
- Tridip Das
- Department of Microbiology and Veterinary Public Health, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram, Bangladesh
- Poultry Research and Training Centre, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram, Bangladesh
| | - Eaftekhar Ahmed Rana
- Department of Microbiology and Veterinary Public Health, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram, Bangladesh
| | - Avijit Dutta
- Department of Microbiology and Veterinary Public Health, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram, Bangladesh
| | - Md Bayazid Bostami
- Teaching and Training Pet Hospital and Research Centre, Chattogram Veterinary and Animal Sciences University, Bangladesh
| | - Mizanur Rahman
- Teaching and Training Pet Hospital and Research Centre, Chattogram Veterinary and Animal Sciences University, Bangladesh
| | - Probir Deb
- Department of Microbiology and Veterinary Public Health, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram, Bangladesh
| | - Chandan Nath
- Department of Microbiology and Veterinary Public Health, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram, Bangladesh
| | - Himel Barua
- Department of Microbiology and Veterinary Public Health, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram, Bangladesh
| | - Paritosh Kumar Biswas
- Department of Microbiology and Veterinary Public Health, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram, Bangladesh
- Poultry Research and Training Centre, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram, Bangladesh
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Zhang M, Wang C, O’Connor A. A Bayesian approach to modeling antimicrobial multidrug resistance. PLoS One 2021; 16:e0261528. [PMID: 34965273 PMCID: PMC8716034 DOI: 10.1371/journal.pone.0261528] [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: 04/22/2021] [Accepted: 12/03/2021] [Indexed: 11/23/2022] Open
Abstract
Multidrug resistance (MDR) has been a significant threat to public health and effective treatment of bacterial infections. Current identification of MDR is primarily based upon the large proportions of isolates resistant to multiple antibiotics simultaneously, and therefore is a belated evaluation. For bacteria with MDR, we expect to see strong correlations in both the quantitative minimum inhibitory concentration (MIC) and the binary susceptibility as classified by the pre-determined breakpoints. Being able to detect correlations from these two perspectives allows us to find multidrug resistant bacteria proactively. In this paper, we provide a Bayesian framework that estimates the resistance level jointly for antibiotics belonging to different classes with a Gaussian mixture model, where the correlation in the latent MIC can be inferred from the Gaussian parameters and the correlation in binary susceptibility can be inferred from the mixing weights. By augmenting the laboratory measurement with the latent MIC variable to account for the censored data, and by adopting the latent class variable to represent the MIC components, our model was shown to be accurate and robust compared with the current assessment of correlations. Applying the model to Salmonella heidelberg samples isolated from human participants in National Antimicrobial Resistance Monitoring System (NARMS) provides us with signs of joint resistance to Amoxicillin-clavulanic acid & Cephalothin and joint resistance to Ampicillin & Cephalothin. Large correlations estimated from our model could serve as a timely tool for early detection of MDR, and hence a signal for clinical intervention.
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Affiliation(s)
- Min Zhang
- Department of Statistics, Iowa State University, Ames, Iowa, United States of America
| | - Chong Wang
- Department of Statistics, Iowa State University, Ames, Iowa, United States of America
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, United States of America
- * E-mail:
| | - Annette O’Connor
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, Iowa, United States of America
- Department of Large Animal Clinical Sciences, Michigan State University, East Lansing, Michigan, United States of America
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Plasmid-borne colistin resistance gene mcr-1 in a multidrug resistant Salmonella enterica serovar Typhimurium isolate from an infant with acute diarrhea in China. Int J Infect Dis 2020; 103:13-18. [PMID: 33212253 DOI: 10.1016/j.ijid.2020.11.150] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/21/2020] [Accepted: 11/09/2020] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Antimicrobial resistance of Salmonella enterica is a major global concern. Recent findings suggest that colistin as a last resort treatment for multidrug-resistant gram-negative bacteria is seriously threatened by the report of plasmid-mediated colistin resistance gene mcr-1 in China. METHODS A total of 827 S. Typhimurium isolates were recovered from 4 cities of China, including Henan, Shanghai, Zhejiang, and Hubei provinces. Subsequently, mcr-1 presence was identified by PCR screening. Antimicrobial susceptibility testing was performed by broth microdilution using a 96-well microtiter plate. Plasmid conjugation transfer experiments were conducted using Escherichia coli J53 as the recipient. RESULTS Only one mcr-1 positive strain from the stool sample of an infant with acute diarrhea was isolated. Apart from colistin, the mcr-1-positive isolate showed co-resistance to the third-generation cephalosporins, ampicillin, nalidixic acid, tetracycline, chloramphenicol, sulfisoxazole, gentamicin, and cefotaxime revealing a multidrug-resistant phenotype. This strain harbored mcr-1 on a 227 kb IncHI2 plasmid, termed pJZ26, which could be transferred to E. coli J53. In addition to mcr-1, pJZ26 coharbored other resistance genes, including aph(4)-Ia, aac(3)-IVa, fosA, floR, sul2, and blaCTX-M-14. Compared with p2474-MCR1 and pHYEC7-IncHI2, pJZ26 contains an additional 4.6 kb fragment harboring the resistance gene tet(A) and its regulator tetR located on TnAs1 transposable element, which could mediate resistance to tetracycline. CONCLUSIONS These findings highlight that the fact the mcr-1-harboring plasmid pJZ26 has a high potential to disseminate the mcr-1 gene and further challenge the clinical treatment.
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Dong N, Li Y, Zhao J, Ma H, Wang J, Liang B, Du X, Wu F, Xia S, Yang X, Liu H, Yang C, Qiu S, Song H, Jia L, Li Y, Sun Y. The phenotypic and molecular characteristics of antimicrobial resistance of Salmonella enterica subsp. enterica serovar Typhimurium in Henan Province, China. BMC Infect Dis 2020; 20:511. [PMID: 32669095 PMCID: PMC7362628 DOI: 10.1186/s12879-020-05203-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 06/29/2020] [Indexed: 02/07/2023] Open
Abstract
Background Salmonella enterica subsp. enterica serovar Typhimurium infections continue to be a significant public health threat worldwide. The aim of this study was to investigate antibiotic resistance among 147 S. Typhimurium isolates collected from patients in Henan, China from 2006 to 2015. Methods 147 S. Typhimurium isolates were collected from March 2006 to November 2015 in Henan Province, China. Antimicrobial susceptibility testing was performed, and the resistant genes of ciprofloxacin, cephalosporins (ceftriaxone and cefoxitin) and azithromycin were detected and sequenced. Clonal relationships were assessed by multilocus sequence typing (MLST) and pulsed-field gel electrophoresis (PFGE). Results Of the 147 isolates, 91.1% were multidrug resistant (MDR), with 4.1% being resistant to all antibiotic classes tested. Of concern, 13 MDR isolates were co-resistant to the first-line treatments cephalosporins and ciprofloxacin, while three were also resistant to azithromycin. Seven PFGE patterns were identified among the 13 isolates. All of the isolates could be assigned to one of four main groups, with a similarity value of 89%. MLST assigned the 147 isolates into five STs, including two dominant STs (ST19 and ST34). Of the 43 ciprofloxacin-resistant isolates, 39 carried double gyrA mutations (Ser83Phe, Asp87Asn/Tyr/Gly) and a single parC (Ser80Arg) mutation, including 1 isolate with four mutations (gyrA: Ser83Phe, Asp87Gly; parC: Ser80Arg; parE: Ser458Pro). In addition, 12 isolates not only carried mutations in gyrA and parC but also had at least one plasmid-mediated quinolone resistance (PMQR) gene. Among the 32 cephalosporin-resistant isolates, the most common extended-spectrum β-lactamase (ESBL) gene was blaOXA-1, followed by blaCTX-M, blaTEM-1, and blaCMY-2. Moreover, the mphA gene was identified in 5 of the 15 azithromycin-resistant isolates. Four MDR isolates contained ESBL and PMQR genes, and one of them also carried mphA in addition. Conclusion The high level of antibiotic resistance observed in S. Typhimurium poses a great danger to public health, so continuous surveillance of changes in antibiotic resistance is necessary.
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Affiliation(s)
- Nian Dong
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China.,Xingcheng Special Service Recuperation Center of PLA Strategic Support Force, 210th Xinghai South Road, Xingcheng, 125100, China
| | - Yongrui Li
- Luoyang No.1 Hospital of TCM, 7th Jiudu Road, Luoyang, 471000, China.,The Key laboratory of Pharmacology and Molecular Biology, Medical College, Henan University of Science and Technology, 263th Kaiyuan Street, Luolong District, Luoyang, 471023, China
| | - Jiayong Zhao
- Institute for Infectious Disease Control and Prevention, Henan Center for Disease Control and Prevention, Zhengzhou, China
| | - Hui Ma
- The Health Bureau of Logistical Support Department, Central Military Commission of China, 22 Fuxing Road, Beijing, 100036, Haidian District, China
| | - Jinyan Wang
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China
| | - Beibei Liang
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China
| | - Xinying Du
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China
| | - Fuli Wu
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China
| | - Shengli Xia
- Institute for Infectious Disease Control and Prevention, Henan Center for Disease Control and Prevention, Zhengzhou, China
| | - Xiaoxia Yang
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China
| | - Hongbo Liu
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China
| | - Chaojie Yang
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China
| | - Shaofu Qiu
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China
| | - Hongbin Song
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China
| | - Leili Jia
- Chinese PLA Center for Disease Control and Prevention, 20th Dongda Street, Beijing, 100071, Fengtai District, China.
| | - Yan Li
- The Key laboratory of Pharmacology and Molecular Biology, Medical College, Henan University of Science and Technology, 263th Kaiyuan Street, Luolong District, Luoyang, 471023, China.
| | - Yansong Sun
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, 20 Dongda Street, Beijing, 100071, Fengtai District, China.
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Khademi F, Vaez H, Ghanbari F, Arzanlou M, Mohammadshahi J, Sahebkar A. Prevalence of fluoroquinolone-resistant Salmonella serotypes in Iran: a meta-analysis. Pathog Glob Health 2020; 114:16-29. [PMID: 32013798 DOI: 10.1080/20477724.2020.1719701] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
The present study was conducted to investigate the antimicrobial susceptibility profiles of Salmonella serotypes, especially fluoroquinolone-resistant strains, recovered from clinical samples in Iran. A full electronic search using related keywords was conducted in Persian and English languages in ISI Web of Knowledge, PubMed, Scopus, Google Scholar and the Scientific Information Database (SID) search engines to find papers published between 1983 and 1 July 2019. According to the inclusion and exclusion criteria, 46 eligible articles were selected for the final analysis out of the initial 13,186 studies retrieved. The pooled prevalence of quinolone-resistant Salmonella serotypes in clinical specimens in Iran was 2.9% to ciprofloxacin and 48.1% to nalidixic acid. Additional data on antibiotic resistance was as follows: 54.3% to tetracycline, 50.6% to ceftizoxime, 50.2% to streptomycin, 37.9% to ampicillin, 36.5% to kanamycin, 33.5% to trimethoprim-sulfamethoxazole, 27.2% to chloramphenicol, 19.1% to cephalothin, 8.8% to ceftriaxone, 7.6% to cefotaxime, 7.4% to aztreonam, 7.2% to gentamicin, 7% to cefepime, 6.8% to ceftazidime, 5.8% to cefixime, 2.7% to imipenem and 2.2% to meropenem. Findings of the present study showed a rising trend of resistance to the drugs of choice for the treatment of Salmonella infections, i.e. ampicillin, chloramphenicol and trimethoprim-sulfamethoxazole in Iran. However, ciprofloxacin, third-generation cephalosporins and carbapenems are still effective antibiotics especially against multi-drug resistant strains in Iran.
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Affiliation(s)
- Farzad Khademi
- Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Hamid Vaez
- Department of Microbiology, School of Medicine, Zabol University of Medical Sciences, Zabol, Iran
| | - Fahimeh Ghanbari
- Student Research Committee, School of Medicine, Shahid Saddoughi University of Medical Sciences, Yazd, Iran
| | - Mohsen Arzanlou
- Department of Microbiology, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Jafar Mohammadshahi
- Department of Infectious Disease, Imam Khomeini Hospital, Ardabil University of Medical Sciences, Ardabil, Iran
| | - Amirhossein Sahebkar
- Halal Research Center of IRI, FDA, Tehran, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Alghoribi MF, Doumith M, Alrodayyan M, Al Zayer M, Köster WL, Muhanna A, Aljohani SM, Balkhy HH, Desin TS. S. Enteritidis and S. Typhimurium Harboring SPI-1 and SPI-2 Are the Predominant Serotypes Associated With Human Salmonellosis in Saudi Arabia. Front Cell Infect Microbiol 2019; 9:187. [PMID: 31214517 PMCID: PMC6554431 DOI: 10.3389/fcimb.2019.00187] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 05/15/2019] [Indexed: 12/25/2022] Open
Abstract
Non-typhoidal Salmonella (NTS) strains are Gram negative bacterial pathogens that are associated with foodborne illness worldwide. During the process of infection, Salmonella uses two molecular injectisomes known as Type 3 Secretion Systems (T3SS) to secrete virulence factors that are encoded by Salmonella Pathogenicity Island-1 (SPI-1) and SPI-2 into host cells. These secretion systems play a major role in virulence, as shown in various animal models, but little is known about their role in human infections. In Saudi Arabia, NTS strains frequently cause human infections but data regarding these pathogenic strains is fairly limited. The aim of this study was to characterize Salmonella human clinical isolates in Riyadh, Saudi Arabia, by determining their serotype, testing for the presence of SPI-1 and SPI-2 genes and to determine the antibiotic resistance profiles of these strains. Using the rapid Check and Trace Salmonella™ (CTS) system our results demonstrate that S. Enteritidis and S. Typhimurium were the predominant serovars, followed by S. Livingstone, S. Kentucky and S. Poona among a list of 36 serovars reported for the first time in the country. In addition, SPI-1 genes were detected in 99% of the isolates, while the sifA gene (SPI-2) was not detected in 13.5% of the isolates. These results suggest that both the SPI-1 and SPI-2 virulence determinants are important for human infection. Moreover, we report the presence of a Multi-Drug (MDR) carbapenem resistant S. Kentucky isolate harboring the blaOXA−48 gene not reported previously in Saudi Arabia.
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Affiliation(s)
- Majed F Alghoribi
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,Infectious Diseases Research Department, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Michel Doumith
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,Infectious Diseases Research Department, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Maha Alrodayyan
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,Infectious Diseases Research Department, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Maha Al Zayer
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,Infectious Diseases Research Department, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
| | - Wolfgang L Köster
- Vaccine and Infectious Disease Organization-International Vaccine Center, University of Saskatchewan, Saskatoon, SK, Canada
| | - Abdulhai Muhanna
- John H. Stroger Junior Hospital of Cook County, Chicago, IL, United States
| | - Sameera M Aljohani
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,Infectious Diseases Research Department, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
| | - Hanan H Balkhy
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,Infectious Diseases Research Department, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia.,Ministry of National Guard-Health Affairs, Riyadh, Saudi Arabia
| | - Taseen S Desin
- King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.,Infectious Diseases Research Department, King Abdullah International Medical Research Center, Riyadh, Saudi Arabia
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11
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Wajid M, Saleemi MK, Sarwar Y, Ali A. Detection and characterization of multidrug-resistant Salmonella enterica serovar Infantis as an emerging threat in poultry farms of Faisalabad, Pakistan. J Appl Microbiol 2019; 127:248-261. [PMID: 30990250 DOI: 10.1111/jam.14282] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/26/2019] [Accepted: 04/09/2019] [Indexed: 12/19/2022]
Abstract
AIMS The aim of this study was the molecular identification of Salmonella enterica serovar Infantis (S. Infantis) isolated from poultry samples and their antimicrobial resistance and virulence profiling. METHODS AND RESULTS A total of 149 isolates, belonging to genus Salmonella, originally isolated from 340 suspected poultry post mortem specimens reported by us earlier were preliminary identified as Salmonella by biochemical methods and confirmed by polymerase chain reaction targeting genus-specific gene invA. Targeting serovar-specific gene fragment (fljB) resulted in confirmation of 54 isolates as S. Infantis which were further confirmed by sequencing of 16S RNA and fljB genes. Swimming and swarming motilities were detected in 98·1 and 11·1% isolates respectively. Phenotypic disc diffusion assay against 23 antimicrobial agents showed the highest resistance against pefloxacin (PEF) (94·4%), chloramphenicol (83·3%) and imipenem (77·7%) while 5·3% isolates showed extended-spectrum β-lactamase production. Fifty-nine genes reported for antimicrobial resistance and 12 for conferring virulence were targeted. The most prevalent resistance gene for aminoglycosides was aadA (42·3%), for quinolone resistance determining region parE (62·5%), for penicillin's Int1 (62·9%), for chloramphenicol cat3 (66·1%) and for beta-lactams blaTEM -1 (44·4%). Among efflux pump coding genes, armA showed highest (74·2%) prevalence and for virulence, a high prevalence of SopE (89·2%) showed the zoonotic potential of the isolates. The activity of efflux pumps was detected through Ethidium Bromide-agar method. CONCLUSIONS Poultry could act as reservoirs of multidrug resistance Salmonella. SIGNIFICANCE AND IMPACT OF THE STUDY We firstly report the prevalence and molecular characterization of virulence/drug resistance in S. Infantis from this region and the results may contribute to designing precisely targeted therapy. This study has also highlighted the possible emergence of S. Infantis with zoonotic potential.
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Affiliation(s)
- M Wajid
- National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan.,Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan
| | - M K Saleemi
- Faculty of Veterinary Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Y Sarwar
- National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan.,Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan
| | - A Ali
- National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan.,Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan
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12
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Wajid M, Awan AB, Saleemi MK, Weinreich J, Schierack P, Sarwar Y, Ali A. Multiple Drug Resistance and Virulence Profiling ofSalmonella entericaSerovars Typhimurium and Enteritidis from Poultry Farms of Faisalabad, Pakistan. Microb Drug Resist 2019; 25:133-142. [DOI: 10.1089/mdr.2018.0121] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Muhammad Wajid
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
- Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan
| | - Asad Bashir Awan
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
- Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan
| | - Muhammad Kashif Saleemi
- Department of Pathology, Faculty of Veterinary Sciences, University of Agriculture, Faisalabad, Pakistan
| | - Jörg Weinreich
- Institute for Biotechnology, Brandenburg University of Technology Cottbus-Senftenberg, Senftenberg, Germany
| | - Peter Schierack
- Institute for Biotechnology, Brandenburg University of Technology Cottbus-Senftenberg, Senftenberg, Germany
| | - Yasra Sarwar
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
- Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan
| | - Aamir Ali
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering, Faisalabad, Pakistan
- Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan
- Institute for Biotechnology, Brandenburg University of Technology Cottbus-Senftenberg, Senftenberg, Germany
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13
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Antimicrobial resistance and resistance genes in Salmonella strains isolated from broiler chickens along the slaughtering process in China. Int J Food Microbiol 2017; 259:43-51. [DOI: 10.1016/j.ijfoodmicro.2017.07.023] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 06/15/2017] [Accepted: 07/31/2017] [Indexed: 02/07/2023]
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14
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Wang J, Li Y, Xu X, Liang B, Wu F, Yang X, Ma Q, Yang C, Hu X, Liu H, Li H, Sheng C, Xie J, Du X, Hao R, Qiu S, Song H. Antimicrobial Resistance of Salmonella enterica Serovar Typhimurium in Shanghai, China. Front Microbiol 2017; 8:510. [PMID: 28400764 PMCID: PMC5368216 DOI: 10.3389/fmicb.2017.00510] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 03/13/2017] [Indexed: 11/13/2022] Open
Abstract
We aimed to analyze the antimicrobial resistance phenotypes and to elucidate the molecular mechanisms underlying resistance to cephalosporins, ciprofloxacin, and azithromycin in Salmonella enterica serovar Typhimurium isolates identified from patients with diarrhea in Shanghai. The isolates showed high rates of resistance to traditional antimicrobials, and 20.6, 12.7, and 5.5% of them exhibited decreased susceptibility to cephalosporins, ciprofloxacin, and azithromycin, respectively. Notably, 473 (84.6%) isolates exhibited multidrug resistance (MDR), including 161 (28.8%) isolates that showed an ACSSuT profile. Twenty-two MDR isolates concurrently exhibited decreased susceptibility to cephalosporins and ciprofloxacin, and six of them were co-resistant to azithromycin. Of all the 71 isolates with decreased susceptibility to ciprofloxacin, 65 showed at least one mutation (D87Y, D87N, or D87G) in gyrA, among which seven isolates simultaneously had mutations of parC (S80R) (n = 6) or parC (T57S/S80R) (n = 1), while 49 isolates with either zero or one mutation in gyrA contained plasmid-mediated quinolone resistance (PMQR) genes including qnrB, qnrS, and aac(6')-Ib-cr. Among the 115 cephalosporin-resistant isolates, the most common ESBL gene was blaCTX-M, followed by blaTEM-1, blaOXA-1, and blaSHV -12. Eight subtypes of blaCTX-M were identified and blaCTX-M-14 (n = 22) and blaCTX-M-55 (n = 31) were found to be dominant. To the best of our knowledge, this is the first report of the presence of blaCTX-M-123 and blaCTX-M-125 in S. Typhimurium. Besides, mphA gene was identified in 15 of the 31 azithromycin-resistant isolates. Among the 22 isolates with reduced susceptibility to cephalosporins and ciprofloxacin, 15 contained ESBL and PMQR genes. Coexistence of these genes lead to the emergence of MDR and the transmission of them will pose great difficulties in S. Typhimurium treatments. Therefore, surveillance for these MDR isolates should be enhanced.
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Affiliation(s)
- Jinyan Wang
- Institute of Disease Control and Prevention, Academy of Military Medical SciencesBeijing, China; Western Theater CommandTianshui, China
| | - Yongrui Li
- Institute of Disease Control and Prevention, Academy of Military Medical SciencesBeijing, China; The Key laboratory of Pharmacology and Molecular Biology, Medical College, Henan University of Science and TechnologyLuoyang, China
| | - Xuebin Xu
- Shanghai Municipal Center for Disease Control and Prevention Shanghai, China
| | - Beibei Liang
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Fuli Wu
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Xiaoxia Yang
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Qiuxia Ma
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Chaojie Yang
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Xiaofeng Hu
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Hongbo Liu
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Hao Li
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Chunyu Sheng
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Jing Xie
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Xinying Du
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Rongzhang Hao
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Shaofu Qiu
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
| | - Hongbin Song
- Institute of Disease Control and Prevention, Academy of Military Medical Sciences Beijing, China
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15
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Oliva M, Monno R, D'Addabbo P, Pesole G, Dionisi AM, Scrascia M, Chiara M, Horner DS, Manzari C, Luzzi I, Calia C, D'Erchia AM, Pazzani C. A novel group of IncQ1 plasmids conferring multidrug resistance. Plasmid 2016; 89:22-26. [PMID: 27916622 DOI: 10.1016/j.plasmid.2016.11.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/28/2016] [Accepted: 11/29/2016] [Indexed: 11/28/2022]
Abstract
The IncQ is a group of non-conjugative but mobilisable plasmids that are found and stably maintained in a wide range of bacteria contributing to the spread of antimicrobial resistance genes and to the insurgence of multidrug resistant bacteria. Here we report the identification, in clinical Salmonella Typhimurium strains, of an IncQ1 plasmid (pNUC) which confers resistance to sulfamethoxazole, streptomycin and tetracycline through the presence of sul2, strAB and tetA genes, respectively. pNUC was detected in five multidrug resistant S. Typhimurium strains collected in Southern Italy from various hospitals and years of isolation. Bioinformatics analyses highlighted the presence of pNUC-like plasmids in pathogenic bacteria of various Enterobacteriaceae genera or species. Taken as a whole, these plasmids constitute a novel group of IncQ1 plasmids that might have originated through recombination events between a tetR-tetA gene cluster (possibly derived from a Tn1721) and a recipient IncQ1 plasmid related to RSF1010. Our findings raise concerns regarding the possible contribution of the newly identified group of IncQ1 plasmids to the spread of tetracycline resistance.
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Affiliation(s)
- M Oliva
- Department of Biology, University of Bari, via Orabona, 4, 70125 Bari, Italy
| | - R Monno
- Department of Basic Medical Sciences Neurosciences and Sense Organs Medical Faculty, University of Bari Piazza G. Cesare Policlinico, 70124 Bari, Italy
| | - P D'Addabbo
- Department of Biology, University of Bari, via Orabona, 4, 70125 Bari, Italy
| | - G Pesole
- Institute of Biomembranes and Bioenergetics, National Research Council, via Amendola 165A, 70125 Bari, Italy; Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, via Orabona, 4, 70125 Bari, Italy
| | - A M Dionisi
- Department of Infectious, Parasitic and Immuno-Mediated Diseases, Istituto Superiore di Sanità, Rome 00161, Italy
| | - M Scrascia
- Department of Biology, University of Bari, via Orabona, 4, 70125 Bari, Italy
| | - M Chiara
- Department of Biosciences, University of Milano, via Celoria 26, 20131 Milano, Italy
| | - D S Horner
- Department of Biosciences, University of Milano, via Celoria 26, 20131 Milano, Italy
| | - C Manzari
- Institute of Biomembranes and Bioenergetics, National Research Council, via Amendola 165A, 70125 Bari, Italy
| | - I Luzzi
- Department of Infectious, Parasitic and Immuno-Mediated Diseases, Istituto Superiore di Sanità, Rome 00161, Italy
| | - C Calia
- Department of Basic Medical Sciences Neurosciences and Sense Organs Medical Faculty, University of Bari Piazza G. Cesare Policlinico, 70124 Bari, Italy
| | - A M D'Erchia
- Institute of Biomembranes and Bioenergetics, National Research Council, via Amendola 165A, 70125 Bari, Italy; Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, via Orabona, 4, 70125 Bari, Italy
| | - C Pazzani
- Department of Biology, University of Bari, via Orabona, 4, 70125 Bari, Italy.
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16
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Doosti A, Mokhtari-Farsani A, Chehelgerdi M. Molecular Characterization of Gyr-A
Gene Polymorphism in Salmonella Enterica
Serovar Enteritidis Isolated of Egg Shells. J Food Saf 2016. [DOI: 10.1111/jfs.12276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Abbas Doosti
- Biotechnology Research Center, Islamic Azad University; Shahrekord Branch Shahrekord Iran
| | - Abbas Mokhtari-Farsani
- Biotechnology Research Center, Islamic Azad University; Shahrekord Branch Shahrekord Iran
- Young Researchers and Elite Club, Shahrekord Branch; Islamic Azad University; Shahrekord Iran
| | - Mohammad Chehelgerdi
- Biotechnology Research Center, Islamic Azad University; Shahrekord Branch Shahrekord Iran
- Young Researchers and Elite Club, Shahrekord Branch; Islamic Azad University; Shahrekord Iran
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17
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Diop A, Sambe-Ba B, Seck A, Dia ML, Timbiné LG, Niang AA, Ndiaye EHM, Sonko MA, Wane AA, Bercion R, Ndiaye O, Cissé MF, Gassama-Sow A. First Description of the Extended Spectrum-Beta-Lactamase Gene blaCTX-M-109 in Salmonella Grumpensis Strains Isolated from Neonatal Nosocomial Infections in Dakar, Senegal. PLoS One 2016; 11:e0157683. [PMID: 27355480 PMCID: PMC4927072 DOI: 10.1371/journal.pone.0157683] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 06/02/2016] [Indexed: 11/19/2022] Open
Abstract
Nosocomial infections are very common in African hospitals, particularly in neonatal units. These infections are most often caused by bacteria such as Escherichia coli, Klebsiella spp and Staphylococcus spp. Salmonella strains are rarely involved in nosocomial infections. Here, we report the first description of S. Grumpensis in neonatal infections in Senegal. Seventeen Salmonella strains were isolated from hospitalized infants' stool samples. The following resistance phenotype was described in strains: AMXRTICRCFR FOXRCFXRCTXRCAZRIMPSATMRNARNORRCIPRTMRGMRTERSXTR. All isolates were susceptible to imipenem, 15 out of 17 produced an extended spectrum ß-lactamase (ESBL). blaOXA-1, blaSHV-1, blaTEM-1, blaCTX-M1 genes were detected in strains 8, 13, 5 and 8, respectively. blaCTX-M1 sequencing revealed the presence of blaCTX-M-109. Thirteen of the 17 Salmonella Grumpensis strains were analyzed by PFGE. These 13 isolates belonged to a single pulsotype and were genotypically identical. This is the first report of neonatal S. Grumpensis infections in Senegal, and the first report of blaCTX-M-109 in the genus Salmonella.
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Affiliation(s)
- Amadou Diop
- Unité de Bactériologie Expérimentale (UBE), Institut Pasteur de Dakar, Dakar, Sénégal
- Laboratoire de Bactériologie-Virologie Centre Hospitalier National d’Enfants Albert Royer de Fann Dakar, Dakar, Sénégal
- Faculté de Médecine, Pharmacie et d’Odontologie Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
| | - Bissoume Sambe-Ba
- Unité de Bactériologie Expérimentale (UBE), Institut Pasteur de Dakar, Dakar, Sénégal
| | - Abdoulaye Seck
- Laboratoire d’Analyses Biologiques et Médicales (LABM), Institut Pasteur de Dakar, Dakar, Sénégal
- Faculté de Médecine, Pharmacie et d’Odontologie Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
| | - Mouhamadou Lamine Dia
- Laboratoire de Bactériologie-Virologie Centre Hospitalier National de FANN, Dakar, Dakar, Sénégal
- Faculté de Médecine, Pharmacie et d’Odontologie Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
| | - Lassina Gadi Timbiné
- Unité de Bactériologie Expérimentale (UBE), Institut Pasteur de Dakar, Dakar, Sénégal
| | - Aïssatou Ameth Niang
- Unité de Bactériologie Expérimentale (UBE), Institut Pasteur de Dakar, Dakar, Sénégal
| | - El Hadji Momar Ndiaye
- Laboratoire de Bactériologie-Virologie Centre Hospitalier National d’Enfants Albert Royer de Fann Dakar, Dakar, Sénégal
| | - Mouhamadou Abdoulaye Sonko
- Laboratoire de Bactériologie-Virologie Centre Hospitalier National d’Enfants Albert Royer de Fann Dakar, Dakar, Sénégal
| | - Abdoul Aziz Wane
- Unité de Bactériologie Expérimentale (UBE), Institut Pasteur de Dakar, Dakar, Sénégal
| | - Raymond Bercion
- Laboratoire d’Analyses Biologiques et Médicales (LABM), Institut Pasteur de Dakar, Dakar, Sénégal
| | - Ousmane Ndiaye
- Unité de Néonatologie, Centre Hospitalier Abass Ndao, Dakar, Sénégal
- Faculté de Médecine, Pharmacie et d’Odontologie Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
| | - Moussa Fafa Cissé
- Laboratoire de Bactériologie-Virologie Centre Hospitalier National d’Enfants Albert Royer de Fann Dakar, Dakar, Sénégal
- Faculté de Médecine, Pharmacie et d’Odontologie Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
| | - Amy Gassama-Sow
- Unité de Bactériologie Expérimentale (UBE), Institut Pasteur de Dakar, Dakar, Sénégal
- Department de Génie Chimique et Biologie Appliquée, Ecole Supérieure Polytechnique, Université Cheikh Anta Diop de Dakar, Dakar, Sénégal
- * E-mail:
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18
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Mahmud T, Hassan MM, Alam M, Khan MM, Bari MS, Islam A. Prevalence and multidrug-resistant pattern of Salmonella from the eggs and egg-storing trays of retail markets of Bangladesh. INTERNATIONAL JOURNAL OF ONE HEALTH 2016. [DOI: 10.14202/ijoh.2016.7-11] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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19
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Lima A, Rodrigues D, Araújo M, Reis E, Festivo M, Rodrigues E, Lázaro N. Sorovares e perfil de suscetibilidade a antimicrobianos em Salmonella spp. isoladas de produtos de origem suína. ARQ BRAS MED VET ZOO 2016. [DOI: 10.1590/1678-4162-7997] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Foi analisado um total de 1824 cepas de Salmonella, isoladas de alimentos de origem suína, no período de janeiro/2005 a junho/2010. As cepas, provenientes de diferentes regiões do país, foram recebidas pelo Labent/IOC/FIocruz para caracterização antigênica conclusiva. Foram identificados 41 sorovares, destacando-se: Typhimurium, Derby, Enteritidis, Panama, Infantis e Anatum. Aspectos bacteriológicos e epidemiológicos relacionados a esses sorovares foram discutidos. O teste de suscetibilidade aos antimicrobianos foi realizado em 357 amostras, 257 (72%) foram resistentes a uma ou mais drogas, e destas, 31,9% mostraram-se multirresistentes. A variedade de sorovares observada neste estudo confirma o papel dos suínos na cadeia alimentar como importantes reservatórios de Salmonella, agravado ainda pelo elevado percentual de cepas resistentes a um ou mais antimicrobianos, alertando para uma condição de risco à saúde pública.
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Affiliation(s)
- A.L. Lima
- Universidade Federal Rural do Rio de Janeiro
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20
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Murgia M, Bouchrif B, Timinouni M, Al-Qahtani A, Al-Ahdal MN, Cappuccinelli P, Rubino S, Paglietti B. Antibiotic resistance determinants and genetic analysis of Salmonella enterica isolated from food in Morocco. Int J Food Microbiol 2015; 215:31-9. [PMID: 26325598 DOI: 10.1016/j.ijfoodmicro.2015.08.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 07/21/2015] [Accepted: 08/07/2015] [Indexed: 10/23/2022]
Abstract
Antimicrobial-resistant non-typhoidal Salmonella (NTS) are an important cause of infection in Africa, but there is a lack of information on their molecular mechanisms of resistance and epidemiology. This study contributes to fill this gap through the characterization by pulsed-field gel electrophoresis (PFGE), multilocus sequence typing (MLST), plasmid profiling and analysis of antibiotic-resistance determinants of 94 Salmonella enterica strains isolated from food in Morocco. PFGE revealed considerable heterogeneity among the strains, showing 32 pulsotypes. MLST of strains representative of the different serovars evidenced 13 sequence types (STs), three of which were newly identified (ST1694, ST1768 and ST1818) and nine not previously reported in Morocco. Thirty-four strains harbored from one to four plasmids, of IncI1 group in S. Mbandaka, IncFIIA in S. Typhimurium, IncL/M in S. Hadar and S. Blockley. For the first time in Morocco an intact Salmonella Genomic Island 1 (SGI1) carrying the resistance genes aadA2, floR, tetG, blaPSE-1 and sul1 was detected in S. Typhimurium DT104. In serovar Hadar resistance to ampicillin, tetracycline and streptomycin was associated to blaTEM-1, tetA and strA genes respectively, whereas one mutation in gyrA (Asp87Asn) and one in parC (Thr54Ser) genes conferred resistance to nalidixic acid. These findings improve the information on foodborne Salmonella in Morocco, evidencing the presence of MDR strains potentially dangerous to humans, and provide useful data for future studies.
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Affiliation(s)
- Manuela Murgia
- Department of Biomedical Sciences, University of Sassari, V. le San Pietro 43/B, 07100 Sassari, Italy.
| | - Brahim Bouchrif
- Laboratoire de microbiologie et d'hygiène des aliments et des eaux, Institut Pasteur in Morocco, 1 place Louis Pasteur, Casablanca 20100, Morocco.
| | - Mohammed Timinouni
- Laboratoire de microbiologie et biologie moléculaire, Institut Pasteur in Morocco, 1 place Louis Pasteur, Casablanca 20100, Morocco.
| | - Ahmed Al-Qahtani
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Centre, P.O. Box 3354 (MBC-03), Riyadh 11211, Saudi Arabia.
| | - Mohammed N Al-Ahdal
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Centre, P.O. Box 3354 (MBC-03), Riyadh 11211, Saudi Arabia.
| | - Pietro Cappuccinelli
- Department of Biomedical Sciences, University of Sassari, V. le San Pietro 43/B, 07100 Sassari, Italy.
| | - Salvatore Rubino
- Department of Biomedical Sciences, University of Sassari, V. le San Pietro 43/B, 07100 Sassari, Italy; Department of Infection and Immunity, King Faisal Specialist Hospital and Research Centre, P.O. Box 3354 (MBC-03), Riyadh 11211, Saudi Arabia.
| | - Bianca Paglietti
- Department of Biomedical Sciences, University of Sassari, V. le San Pietro 43/B, 07100 Sassari, Italy.
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Colobatiu L, Tabaran A, Flonta M, Oniga O, Mirel S, Mihaiu M. First description of plasmid-mediated quinolone resistance determinants and β-lactamase encoding genes in non-typhoidal Salmonella isolated from humans, one companion animal and food in Romania. Gut Pathog 2015; 7:16. [PMID: 26120367 PMCID: PMC4482042 DOI: 10.1186/s13099-015-0063-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 06/16/2015] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Gastroenteritis attributable to Salmonella enterica and the continuous increase in antimicrobial resistance of this gut pathogen, which compromises the use of previously effective treatments, is of great concern for public health. This study was conducted in order to investigate the presence of plasmid-mediated quinolone resistance (PMQR) determinants and β-lactamase-encoding genes, in S. enterica, isolated from humans, one companion animal and food. Moreover, the study aimed to identify potential vehicles of transmission of resistant strains to humans, with focus on food products (meat). METHODS A total of 20 S. enterica isolates recovered from food (chicken and pork meat), one companion animal and humans (stool samples), were examined for their serotype, antimicrobial susceptibility and the presence of PMQR and β-lactamase-encoding genes. Moreover, the genetic relatedness of nine Salmonella Infantis and ten Salmonella Enteritidis isolates was analyzed by pulsed-field gel electrophoresis (PFGE). RESULTS Among all isolates, 15 (75%) were multidrug-resistant (MDR) and the majority of them proved to be resistant to nalidixic acid and fluoroquinolones (FQs) (ciprofloxacin and levofloxacin). Twelve isolates (60%) harboured at least one PMQR gene [qnrA, qnrB, qnrS, aac (6')-Ib-cr or qepA] while seven isolates (35%) carried at least one β-lactamase-encoding gene (bla TEM, bla PSE-1, bla SHV or bla CTX-M). Moreover, two or more PMQR or β-lactamase-encoding genes co-existed in a single S. enterica isolate. A number of nine Salmonella Infantis, as well as the majority of Salmonella Enteritidis isolates analyzed by PFGE proved to be closely related. CONCLUSIONS The study demonstrated the co-existence of PMQR and β-lactamase-encoding genes among the Salmonella isolates recovered and confirmed that multiple mechanisms might be involved in the acquisition and spread of resistance determinants. The close genetic relatedness between the clinical and foodborne S. enterica isolates, suggested that chicken meat might be a possible cause of human salmonellosis in our country, during the study period. Results of this study might improve understanding of the antimicrobial resistance mechanisms and transmission dynamics of Salmonella spp. Here, we report for the first time the presence of PMQR and β-lactamase-encoding genes in S. enterica isolates, recovered from humans, one companion animal and food, in Romania.
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Affiliation(s)
- Liora Colobatiu
- />Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Alexandra Tabaran
- />Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
| | - Mirela Flonta
- />Infectious Diseases Hospital, Cluj-Napoca, Romania
| | - Ovidiu Oniga
- />Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Simona Mirel
- />Faculty of Pharmacy, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Marian Mihaiu
- />Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, Cluj-Napoca, Romania
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22
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Proroga YTR, Capuano F, Carullo MR, La Tela I, Capparelli R, Barco L, Pasquale V. Occurrence and antimicrobial resistance of Salmonella strains from food of animal origin in southern Italy. Folia Microbiol (Praha) 2015; 61:21-7. [PMID: 26084745 DOI: 10.1007/s12223-015-0407-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Accepted: 06/08/2015] [Indexed: 11/24/2022]
Abstract
Six hundred fourteen strains of Salmonella enterica were isolated from 16,926 samples of food of animal origin collected in southern Italy from 2003 to 2012. The isolates were identified, serotyped, and challenged against 15 antibiotics according to the protocol defined at national level for veterinary isolates of Salmonella (EnterVet surveillance network). Salmonella serotypes Typhimurium, Hadar, Enteritidis, Derby, and 4,[5],12:i:- were those most frequently isolated. The widest resistances were recorded towards sulfonamides (69 % of the isolates), trimethoprim-sulfamethoxazole (52 % of the isolates), and tetracycline (51 % of the isolates). The rate of multidrug resistance of the isolates decreased significantly from the first 5 years of the study period (82.6 %) to the last 5 years (54.3 %).
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Affiliation(s)
- Yolande T R Proroga
- Department of Food Microbiology - Centro Pilota Tipizzazione Salmonella, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy
| | - Federico Capuano
- Department of Food Microbiology - Centro Pilota Tipizzazione Salmonella, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy.
| | - Maria Rosaria Carullo
- Department of Food Microbiology - Centro Pilota Tipizzazione Salmonella, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy
| | - Immacolata La Tela
- Department of Food Microbiology - Centro Pilota Tipizzazione Salmonella, Istituto Zooprofilattico Sperimentale del Mezzogiorno, Portici, Naples, Italy
| | - Rosanna Capparelli
- Department DiSSPAPA, University of Naples "Federico II", Portici, Naples, Italy
| | - Lisa Barco
- National Reference Laboratory for Salmonellosis, Istituto Zooprofilattico Sperimentale delle Venezie, Legnaro, Padova, Italy
| | - Vincenzo Pasquale
- Department of Science and Technology, University of Naples "Parthenope", Naples, Italy
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23
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Diffusion and persistence of multidrug resistant Salmonella Typhimurium strains phage type DT120 in southern Italy. BIOMED RESEARCH INTERNATIONAL 2015; 2015:265042. [PMID: 26060815 PMCID: PMC4427771 DOI: 10.1155/2015/265042] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 08/29/2014] [Accepted: 09/11/2014] [Indexed: 12/02/2022]
Abstract
Sixty-two multidrug resistant Salmonella enterica serovar Typhimurium strains isolated from 255 clinical strains collected in Southern Italy in 2006–2008 were characterised for antimicrobial resistance genes, pulsotype, and phage type. Most strains (83.9%) were resistant to ampicillin, chloramphenicol, streptomycin, sulfamethoxazole, and tetracycline (ACSSuT) encoded in 88.5% by the Salmonella genomic island (SGI1) and in 11.5% by the InH-like integron (blaOXA-30–aadA1) and catA1, sul1, and tet(B) genes. STYMXB.0061 (75%) and DT120 (84.6%) were the prevalent pulsotype and phage type identified in these strains, respectively. Five other resistance patterns were found either in single or in a low number of isolates. The pandemic clone DT104 (ACSSuT encoded by SGI1) has been identified in Italy since 1992, while strains DT120 (ACSSuT encoded by SGI1) have never been previously reported in Italy. In Europe, clinical strains DT120 have been reported from sporadic outbreaks linked to the consumption of pork products. However, none of these strains were STYMXB.0061 and SGI1 positive. The prevalent identification and persistence of DT120 isolates would suggest, in Southern Italy, a phage type shifting of the pandemic DT104 clone pulsotype STYMXB.0061. Additionally, these findings raise epidemiological concern about the potential diffusion of these emerging multidrug resistant (SGI linked) DT120 strains.
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24
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Brunelle BW, Bearson BL, Bearson SMD. Chloramphenicol and tetracycline decrease motility and increase invasion and attachment gene expression in specific isolates of multidrug-resistant Salmonella enterica serovar Typhimurium. Front Microbiol 2015; 5:801. [PMID: 25688233 PMCID: PMC4311684 DOI: 10.3389/fmicb.2014.00801] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 12/28/2014] [Indexed: 01/04/2023] Open
Abstract
Salmonella enterica serovar Typhimurium is one of the most common serovars isolated from humans and livestock, and over 35% of these isolates are resistant to three or more antibiotics. Multidrug-resistant (MDR) Salmonella is a public health concern as it is associated with increased morbidity in patients compared to antibiotic sensitive strains, though it is unknown how the antibiotic resistant isolates lead to a more severe infection. Cellular invasion is temporally regulated in Salmonella and normally occurs during late-log and stationary growth. However, our previous work determined that a 30 min exposure to a sub-inhibitory concentration of tetracycline can induce the full invasion phenotype during early-log growth in certain MDR S. Typhimurium isolates. The current study examined whether sub-inhibitory concentrations of other antibiotics could also induce the invasiveness in the same set of isolates. Ampicillin and streptomycin had no effect on invasion, but certain concentrations of chloramphenicol were found to induce invasion in a subset of isolates. Two of the isolates induced by chloramphenicol were also inducible by tetracycline. RNA-seq analyses demonstrated that chloramphenicol and tetracycline both down-regulated motility gene expression, while up-regulating genes associated with attachment, invasion, and intracellular survival. Eleven fimbrial operons were up-regulated, which is notable as only three fimbrial operons were thought to be inducible in culture; six of these up-regulated operons have been reported to play a role in Salmonella persistence in mice. Overall, these data show that the normal progression of the genetic pathways that regulate invasion can be expedited to occur within 30 min due to antibiotic exposure. This altered invasion process due to antibiotics may play a role in the increased intensity and duration of infection observed in patients with MDR Salmonella.
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Affiliation(s)
- Brian W Brunelle
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture Ames, IA, USA
| | - Bradley L Bearson
- Agroecosystems Management Research Unit, National Laboratory for Agriculture and the Environment, Agricultural Research Service, United States Department of Agriculture Ames, IA, USA
| | - Shawn M D Bearson
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, Agricultural Research Service, United States Department of Agriculture Ames, IA, USA
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25
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Le Hello S. Salmonella : une bactérie multi-résistante aux antibiotiques dans nos assiettes. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.antinf.2014.10.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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26
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Yang B, Wang Q, Cui S, Wang Y, Shi C, Xia X, Xi M, Wang X, Shi X, Wang D, Zhang Z, Meng J. Characterization of extended-spectrum beta-lactamases-producing Salmonella strains isolated from retail foods in Shaanxi and Henan Province, China. Food Microbiol 2014; 42:14-8. [PMID: 24929711 DOI: 10.1016/j.fm.2014.02.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 02/03/2014] [Accepted: 02/11/2014] [Indexed: 10/25/2022]
Abstract
Extended-spectrum beta-lactamases (ESBL)-producing Salmonella enterica have been reported worldwide. However, research on foodborne ESBL-producing Salmonella has been rarely conducted. One hundred and thirty eight ceftriaxone or/and cefoperazone-resistant Salmonella strains recovered from retail foods in Shaanxi and Henan Province, China, were screened for ESBL. The ESBL-producing strains were further characterized for antimicrobial resistance, pulse field gel electrophoresis (PFGE) profiles, and the presence of blaTEM, blaSHV, blaOXA, blaCTX-M, and blaPSE. The transferability of ESBL encoding genes to a susceptible Escherichia coli strain was also investigated. Thirty (21.7%) isolates were identified as ESBL positive and belonged to S. enterica serovars Indiana, Shubra, Typhimurium, and Enteritidis. S. Indiana and S. Shubra isolates were firstly identified in ESBL-producing strains. Great genetic diversity was seen among these ESBL-producing strains. Nucleotide sequence analysis revealed that blaTEM-1B was the only ESBL-encoding gene among the genes tested and was detected in 26 of 30 strains and was carried in the conjugative plasmids. The blaTEM-1B gene was transferable through conjugation at rates ranging from 4.71 × 10(-7) to 7.55 × 10(-6) transconjugant per recipient cell. This study provides the evidence of foodborne ESBL-producing Salmonella, and the transferability of plasmid harboring ESBL-encoding genes could possibly contribute to the dissemination of ESBL.
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Affiliation(s)
- Baowei Yang
- Northwest A&F University, Shaanxi 712100, China
| | | | - Shenghui Cui
- National Institutes for Food and Drug Control, Beijing 100050, China
| | - Yin Wang
- Northwest A&F University, Shaanxi 712100, China
| | - Chao Shi
- Northwest A&F University, Shaanxi 712100, China
| | - Xiaodong Xia
- Northwest A&F University, Shaanxi 712100, China.
| | - Meili Xi
- Northwest A&F University, Shaanxi 712100, China
| | - Xin Wang
- Northwest A&F University, Shaanxi 712100, China
| | - Xianming Shi
- Shanghai Jiaotong University, Shanghai 200240, China
| | - Dapeng Wang
- Shanghai Jiaotong University, Shanghai 200240, China
| | | | - Jianghong Meng
- Northwest A&F University, Shaanxi 712100, China; Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742, USA; Joint Institute for Food Safety and Applied Nutrition, College Park, MD 20742, USA
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27
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Wuyts V, Mattheus W, De Laminne de Bex G, Wildemauwe C, Roosens NHC, Marchal K, De Keersmaecker SCJ, Bertrand S. MLVA as a tool for public health surveillance of human Salmonella Typhimurium: prospective study in Belgium and evaluation of MLVA loci stability. PLoS One 2013; 8:e84055. [PMID: 24391880 PMCID: PMC3877154 DOI: 10.1371/journal.pone.0084055] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Accepted: 11/15/2013] [Indexed: 11/19/2022] Open
Abstract
Surveillance of Salmonella enterica subsp. enterica serovar Typhimurium (S. Typhimurium) is generally considered to benefit from molecular techniques like multiple-locus variable-number of tandem repeats analysis (MLVA), which allow earlier detection and confinement of outbreaks. Here, a surveillance study, including phage typing, antimicrobial susceptibility testing and the in Europe most commonly used 5-loci MLVA on 1,420 S. Typhimurium isolates collected between 2010 and 2012 in Belgium, was used to evaluate the added value of MLVA for public health surveillance. Phage types DT193, DT195, DT120, DT104, DT12 and U302 dominate the Belgian S. Typhimurium population. A combined resistance to ampicillin, streptomycin, sulphonamides and tetracycline (ASSuT) with or without additional resistances was observed for 42.5% of the isolates. 414 different MLVA profiles were detected, of which 14 frequent profiles included 44.4% of the S. Typhimurium population. During a serial passage experiment on selected isolates to investigate the in vitro stability of the 5 MLVA loci, variations over time were observed for loci STTR6, STTR10, STTR5 and STTR9. This study demonstrates that MLVA improves public health surveillance of S. Typhimurium. However, the 5-loci MLVA should be complemented with other subtyping methods for investigation of possible outbreaks with frequent MLVA profiles. Also, variability in these MLVA loci should be taken into account when investigating extended outbreaks and studying dynamics over longer periods.
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Affiliation(s)
- Véronique Wuyts
- Department of Microbial and Molecular Systems, KU Leuven, Leuven, Belgium
- Platform Biotechnology and Molecular Biology, Scientific Institute of Public Health (WIVISP), Brussels, Belgium
| | - Wesley Mattheus
- National Reference Centre for Salmonella and Shigella, Bacterial Diseases Division, Communicable and Infectious Diseases, Scientific Institute of Public Health (WIV-ISP), Brussels, Belgium
| | - Guillaume De Laminne de Bex
- National Reference Centre for Salmonella and Shigella, Bacterial Diseases Division, Communicable and Infectious Diseases, Scientific Institute of Public Health (WIV-ISP), Brussels, Belgium
| | - Christa Wildemauwe
- National Reference Centre for Salmonella and Shigella, Bacterial Diseases Division, Communicable and Infectious Diseases, Scientific Institute of Public Health (WIV-ISP), Brussels, Belgium
| | - Nancy H. C. Roosens
- Platform Biotechnology and Molecular Biology, Scientific Institute of Public Health (WIVISP), Brussels, Belgium
| | - Kathleen Marchal
- Department of Microbial and Molecular Systems, KU Leuven, Leuven, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, Gent, Belgium
- Department of Information Technology, Ghent University, IMinds, Gent, Belgium
| | | | - Sophie Bertrand
- National Reference Centre for Salmonella and Shigella, Bacterial Diseases Division, Communicable and Infectious Diseases, Scientific Institute of Public Health (WIV-ISP), Brussels, Belgium
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28
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Le Hello S, Bekhit A, Granier SA, Barua H, Beutlich J, Zając M, Münch S, Sintchenko V, Bouchrif B, Fashae K, Pinsard JL, Sontag L, Fabre L, Garnier M, Guibert V, Howard P, Hendriksen RS, Christensen JP, Biswas PK, Cloeckaert A, Rabsch W, Wasyl D, Doublet B, Weill FX. The global establishment of a highly-fluoroquinolone resistant Salmonella enterica serotype Kentucky ST198 strain. Front Microbiol 2013; 4:395. [PMID: 24385975 PMCID: PMC3866546 DOI: 10.3389/fmicb.2013.00395] [Citation(s) in RCA: 93] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Accepted: 12/03/2013] [Indexed: 11/13/2022] Open
Abstract
While the spread of Salmonella enterica serotype Kentucky resistant to ciprofloxacin across Africa and the Middle-East has been described recently, the presence of this strain in humans, food, various animal species (livestock, pets, and wildlife) and in environment is suspected in other countries of different continents. Here, we report results of an in-depth molecular epidemiological study on a global human and non-human collection of S. Kentucky (n = 70). We performed XbaI-pulsed field gel electrophoresis and multilocus sequence typing, assessed mutations in the quinolone resistance-determining regions, detected β-lactam resistance mechanisms, and screened the presence of the Salmonella genomic island 1 (SGI1). In this study, we highlight the rapid and extensive worldwide dissemination of the ciprofloxacin-resistant S. Kentucky ST198-X1-SGI1 strain since the mid-2000s in an increasingly large number of contaminated sources, including the environment. This strain has accumulated an increasing number of chromosomal and plasmid resistance determinants and has been identified in the Indian subcontinent, Southeast Asia and Europe since 2010. The second substitution at position 87 in GyrA (replacing the amino acid Asp) appeared helpful for epidemiological studies to track the origin of contamination. This global study provides evidence leading to the conclusion that high-level resistance to ciprofloxacin in S. Kentucky is a simple microbiological trait that facilitates the identification of the epidemic clone of interest, ST198-X1-SGI1. Taking this into account is essential in order to detect and monitor it easily and to take rapid measures in livestock to ensure control of this infection.
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Affiliation(s)
- Simon Le Hello
- Unité des Bactéries Pathogènes Entériques, Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur Paris, France
| | - Amany Bekhit
- Unité des Bactéries Pathogènes Entériques, Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur Paris, France ; Biochemistry Department, Faculty of Pharmacy, Minia University Minia, Egypt
| | - Sophie A Granier
- Unité Caractérisation et épidémiologie Bactérienne, Laboratoire de Sécurité des Aliments, Université Paris-Est Anses, Maisons-Alfort, France
| | - Himel Barua
- Department of Microbiology, Faculty of Veterinary Medicine, Chittagong Veterinary and Animal Sciences University Chittagong, Bangladesh
| | - Janine Beutlich
- Unit Antimicrobial Resistance and Resistance Determinants, National Reference Laboratory for Antimicrobial Resistance, Department Biological Safety, Federal Institute for Risk Assessment Berlin, Germany
| | - Magdalena Zając
- Department of Microbiology, National Veterinary Research Institute Puławy, Poland
| | - Sebastian Münch
- National Reference Centre for Salmonellae and other Bacterial Enteric Pathogens, Robert Koch Institute Wernigerode, Germany
| | - Vitali Sintchenko
- Centre for Infectious Diseases and Microbiology - Public Health, University of Sydney, ICPMR Sydney, NSW, Australia
| | - Brahim Bouchrif
- Institut Pasteur du Maroc, Sécurité alimentaire et Environnement Casablanca, Maroc
| | - Kayode Fashae
- Department of Microbiology, University of Ibadan Ibadan, Nigeria
| | | | - Lucile Sontag
- Unité des Bactéries Pathogènes Entériques, Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur Paris, France
| | - Laetitia Fabre
- Unité des Bactéries Pathogènes Entériques, Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur Paris, France
| | - Martine Garnier
- Unité des Bactéries Pathogènes Entériques, Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur Paris, France
| | - Véronique Guibert
- Unité des Bactéries Pathogènes Entériques, Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur Paris, France
| | - Peter Howard
- Institut Pasteur du Maroc, Sécurité alimentaire et Environnement Casablanca, Maroc
| | - Rene S Hendriksen
- WHO Collaborating Center for Antimicrobial Resistance in Foodborne Pathogens and European Union Reference Laboratory for Antimicrobial Resistance, Technical University of Denmark Kgs. Lyngby, Denmark
| | - Jens P Christensen
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen Frederiksberg, Copenhagen, Denmark
| | - Paritosh K Biswas
- Department of Microbiology, Faculty of Veterinary Medicine, Chittagong Veterinary and Animal Sciences University Chittagong, Bangladesh
| | - Axel Cloeckaert
- Institut national de la recherche agronomique, UMR1282 Infectiologie et Santé publique Nouzilly, France ; Université François Rabelais de Tours, UMR1282 Infectiologie et Santé publique Tours, France
| | - Wolfgang Rabsch
- National Reference Centre for Salmonellae and other Bacterial Enteric Pathogens, Robert Koch Institute Wernigerode, Germany
| | - Dariusz Wasyl
- Department of Microbiology, National Veterinary Research Institute Puławy, Poland
| | - Benoit Doublet
- Institut national de la recherche agronomique, UMR1282 Infectiologie et Santé publique Nouzilly, France ; Université François Rabelais de Tours, UMR1282 Infectiologie et Santé publique Tours, France
| | - François-Xavier Weill
- Unité des Bactéries Pathogènes Entériques, Centre National de Référence des Escherichia coli, Shigella et Salmonella, Institut Pasteur Paris, France
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Salmonella enterica serovar Typhimurium skills to succeed in the host: virulence and regulation. Clin Microbiol Rev 2013; 26:308-41. [PMID: 23554419 DOI: 10.1128/cmr.00066-12] [Citation(s) in RCA: 453] [Impact Index Per Article: 41.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Salmonella enterica serovar Typhimurium is a primary enteric pathogen infecting both humans and animals. Infection begins with the ingestion of contaminated food or water so that salmonellae reach the intestinal epithelium and trigger gastrointestinal disease. In some patients the infection spreads upon invasion of the intestinal epithelium, internalization within phagocytes, and subsequent dissemination. In that case, antimicrobial therapy, based on fluoroquinolones and expanded-spectrum cephalosporins as the current drugs of choice, is indicated. To accomplish the pathogenic process, the Salmonella chromosome comprises several virulence mechanisms. The most important virulence genes are those located within the so-called Salmonella pathogenicity islands (SPIs). Thus far, five SPIs have been reported to have a major contribution to pathogenesis. Nonetheless, further virulence traits, such as the pSLT virulence plasmid, adhesins, flagella, and biofilm-related proteins, also contribute to success within the host. Several regulatory mechanisms which synchronize all these elements in order to guarantee bacterial survival have been described. These mechanisms govern the transitions from the different pathogenic stages and drive the pathogen to achieve maximal efficiency inside the host. This review focuses primarily on the virulence armamentarium of this pathogen and the extremely complicated regulatory network controlling its success.
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Torpdahl M, Lauderdale TL, Liang SY, Li I, Wei SH, Chiou CS. Human isolates of Salmonella enterica serovar Typhimurium from Taiwan displayed significantly higher levels of antimicrobial resistance than those from Denmark. Int J Food Microbiol 2013; 161:69-75. [DOI: 10.1016/j.ijfoodmicro.2012.11.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 11/06/2012] [Accepted: 11/18/2012] [Indexed: 11/16/2022]
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β-Lactamases, transferable quinolone resistance determinants, and class 1 integron-mediated antimicrobial resistance in human clinical Salmonella enterica isolates of non-Typhimurium serotypes. Int J Med Microbiol 2013; 303:25-31. [DOI: 10.1016/j.ijmm.2012.11.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Revised: 11/09/2012] [Accepted: 11/11/2012] [Indexed: 01/06/2023] Open
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Phenotypic-genotypic resistance in Salmonella spp. isolated from cattle carcasses from the north central zone of the State of Mexico. Trop Anim Health Prod 2012; 45:995-1000. [PMID: 23224863 DOI: 10.1007/s11250-012-0323-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/21/2012] [Indexed: 10/27/2022]
Abstract
Salmonella is a public and animal health problem due to the generation of strains multiresistant to antimicrobial products. The objective of this study was to determine prevalence and antimicrobial phenotypic and genotypic resistance of Salmonella spp. isolated from beef cattle carcasses killed in slaughterhouses of the north central zone of the State of Mexico. Sampling was carried out according to the European Directive 2001/471/EC; isolation and identification of the strain was carried out according to the Mexican Official Standard NOM-114-SSA1-1994; resistance was established by CMI according to the National Committees for Clinical Laboratory Standards (NCLS) and multiplex PCR according to Ahmed et al. (Journal of Applied Microbiology 106:402-409, 2009) with PSE-1, tetG, qnrS, FloR, STR, and sul1 oligonucleotides. Twenty-seven strains of Salmonella spp. were obtained from 327 samples (prevalence of 0.083); 19 strains (70 %) were resistant to 10 μg/ml of ampicillin, 15 of these (79 %) had the PSE-1 gene; 22 strains (84 %) were resistant to 30 μg/ml streptomycin, 14 of these (63.6 %) had the STR gene. Genes PSE-1 and STR were factors in the presence of resistance, the rest of the genes (tetG, qnrS, FloR, and sul1) were not factors of resistance in the studied strains.
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Fabre L, Zhang J, Guigon G, Le Hello S, Guibert V, Accou-Demartin M, de Romans S, Lim C, Roux C, Passet V, Diancourt L, Guibourdenche M, Issenhuth-Jeanjean S, Achtman M, Brisse S, Sola C, Weill FX. CRISPR typing and subtyping for improved laboratory surveillance of Salmonella infections. PLoS One 2012; 7:e36995. [PMID: 22623967 PMCID: PMC3356390 DOI: 10.1371/journal.pone.0036995] [Citation(s) in RCA: 163] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2012] [Accepted: 04/11/2012] [Indexed: 12/11/2022] Open
Abstract
Laboratory surveillance systems for salmonellosis should ideally be based on the rapid serotyping and subtyping of isolates. However, current typing methods are limited in both speed and precision. Using 783 strains and isolates belonging to 130 serotypes, we show here that a new family of DNA repeats named CRISPR (clustered regularly interspaced short palindromic repeats) is highly polymorphic in Salmonella. We found that CRISPR polymorphism was strongly correlated with both serotype and multilocus sequence type. Furthermore, spacer microevolution discriminated between subtypes within prevalent serotypes, making it possible to carry out typing and subtyping in a single step. We developed a high-throughput subtyping assay for the most prevalent serotype, Typhimurium. An open web-accessible database was set up, providing a serotype/spacer dictionary and an international tool for strain tracking based on this innovative, powerful typing and subtyping tool.
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Affiliation(s)
- Laëtitia Fabre
- Institut Pasteur, Unité des Bactéries Pathogènes Entériques, Paris, France
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Le Hello S, Brisabois A, Accou-Demartin M, Josse A, Marault M, Francart S, Da Silva NJ, Weill FX. Foodborne outbreak and nonmotile Salmonella enterica variant, France. Emerg Infect Dis 2012; 18:132-4. [PMID: 22257550 PMCID: PMC3310095 DOI: 10.3201/eid1801.110450] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report a food-related outbreak of salmonellosis in humans caused by a nonmotile variant of Salmonella enterica serotype Typhimurium in France in 2009. This nonmotile variant had been circulating in laying hens but was not considered as Typhimurium and consequently escaped European poultry flock regulations.
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Deng X, Ran L, Wu S, Ke B, He D, Yang X, Zhang Y, Ke C, Klena JD, Yan M, Feng Z, Kan B, Liu X, Mikoleit M, Varma JK. Laboratory-Based Surveillance of Non-typhoidal Salmonella Infections in Guangdong Province, China. Foodborne Pathog Dis 2012; 9:305-12. [DOI: 10.1089/fpd.2011.1008] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Xiaoling Deng
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, Guangdong Province, People's Republic of China
| | - Lu Ran
- Office of Disease Control and Emergency Response, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Shuyu Wu
- U.S. Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Bixia Ke
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, Guangdong Province, People's Republic of China
| | - Dongmei He
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, Guangdong Province, People's Republic of China
| | - Xingfen Yang
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, Guangdong Province, People's Republic of China
| | - Yonghui Zhang
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, Guangdong Province, People's Republic of China
| | - Changwen Ke
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, Guangdong Province, People's Republic of China
| | - John D. Klena
- U.S. Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Meiying Yan
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Prevention and Control, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Zijian Feng
- Office of Disease Control and Emergency Response, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Biao Kan
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Prevention and Control, Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Xin Liu
- U.S. Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Matthew Mikoleit
- U.S. Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Jay K. Varma
- U.S. Centers for Disease Control and Prevention, Atlanta, Georgia
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Amalaradjou MAR, Bhunia AK. Modern approaches in probiotics research to control foodborne pathogens. ADVANCES IN FOOD AND NUTRITION RESEARCH 2012; 67:185-239. [PMID: 23034117 PMCID: PMC7150249 DOI: 10.1016/b978-0-12-394598-3.00005-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Foodborne illness is a serious public health concern. There are over 200 known microbial, chemical, and physical agents that are known to cause foodborne illness. Efforts are made for improved detection, control and prevention of foodborne pathogen in food, and pathogen associated diseases in the host. Several commonly used approaches to control foodborne pathogens include antibiotics, natural antimicrobials, bacteriophages, bacteriocins, ionizing radiations, and heat. In addition, probiotics offer a potential intervention strategy for the prevention and control of foodborne infections. This review focuses on the use of probiotics and bioengineered probiotics to control foodborne pathogens, their antimicrobial actions, and their delivery strategies. Although probiotics have been demonstrated to be effective in antagonizing foodborne pathogens, challenges exist in the characterization and elucidation of underlying molecular mechanisms of action and in the development of potential delivery strategies that could maintain the viability and functionality of the probiotic in the target organ.
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Mather AE, Denwood MJ, Haydon DT, Matthews L, Mellor DJ, Coia JE, Brown DJ, Reid SWJ. The prevalences of Salmonella Genomic Island 1 variants in human and animal Salmonella Typhimurium DT104 are distinguishable using a Bayesian approach. PLoS One 2011; 6:e27220. [PMID: 22125606 PMCID: PMC3220677 DOI: 10.1371/journal.pone.0027220] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Accepted: 10/12/2011] [Indexed: 11/19/2022] Open
Abstract
Throughout the 1990 s, there was an epidemic of multidrug resistant Salmonella Typhimurium DT104 in both animals and humans in Scotland. The use of antimicrobials in agriculture is often cited as a major source of antimicrobial resistance in pathogenic bacteria of humans, suggesting that DT104 in animals and humans should demonstrate similar prevalences of resistance determinants. Until very recently, only the application of molecular methods would allow such a comparison and our understanding has been hindered by the fact that surveillance data are primarily phenotypic in nature. Here, using large scale surveillance datasets and a novel Bayesian approach, we infer and compare the prevalence of Salmonella Genomic Island 1 (SGI1), SGI1 variants, and resistance determinants independent of SGI1 in animal and human DT104 isolates from such phenotypic data. We demonstrate differences in the prevalences of SGI1, SGI1-B, SGI1-C, absence of SGI1, and tetracycline resistance determinants independent of SGI1 between these human and animal populations, a finding that challenges established tenets that DT104 in domestic animals and humans are from the same well-mixed microbial population.
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Affiliation(s)
- Alison E. Mather
- Boyd Orr Centre for Population and Ecosystem Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Matthew J. Denwood
- Boyd Orr Centre for Population and Ecosystem Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Daniel T. Haydon
- Boyd Orr Centre for Population and Ecosystem Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Louise Matthews
- Boyd Orr Centre for Population and Ecosystem Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - Dominic J. Mellor
- Boyd Orr Centre for Population and Ecosystem Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
| | - John E. Coia
- Scottish Salmonella Shigella and Clostridium difficile Reference Laboratory, Stobhill Hospital, Glasgow, United Kingdom
| | - Derek J. Brown
- Scottish Salmonella Shigella and Clostridium difficile Reference Laboratory, Stobhill Hospital, Glasgow, United Kingdom
| | - Stuart W. J. Reid
- Boyd Orr Centre for Population and Ecosystem Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
- * E-mail:
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Ran L, Wu S, Gao Y, Zhang X, Feng Z, Wang Z, Kan B, Klena JD, Lo Fo Wong DM, Angulo FJ, Varma JK. Laboratory-Based Surveillance of NontyphoidalSalmonellaInfections in China. Foodborne Pathog Dis 2011; 8:921-7. [PMID: 21492026 DOI: 10.1089/fpd.2010.0827] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Lu Ran
- Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Shuyu Wu
- United States Centers for Disease Control and Prevention China Office, Beijing, People's Republic of China
| | - Yongjun Gao
- Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Xin Zhang
- Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Zijian Feng
- Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Zijun Wang
- Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - Biao Kan
- Chinese Center for Disease Control and Prevention, Beijing, People's Republic of China
| | - John D. Klena
- United States Centers for Disease Control and Prevention China Office, Beijing, People's Republic of China
| | | | | | - Jay K. Varma
- United States Centers for Disease Control and Prevention China Office, Beijing, People's Republic of China
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40
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Prendergast D, O’Grady D, Fanning S, Cormican M, Delappe N, Egan J, Mannion C, Fanning J, Gutierrez M. Application of multiple locus variable number of tandem repeat analysis (MLVA), phage typing and antimicrobial susceptibility testing to subtype Salmonella enterica serovar Typhimurium isolated from pig farms, pork slaughterhouses and meat producing plants in Ireland. Food Microbiol 2011; 28:1087-94. [DOI: 10.1016/j.fm.2011.02.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2010] [Revised: 02/23/2011] [Accepted: 02/25/2011] [Indexed: 11/16/2022]
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Bugarel M, Granier SA, Weill FX, Fach P, Brisabois A. A multiplex real-time PCR assay targeting virulence and resistance genes in Salmonella enterica serotype Typhimurium. BMC Microbiol 2011; 11:151. [PMID: 21707966 PMCID: PMC3150258 DOI: 10.1186/1471-2180-11-151] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2010] [Accepted: 06/27/2011] [Indexed: 12/02/2022] Open
Abstract
Background Typhimurium is the main serotype of Salmonella enterica subsp. enterica implicated in food-borne diseases worldwide. This study aimed to detect the prevalence of ten markers combined in a macro-array based on multiplex real-time PCR. We targeted characteristic determinants located on pathogenicity islands (SPI-2 to -5, virulence plasmid pSLT and Salmonella genomic island 1 (SGI1)) as well as a specific 16S-23S rRNA intergenic spacer sequence of definitive type 104 (DT104). To investigate antimicrobial resistance, the study also targeted the presence of genes involved in sulfonamide (sul1) and beta-lactam (blaTEM) resistance. Finally, the intI1 determinant encoding integrase from class 1 integron was also investigated. Results A total of 538 unrelated S. Typhimurium strains isolated between 1999 and 2009 from various sources, including food animals, food products, human and environmental samples were studied. Based on the combined presence or absence of these markers, we distinguished 34 different genotypes, including three major genotypes encountered in 75% of the studied strains, Although SPI determinants were almost always detected, SGI1, intI1, sul1 and blaTEM determinants were found 47%, 52%, 54% and 12% of the time respectively, varying according to isolation source. Low-marker patterns were most often detected in poultry sources whereas full-marker patterns were observed in pig, cattle and human sources. Conclusion The GeneDisc® assay developed in this study madeit easier to explore variability within serotype Typhimurium by analyzing ten relevant gene determinants in a large collection of strains. This real-time multiplex method constitutes a valuable tool for strains characterization on epidemiological purposes.
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Affiliation(s)
- Marie Bugarel
- French Agency for Food, Environmental and Occupational Health Safety (ANSES) Laboratory for Food Safety, Maisons-Alfort Cedex, France
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42
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Borrelli L, Fioretti A, Ruggiero V, Santaniello A, Cringoli G, Ricci A, Barco L, Menna LF, Dipineto L. Salmonella typhimurium DT104 in farmed rabbits. J Vet Med Sci 2010; 73:385-7. [PMID: 21041990 DOI: 10.1292/jvms.10-0315] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A total of 1,000 rectal samples were collected from rabbits coming from 25 rabbit farms in southern Italy. All samples were processed for isolation of Salmonella spp. by standard culture method based on the ISO 6579:2002 method. Salmonella spp. was isolated from 1/25 rabbit farms analyzed. In particular, four out of 1,000 rectal swab samples, taken from young rabbits, were serotyped as S. Typhimurium and phage typed as S. Typhimurium DT104. All the isolates were resistant to ampicillin, chloramphenicol, streptomycin, sulfamethoxazole, and tetracycline (ACSSuT pentaresistance type). The findings of the present study suggest the rabbit as potential carrier of S. Typhimurium DT104.
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Affiliation(s)
- Luca Borrelli
- Department of Pathology and Animal Health, Faculty of Veterinary Medicine, University of Naples Federico II, Italy
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43
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Denwood MJ, Mather AE, Haydon DT, Matthews L, Mellor DJ, Reid SWJ. From phenotype to genotype: a Bayesian solution. Proc Biol Sci 2010; 278:1434-40. [PMID: 20980306 DOI: 10.1098/rspb.2010.1719] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The study of biological systems commonly depends on inferring the state of a 'hidden' variable, such as an underlying genotype, from that of an 'observed' variable, such as an expressed phenotype. However, this cannot be achieved using traditional quantitative methods when more than one genetic mechanism exists for a single observable phenotype. Using a novel latent class Bayesian model, it is possible to infer the prevalence of different genetic elements in a population given a sample of phenotypes. As an exemplar, data comprising phenotypic resistance to six antimicrobials obtained from passive surveillance of Salmonella Typhimurium DT104 are analysed to infer the prevalence of individual resistance genes, as well as the prevalence of a genomic island known as SGI1 and its variants. Three competing models are fitted to the data and distinguished between using posterior predictive p-values to assess their ability to predict the observed number of unique phenotypes. The results suggest that several SGI1 variants circulate in a few fixed forms through the population from which our data were derived. The methods presented could be applied to other types of phenotypic data, and represent a useful and generic mechanism of inferring the genetic population structure of organisms.
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Affiliation(s)
- M J Denwood
- Boyd Orr Centre for Population and Ecosystem Health, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G61 1QH, UK
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Hur J, Kim JH, Park JH, Lee YJ, Lee JH. Molecular and virulence characteristics of multi-drug resistant Salmonella Enteritidis strains isolated from poultry. Vet J 2010; 189:306-11. [PMID: 20822940 DOI: 10.1016/j.tvjl.2010.07.017] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Revised: 07/22/2010] [Accepted: 07/27/2010] [Indexed: 02/07/2023]
Abstract
Forty-six Salmonella enterica subspecies enterica serovar Enteritidis (S. Enteritidis) strains were isolated from chicken meat, faeces, and eggshells collected from hatcheries throughout Korea. The strains were examined for the presence of antimicrobial resistance and virulence genes. All 46 isolates were resistant to at least one of 21 antibiotics used in this study, 30 (65.2%) were resistant to three or more antimicrobials, and a single remarkable isolate was resistant to 15 antimicrobials. The isolates were primarily resistant to penicillins, sulfisoxazole, streptomycin, tetracycline and quinolones. The high rate of resistance in S. Enteritidis strains, sometimes to multiple drugs, may complicate future options for treating human infections. Nineteen of the 21 penicillin resistant isolates carried the bla(TEM) gene, while one strain, resistant both to penicillins and ceftriaxone, carried the bla(CTX-M) gene. Thirty-seven of the 45 sulfisoxazole resistant isolates carried sul2, and 23/24 streptomycin resistant isolates carried both strA and strB. All 10 tetracycline resistant isolates carried the tet(A) gene. Most isolates harboured both SPI-1 and SPI-2-associated genes, and the spv operon, which are known to be associated with human infections. The presence of these genes suggests that these strains could give rise to public health problems if dispersed in the general human population.
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Affiliation(s)
- Jin Hur
- Veterinary Public Health, College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju 561-756, Republic of Korea
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45
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Pignato S, Coniglio MA, Faro G, Lefevre M, Weill FX, Giammanco G. Molecular Epidemiology of Ampicillin Resistance inSalmonellaspp. andEscherichia colifrom Wastewater and Clinical Specimens. Foodborne Pathog Dis 2010; 7:945-51. [DOI: 10.1089/fpd.2009.0504] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Sarina Pignato
- GF Ingrassia—Igiene e Sanità Pubblica, University of Catania, Catania, Italy
| | - Maria Anna Coniglio
- GF Ingrassia—Igiene e Sanità Pubblica, University of Catania, Catania, Italy
| | - Giuseppina Faro
- GF Ingrassia—Igiene e Sanità Pubblica, University of Catania, Catania, Italy
| | - Martine Lefevre
- Laboratoire des Bactéries Pathogènes Entériques, Centre National de Référence des Salmonella, Institut Pasteur, Paris, France
| | - François-Xavier Weill
- Laboratoire des Bactéries Pathogènes Entériques, Centre National de Référence des Salmonella, Institut Pasteur, Paris, France
| | - Giuseppe Giammanco
- GF Ingrassia—Igiene e Sanità Pubblica, University of Catania, Catania, Italy
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IncI1 plasmid carrying extended-spectrum-beta-lactamase gene blaCTX-M-1 in Salmonella enterica isolates from poultry and humans in France, 2003 to 2008. Antimicrob Agents Chemother 2010; 54:4484-6. [PMID: 20643895 DOI: 10.1128/aac.00460-10] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We report the dissemination of a conjugative IncI1 plasmid carrying bla(CTX-M-1), conferring resistance to extended-spectrum cephalosporins, in Salmonella enterica isolates from poultry and humans in France from 2003 to 2008. By IncI1 plasmid subtyping, this plasmid was shown to be genetically related to that found in Escherichia coli isolates from healthy poultry in France.
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47
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Targant H, Ponsin C, Brunet C, Doublet B, Cloeckaert A, Madec JY, Meunier D. Characterization of resistance genes in multidrug-resistant Salmonella enterica serotype Typhimurium isolated from diseased cattle in France (2002 to 2007). Foodborne Pathog Dis 2010; 7:419-25. [PMID: 20092404 DOI: 10.1089/fpd.2009.0414] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We report here the results of the survey of antimicrobial resistance in 148 serotype Typhimurium strains isolated from cattle in France from 2002 to 2007 and displaying more than two antimicrobial resistances. Salmonella enterica serotype Typhimurium of definitive phage type 104 strains that are commonly resistant to ampicillin-amoxicillin, chloramphenicol-florfenicol, streptomycin-spectinomycin, sulfonamides, and tetracycline (ACSSuT phenotype) harbored resistance genes clustered on a complex class 1 integron In104 of the Salmonella genomic island 1 (SGI1). In our isolates, the most common antimicrobial resistance pattern was ACSSuT (77.7%) or ACSSuT combined to additional resistances. SGI1 was detected in 143 strains and constituted thus the main structure involved in resistance to antimicrobials in these strains. In spite of the high recombination potential of In104, SGI1 variability was quite limited among these strains since only two SGI1 variants, SGI1-B and SGI1-C, were identified. One hundred and thirty-eight out of the 143 SGI1-positive isolates belonged to the DT104 complex. Pulsed-field gel electrophoresis profile A was the most prevalent in 135 SGI1-positive isolates, confirming the diffusion of the DT104 clone. However, changes in phages susceptibility have occurred in three serotype Typhimurium strains of phage type DT12, as they displayed the same pulsed-field gel electrophoresis profile as the SGI1-positive serotype Typhimurium DT104. No variant harboring an additional resistance gene was identified, but the risk of recombination between SGI1 and any other mobile structure carrying other antimicrobial resistance genes is still an issue in serotype Typhimurium.
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Affiliation(s)
- Hayette Targant
- AFSSA, Bacterial Antimicrobial Resistance and Virulence Unit, Lyon, France
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48
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Li J, Ma Y, Hu C, Jin S, Zhang Q, Ding H, Ran L, Cui S. Dissemination of cefotaxime-M-producing Escherichia coli isolates in poultry farms, but not swine farms, in China. Foodborne Pathog Dis 2010; 7:1387-92. [PMID: 20583961 DOI: 10.1089/fpd.2010.0581] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The objective of this study was to investigate the distribution of extended spectrum β-lactamase (ESBL)-producing Escherichia coli isolates in swine and poultry farms in China. Rectal or cloaca swabs of swine and chicken were collected from four province-level regions of China, and E. coli isolates were recovered and tested for antimicrobial susceptibility. The isolates producing ESBLs were further characterized by pulsed-field gel electrophoresis (PFGE) and sequence analysis of genes encoding β -lactamases and class I integrons. In total, 156 and 224 E. coli isolates were recovered from rectal swabs of four swine farms and cloaca swabs of six chicken farms, respectively. Prevalence of resistant isolates was higher in chicken than in swine. Fifty-six isolates producing ESBLs were identified from chicken samples, but no ESBL-producing isolates were identified from swine samples. Of 56 ESBL-producing isolates, 54 isolates contained cefotaxime (CTX)-M type β-lactamases, including bla(CTX-M-14) (n = 24), bla(CTX-M-65) (n = 13), bla(CTX-M-55) (n = 10), bla(CTX-M-24) (n = 3), bla(CTX-M-3) (n = 2), bla(CTX-M-15) (n = 1), and bla(CTX-M-64) (n = 1). Among 54 E. coli isolates containing bla(CTX-M), 11 PFGE clusters and 42 PFGE patterns were identified. More importantly, more than three-fourth of the ESBL-producing isolates in chicken were also resistant to ciprofloxacin. Our data demonstrated that chicken had become an important reservoir of bla(CTX-M) in China. Detailed molecular comparison of plasmids and genomes of isolates from various sources will help to better define the transmission dynamics of bla(CTX-M) between humans and food-producing animals.
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Affiliation(s)
- Jingyun Li
- National Center for Surveillance of Antimicrobial Resistance, The State Food and Drug Administration, Chongwen District, Beijing, China
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Evidence for a second genomic island conferring multidrug resistance in a clonal group of strains of Salmonella enterica serovar Typhimurium and its monophasic variant circulating in Italy, Denmark, and the United Kingdom. J Clin Microbiol 2010; 48:2103-9. [PMID: 20410351 DOI: 10.1128/jcm.01371-09] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
During the 2000s, a new clonal group with resistances to ampicillin, streptomycin, sulfonamides, and tetracycline (ASSuT) emerged in Italy among strains of Salmonella enterica serovar Typhimurium and its monophasic variant, Salmonella enterica subspecies enterica serovar 4,[5],12:i:-. The PulseNet Europe database allowed us to identify ASSuT strains of both S. Typhimurium and its monophasic variant, isolated in Denmark and the United Kingdom, with the same or very closely related pulsed-field gel electrophoresis (PFGE) patterns as the Italian strains, suggesting that the ASSuT clonal group is circulating in different European countries. With the aim of analyzing the molecular basis of antibiotic resistance, resistance genes were identified and their localization was investigated in 66 ASSuT strains and, as controls, in 11 strains with different resistance patterns and PFGE profiles, belonging both to S. Typhimurium and to its monophasic variant, isolated from humans in Italy, Denmark, and the United Kingdom. All the ASSuT strains were positive for the following resistance genes: bla(TEM-1), strA-strB, sul2, and tet(B). A localization experiment demonstrated that the ASSuT resistance genes are chromosomally located. This study confirms that a multidrug-resistant clonal group, ASSuT, of S. Typhimurium and its monophasic variant has emerged and is circulating in Italy, Denmark, and the United Kingdom. Moreover, the results of this work demonstrate that the multidrug resistance in this clonal group of Salmonella strains is conferred by a new genomic island.
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Kohanski MA, DePristo MA, Collins JJ. Sublethal antibiotic treatment leads to multidrug resistance via radical-induced mutagenesis. Mol Cell 2010; 37:311-20. [PMID: 20159551 DOI: 10.1016/j.molcel.2010.01.003] [Citation(s) in RCA: 628] [Impact Index Per Article: 44.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2009] [Revised: 10/18/2009] [Accepted: 11/12/2009] [Indexed: 01/27/2023]
Abstract
Antibiotic resistance arises through mechanisms such as selection of naturally occurring resistant mutants and horizontal gene transfer. Recently, oxidative stress has been implicated as one of the mechanisms whereby bactericidal antibiotics kill bacteria. Here, we show that sublethal levels of bactericidal antibiotics induce mutagenesis, resulting in heterogeneous increases in the minimum inhibitory concentration for a range of antibiotics, irrespective of the drug target. This increase in mutagenesis correlates with an increase in ROS and is prevented by the ROS scavenger thiourea and by anaerobic conditions, indicating that sublethal concentrations of antibiotics induce mutagenesis by stimulating the production of ROS. We demonstrate that these effects can lead to mutant strains that are sensitive to the applied antibiotic but resistant to other antibiotics. This work establishes a radical-based molecular mechanism whereby sublethal levels of antibiotics can lead to multidrug resistance, which has important implications for the widespread use and misuse of antibiotics.
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Affiliation(s)
- Michael A Kohanski
- Howard Hughes Medical Institute, Boston University, Boston, MA 02215, USA
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