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Cao C, Niu Q, Chen J, Xu X, Sheng H, Cui S, Liu B, Yang B. Epidemiology and Characterization of CTX-M-55-Type Extended-Spectrum β-Lactamase-Producing Salmonella enterica Serovar Enteritidis Isolated from Patients in Shanghai, China. Microorganisms 2021; 9:microorganisms9020260. [PMID: 33513880 PMCID: PMC7912593 DOI: 10.3390/microorganisms9020260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/21/2021] [Accepted: 01/22/2021] [Indexed: 11/16/2022] Open
Abstract
The emergence of extended-spectrum β-lactamase-producing Salmonella enterica serovar Enteritidis (ESBL-SE) in humans and foods has gained global attention. In particular, CTX-M-type ESBL-SE are increasingly being detected from various sample types. The aim of this study was to comprehensively analyze the epidemiology and characteristics of blaCTX-M-55-carrying ESBL-SE isolates of clinical origin in Shanghai, China. A total of 292 S. Enteritidis isolates were recovered from the feces and blood of outpatients and inpatients between 2006 and 2014. Overall, there was a high frequency of cefotaxime-resistant isolates (97.3%), which was significantly higher (p < 0.01) than that of isolates resistant to the other tested antibiotics. All S. Enteritidis isolates exhibited resistance to ≥1 antibiotic, and 98.0% were multidrug resistant. A total of 233 isolates were identified as ESBL-SE, 166 of which were CTX-M type. Six subtypes of CTX-M-encoding genes were detected, among which blaCTX-M-55 (91.6%, 152/166) was the most prevalent genotype. There was high genetic similarity among blaCTX-M-55-positive ESBL-SE. The blaCTX-M-55 gene in the ESBL-SE donor strains could be easily transferred into Enterobacteriaceae recipient strains. This study highlights that CTX-M-55 should be considered an important surveillance target in Shanghai, China. Cephalosporins, especially cefotaxime, must be used with caution in empirical treatment for Salmonella infections.
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Affiliation(s)
- Chenyang Cao
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (C.C.); (Q.N.); (H.S.); (B.L.)
| | - Qinya Niu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (C.C.); (Q.N.); (H.S.); (B.L.)
| | - Jia Chen
- College of Chemical Technology, Shijiazhuang University, Shijiazhuang 050035, China;
| | - Xuebin Xu
- Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China;
| | - Huanjing Sheng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (C.C.); (Q.N.); (H.S.); (B.L.)
| | - Shenghui Cui
- National Institutes for Food and Drug Control, Beijing 100050, China;
| | - Bin Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (C.C.); (Q.N.); (H.S.); (B.L.)
| | - Baowei Yang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; (C.C.); (Q.N.); (H.S.); (B.L.)
- Correspondence: ; Tel./Fax: +86-29-87092486
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Shang K, Wei B, Cha SY, Zhang JF, Park JY, Lee YJ, Jang HK, Kang M. The Occurrence of Antimicrobial-Resistant Salmonella enterica in Hatcheries and Dissemination in an Integrated Broiler Chicken Operation in Korea. Animals (Basel) 2021; 11:E154. [PMID: 33440890 PMCID: PMC7827806 DOI: 10.3390/ani11010154] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/19/2020] [Accepted: 01/07/2021] [Indexed: 11/16/2022] Open
Abstract
Positive identification rates of Salmonella enterica in hatcheries and upstream breeder farms were 16.4% (36/220) and 3.0% (6/200), respectively. Among the Salmonella serovars identified in the hatcheries, S. enterica ser. Albany (17/36, 47.2%) was the most prevalent, followed by the serovars S. enterica ser. Montevideo (11/36, 30.6%) and S. enterica ser. Senftenberg (5/36, 13.9%), which were also predominant. Thirty-six isolates showed resistance to at least one antimicrobial tested, of which 52.8% (n = 19) were multidrug resistant (MDR). Thirty-three isolates (enrofloxacin, MIC ≥ 0.25) showed point mutations in the gyrA and parC genes. One isolate, S. enterica ser. Virchow, carrying the blaCTX-M-15 gene from the breeder farm was ceftiofur resistant. Pulsed-field gel electrophoresis (PFGE) showed that 52.0% S. enterica ser. Montevideo and 29.6% S. enterica ser. Albany isolates sourced from the downstream of hatcheries along the broiler chicken supply chain carried the same PFGE types as those of the hatcheries. Thus, the hatcheries showed a high prevalence of Salmonella isolates with high antimicrobial resistance and no susceptible isolate. The AMR isolates from hatcheries originating from breeder farms could disseminate to the final retail market along the broiler chicken supply chain. The emergence of AMR Salmonella in hatcheries may be due to the horizontal spread of resistant isolates. Therefore, Salmonella control in hatcheries, particularly its horizontal transmission, is important.
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Grants
- 119059-2 Korea Institute of Planning and Evaluation for Technology in Food, Agriculture and Forestry(IPET) through Animal Disease Management Technology Development Program, funded by Ministry of Agriculture, Food and Rural Affairs(MAFRA)
- 716002-7 Korea Institute of Planning and Evaluation for Technology in Food, Agriculture and Forestry(IPET) through Agriculture, Food and Rural Affairs Convergence Technologies Program for Educating Creative Global Leader, funded by Ministry of Agriculture, Food an
- 320005-4 Korea Institute of Planning and Evaluation for Technology in Food, Agriculture and Forestry(IPET) through Agriculture, Food and Rural Affairs Convergence Technologies Program for Educating Creative Global Leader, funded by Ministry of Agriculture, Food an
- 2017R1D1A1B03030883 Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education
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Affiliation(s)
- Ke Shang
- Department of Veterinary Infectious Diseases and Avian Diseases, College of Veterinary Medicine and Center for Poultry Diseases Control, Jeonbuk National University, Iksan 54596, Korea; (K.S.); (B.W.); (S.-Y.C.); (J.-F.Z.); (J.-Y.P.); (Y.-J.L.)
| | - Bai Wei
- Department of Veterinary Infectious Diseases and Avian Diseases, College of Veterinary Medicine and Center for Poultry Diseases Control, Jeonbuk National University, Iksan 54596, Korea; (K.S.); (B.W.); (S.-Y.C.); (J.-F.Z.); (J.-Y.P.); (Y.-J.L.)
| | - Se-Yeoun Cha
- Department of Veterinary Infectious Diseases and Avian Diseases, College of Veterinary Medicine and Center for Poultry Diseases Control, Jeonbuk National University, Iksan 54596, Korea; (K.S.); (B.W.); (S.-Y.C.); (J.-F.Z.); (J.-Y.P.); (Y.-J.L.)
| | - Jun-Feng Zhang
- Department of Veterinary Infectious Diseases and Avian Diseases, College of Veterinary Medicine and Center for Poultry Diseases Control, Jeonbuk National University, Iksan 54596, Korea; (K.S.); (B.W.); (S.-Y.C.); (J.-F.Z.); (J.-Y.P.); (Y.-J.L.)
| | - Jong-Yeol Park
- Department of Veterinary Infectious Diseases and Avian Diseases, College of Veterinary Medicine and Center for Poultry Diseases Control, Jeonbuk National University, Iksan 54596, Korea; (K.S.); (B.W.); (S.-Y.C.); (J.-F.Z.); (J.-Y.P.); (Y.-J.L.)
| | - Yea-Jin Lee
- Department of Veterinary Infectious Diseases and Avian Diseases, College of Veterinary Medicine and Center for Poultry Diseases Control, Jeonbuk National University, Iksan 54596, Korea; (K.S.); (B.W.); (S.-Y.C.); (J.-F.Z.); (J.-Y.P.); (Y.-J.L.)
| | - Hyung-Kwan Jang
- Department of Veterinary Infectious Diseases and Avian Diseases, College of Veterinary Medicine and Center for Poultry Diseases Control, Jeonbuk National University, Iksan 54596, Korea; (K.S.); (B.W.); (S.-Y.C.); (J.-F.Z.); (J.-Y.P.); (Y.-J.L.)
- Bio Disease Control (BIOD) Co., Ltd., Iksan 54596, Korea
| | - Min Kang
- Department of Veterinary Infectious Diseases and Avian Diseases, College of Veterinary Medicine and Center for Poultry Diseases Control, Jeonbuk National University, Iksan 54596, Korea; (K.S.); (B.W.); (S.-Y.C.); (J.-F.Z.); (J.-Y.P.); (Y.-J.L.)
- Bio Disease Control (BIOD) Co., Ltd., Iksan 54596, Korea
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Liu Y, Shen W, Sun Y, Lv N, Sun K, Hu L, Ye Y, Gao Y, Li J. Virulence-Related Gene Distribution Among Shigella Isolates in Anhui, China: The Association with Antimicrobial Resistance. Infect Drug Resist 2020; 13:3637-3647. [PMID: 33116683 PMCID: PMC7585282 DOI: 10.2147/idr.s274862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 09/26/2020] [Indexed: 12/27/2022] Open
Abstract
Objective The aim of this study was to investigate the antimicrobial resistance profiles and distribution of virulence-related genes (VRGs) among Shigella isolates in Anhui, China, and to identify the correlation between the VRGs and antimicrobial resistance. Materials and Methods A total of 525 non-duplicate Shigella isolates (449 S. flexneri, 68 S. sonnei, 3 S. boydii, and 5 S. dysenteriae) were collected in Anhui Province, China between September 2011 and September 2015. The antimicrobial resistance of the strains was determined by the agar dilution method according to CLSI guidelines. The presence of 16 VRGs, including ipaH, ipaA-D, ial, virB, virF, set, sen, icsA, icsB, sigA, sat, pic, and sepA, was evaluated using PCR amplification and sequencing. Results Shigella flexneri was the most abundant (85.5%), followed by S. sonnei (13.0%). The proportion of males with S. flexneri was higher than that of females (57% vs 43%; P<0.0001). The most common resistance pattern was the combination of ampicillin, nalidixic acid, and tetracycline for S. flexneri (90.2%) and S. sonnei (94.1%). Resistance to ciprofloxacin and levofloxacin was more common among S. flexneri than among S. sonnei (49.7% vs.19.1%, P<0.0001; 30.5% vs 10.3%, P=0.001, respectively). All the isolates were positive for the ipaH gene, while the set, sat, pic, and sepA genes were not detected among the S. sonnei isolates. Except for sigA and sen, resistance to chloramphenicol and ciprofloxacin was more common among VRG-positive S. flexneri than among VRG-negative S. flexneri (P<0.05). Furthermore, resistance to ceftriaxone and ceftazidime was more frequently detected among sat- and set-positive S. flexneri than among sat- and set-negative S. flexneri (P<0.05). However, gentamicin resistance was more prevalent among VRG-negative (ial, virF, set, sat, pic, and sepA) S. flexneri than among VRG-positive S. flexneri (P<0.05). Conclusion Shigella flexneri remains the predominant species in Anhui, China, and the resistance to fluoroquinolones was more widespread among S. flexneri than among S. sonnei. Shigella flexneri strains harboring specific VRGs were associated with antimicrobial resistance. To the best of our knowledge, this is the first report of the correlation between the VRGs and antimicrobial resistance in Anhui, China.
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Affiliation(s)
- Yanyan Liu
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China.,Anhui Center for Surveillance of Bacterial Resistance, Hefei, Anhui, People's Republic of China.,Institute of Bacterial Resistance, Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Weihua Shen
- Department of Special Clinic, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Yating Sun
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Na Lv
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Kaili Sun
- Department of Infectious Diseases, The Chaohu Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Lifen Hu
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Ying Ye
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China.,Anhui Center for Surveillance of Bacterial Resistance, Hefei, Anhui, People's Republic of China.,Institute of Bacterial Resistance, Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Yufeng Gao
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China.,Anhui Center for Surveillance of Bacterial Resistance, Hefei, Anhui, People's Republic of China.,Institute of Bacterial Resistance, Anhui Medical University, Hefei, Anhui, People's Republic of China
| | - Jiabin Li
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China.,Anhui Center for Surveillance of Bacterial Resistance, Hefei, Anhui, People's Republic of China.,Institute of Bacterial Resistance, Anhui Medical University, Hefei, Anhui, People's Republic of China.,Department of Infectious Diseases, The Chaohu Affiliated Hospital of Anhui Medical University, Hefei, Anhui, People's Republic of China
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4
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Zhang WX, Chen HY, Tu LH, Xi MF, Chen M, Zhang J. Fluoroquinolone Resistance Mechanisms in Shigella Isolates in Shanghai, China, Between 2010 and 2015. Microb Drug Resist 2018; 25:212-218. [PMID: 30307807 DOI: 10.1089/mdr.2018.0113] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES This study aimed to investigate the antimicrobial susceptibility of Shigella isolated in Shanghai, China and to determine the genetic basis of its resistance to fluoroquinolones. MATERIALS AND METHODS A total of 402 strains of Shigella, including 145 Shigella flexneri and 257 Shigella sonnei isolates, were analyzed. The Kirby-Bauer disk diffusion method was used to determine the susceptibility of the strains to 13 antimicrobials. Minimum inhibitory concentration of ciprofloxacin was determined by E-test. Mutations within the quinolone resistance-determining regions (QRDRs) of gyrA and parC and in the plasmid-mediated quinolone resistance (PMQR) genes, including qnrA, qnrB, qnrS, and aac (6')-Ib-cr, were detected by polymerase chain reaction. All the products were then sequenced. RESULTS Most of the Shigella isolates were found to be resistant to nalidixic acid (96.4%), streptomycin (96.4%), ampicillin (86.2%), tetracycline (79.8%), and sulfamethoxazole/trimethoprim (80.6%). S. flexneri isolates showed a significantly higher resistance to cefepime (33.6%), ciprofloxacin (54.2%), norfloxacin (34.1%), and levofloxacin (12.1%) compared with that observed for the S. sonnei strains (χ2 analysis, p < 0.05). Three mutations (Ser83, Asp87, and His211) in gyrA and one mutation (Ser80) in parC were detected. Of 257 S. sonnei isolates, 11.7% possessed gyrA mutations and 2% had parC mutations. Of 145 S. flexneri isolates, 98.6% possessed gyrA mutations and 97.9% had parC mutations. The plasmid-mediated resistance genes of qnrS and aac (6')-Ib-cr were detected among 17 strains (4.2%). CONCLUSIONS The mutation percentage within the QRDR of S. flexneri was as high as 98.6 in gyrA and 97.9 in parC. The significant abundance of mutations within QRDRs conferred high levels of fluoroquinolone resistance. Moreover, the PMQR genes, particularly qnrS, played an important role in the decreased susceptibility of Shigella to fluoroquinolones.
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Affiliation(s)
- Wen-Xia Zhang
- 1 Department of Clinical Laboratory, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai, China
| | - Hong-You Chen
- 2 Laboratory of Bacterial, Shanghai Center for Disease Control and Prevention , Shanghai, China
| | - Li-Hong Tu
- 2 Laboratory of Bacterial, Shanghai Center for Disease Control and Prevention , Shanghai, China
| | - Man-Fang Xi
- 2 Laboratory of Bacterial, Shanghai Center for Disease Control and Prevention , Shanghai, China
| | - Min Chen
- 2 Laboratory of Bacterial, Shanghai Center for Disease Control and Prevention , Shanghai, China
| | - Jue Zhang
- 1 Department of Clinical Laboratory, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine , Shanghai, China
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Xue C, Cai J, Kang H, Chen Y, Wang K, Qian H, Bao C, Li N, Guo Z, Zhang Z, Wang J, Ma P, Gu B. Two novel mutations in parE among Shigella flexneri isolated from Jiangsu Province of China, 2016. ANNALS OF TRANSLATIONAL MEDICINE 2018; 6:306. [PMID: 30211194 DOI: 10.21037/atm.2018.07.11] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Background The study was conducted to assess the resistance capacity of quinolone against Shigella flexneri, and to investigate the involved quinolone resistance mechanism. The data were collected from Jiangsu Province, China in 2016. Methods The number of 81 S. flexneri was obtained from 12 cities in Jiangsu Province of China during 2016. Slide agglutination was taken for serotyping, and susceptibility test was identified by the disc diffusion method. PCR aimed to amplify the quinolone resistance-determining region (QRDR) genes and screen for plasmid-mediated quinolone resistance (PMQR) determinants. Chromosomal mutation was confirmed by sequencing and Blast comparison. Results 2a was the commonest serotype, accounting for 40.7% (33/81) of the 81 S. flexneri. 70.4% (57/81) isolates expressed resistance against nalidixic acid, and the resistance against ciprofloxacin even reached up to a high proportion of 58.0% (47/81). A total of 8 point mutations were identified, including 2 novel mutations discovered in parE (Ser458Leu and Gly408Asp). The common mutation Ser83Leu in gyrA was still the most prevalent here with a percentage of 70.4% (57/81), followed by the approximate mutation of 69.1% (56/81) in parC (Ser80Ile) and His211Tyr in gyrA. Meanwhile, 35.8% (29/81) isolates were confirmed with mutation of Gln517Arg in gyrB. In addition, qnrS positive isolates occupied a proportion of 7.4% (6/81), but only 1 strain was observed with aac(6')-Ib-cr. All PMQR positive isolates were resistant to nalidixic acid. However, 5 of them didn't stay susceptible to ciprofloxacin any more. Conclusions This is the first time that a study researches the occurrence of mutations in parE among S. flexneri, Ser458Leu and Gly408Asp included. The study indicates that the high resistance to fluoroquinolone remains a serious problem in Jiangsu, China. Thus, the prevention and control of current infection urge for a comprehensive and systematic surveillance based on persistent surveys.
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Affiliation(s)
- Cun Xue
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Jinchi Cai
- School of Medical Imaging, Xuzhou Medical University, Xuzhou 221004, China
| | - Haiquan Kang
- Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - Ying Chen
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Kaixuan Wang
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Huimin Qian
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Changjun Bao
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Na Li
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Zhen Guo
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Zheng Zhang
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Jing Wang
- School of Foreign Languages, Shaanxi Normal University, Xi'an 710062, China
| | - Ping Ma
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China.,Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - Bing Gu
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China.,Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
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Zhou Y, Zhang J, Wang S, Xu W, Liang W, Yan M, Wang D, Diao B, Pang B, Lu X, Fan F, Li J, Lou J, Zhang L, Wang R, Cui X, Zhao M, Wu R, Cai H, Du X, Cui Z, Gu W, Yang R, Kan B. Bacterial pathogen spectrum of acute diarrheal outpatients in an urbanized rural district in Southwest China. Int J Infect Dis 2018. [PMID: 29518497 DOI: 10.1016/j.ijid.2018.02.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
OBJECTIVES To conduct a one-year pathogen surveillance of acute diarrheal disease based on outpatient clinics in township hospitals in rural Hongta District of Yunnan Province, China. METHODS Fecal specimens of acute diarrhea cases and relevant epidemiological information were collected. Salmonella, Shigella, Vibrio, Aeromonas, Plesiomonas shigelloides and diarrheogenic Escherichia coli (DEC) were examined. RESULTS Among the 797 stool specimens sampled, 198 samples (24.8%) were positive in pathogen isolation, and 223 strains were isolated. The order of isolation rates from high to low were DEC, Aeromonas, P. shigelloides, Salmonella, Shigella and Vibrio. The overall positive rate in middle school students and preschool children was relatively high; while the overall positive rate of less than 1-year-old infants and above 55 years olds was relatively low. The isolates were analyzed by pulsed-field gel electrophoresis (PFGE). Some cases had the same or very close onset time, and the isolates had similar PFGE patterns, suggesting a possible outbreak once occurred but was not detected by the current infectious disease reporting system. CONCLUSIONS Pathogen infection and transmission in rapidly urbanized rural areas is a serious issue. There is a great need for a more sensitive and accurate mode of monitoring, reporting and outbreak identification of diarrheal disease.
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Affiliation(s)
- Yongming Zhou
- Yunnan Center for Disease Control and Prevention, Yunnan 650022, China
| | - Jingyun Zhang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Shukun Wang
- Yuxi Center for Disease Control and Prevention, Yunnan 653100, China
| | - Wen Xu
- Yunnan Center for Disease Control and Prevention, Yunnan 650022, China
| | - Weili Liang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, China
| | - Meiying Yan
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Duochun Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Baowei Diao
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Bo Pang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Xin Lu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Fenxia Fan
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Jie Li
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Jing Lou
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Li Zhang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Ruibai Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Xiaoying Cui
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Meng Zhao
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Rui Wu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Hongyan Cai
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Xiaoli Du
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Zhigang Cui
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Wenpeng Gu
- Yunnan Center for Disease Control and Prevention, Yunnan 650022, China
| | - Rusong Yang
- Yunnan Center for Disease Control and Prevention, Yunnan 650022, China
| | - Biao Kan
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou 310003, China.
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Adaptations in the physiological heterogeneity and viability of Shigella dysenteriae, Shigella flexneri and Salmonella typhimurium, after exposure to simulated gastric acid fluid. Microb Pathog 2017; 113:378-384. [DOI: 10.1016/j.micpath.2017.11.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 11/06/2017] [Accepted: 11/09/2017] [Indexed: 01/24/2023]
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8
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Gu B, Qin TT, Fan WT, Bi RR, Chen Y, Li Y, Ma P. Novel mutations in gyrA and parC among Shigella sonnei strains from Jiangsu Province of China, 2002-2011. Int J Infect Dis 2017; 59:44-49. [PMID: 28392317 DOI: 10.1016/j.ijid.2017.03.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 03/21/2017] [Accepted: 03/31/2017] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND To investigate fluoroquinolone resistance and associated mechanisms of Shigella sonnei isolates in Jiangsu Province of China between 2002 and 2011. METHODS All 337 unduplicated S. sonnei isolates were collected from hospitals in Jiangsu Province from January 2002 to December 2011. Fluoroquinolone susceptibility was characterized by Kirby-Bauer disk diffusion method, and direct nucleotide sequencing of genes of the quinolone resistance determining regions were conducted. Also, the transferable quinolone resistance determinants, including qnrA, qnrB, qnrC, qnrD, qnrS, aac-(6')-Ib-cr and qepA were amplified by PCR. RESULTS Among 950 Shigella isolates, 337 (35.5%) were identified as S. sonnei, of which 76.6% displayed nalidixic acid resistance and norfloxacin-resistant isolates appeared in 2005-2009, with an average resistance rate of 21.8%. Commonly reported point mutations of Ser83Leu and Asp87Asn/Gly in gyrA and Ser80Ile in parC were detected, with mutation rates of 78.0%, 9.5% and 30.3%, respectively, while no alteration in gyrB or parE were detected. Besides, His211Tyr mutation in gyrA was first reported in a S. sonnei strain in 2009 and two novel mutations in parC were found, of which Met86Trp occurred in another strain in 2009 and Ser129Pro appeared every year except 2011 (28.8%). Plasmid-mediated quinolone resistance determinants were found in 23 isolates and 19 of these isolates were resistant to both nalidixic acid and norfloxacin. qnrB, qnrS, aac-(6')-Ib-cr and qepA were detected in 1, 7, 14 and 2 S. sonnei strains, relatively, and the most abundant PMQR gene found in this work was aac-(6')-Ib-cr (4.2%). INTERPRETATION & CONCLUSIONS S. sonnei became increasingly important as fluoroquinolone-resistant isolates emerged, and further detection on the resistant genes would be useful in the treatment and control of this infection.
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Affiliation(s)
- Bing Gu
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China; Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - Ting-Ting Qin
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Wen-Ting Fan
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Ru-Ru Bi
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Ying Chen
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Ying Li
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China
| | - Ping Ma
- Medical Technology School, Xuzhou Medical University, Xuzhou 221004, China; Department of Laboratory Medicine, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China.
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9
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Prevalence and molecular characterization of Salmonella enterica isolates throughout an integrated broiler supply chain in China. Epidemiol Infect 2016; 144:2989-2999. [PMID: 27443305 DOI: 10.1017/s0950268816001515] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
A total of 1145 samples were collected from chicken breeder farms, hatcheries, broiler farms, a slaughterhouse and retail refrigerated chicken stores in an integrated broiler supply chain in Guangdong Province, China, in 2013. One-hundred and two Salmonella enterica strains were isolated and subjected to serotyping, antimicrobial susceptibility testing, virulence profile determination and molecular subtyping by pulsed field gel electrophoresis (PFGE). The contamination rates in samples from breeder farms, hatcheries, broiler farms, the slaughterhouse and retail stores were 1·46%, 4·31%, 7·00%, 62·86% and 54·67%, respectively. The isolated strains of S. enterica belonged to 10 serotypes; most of them were S. Weltevreden (46·08%, 47/102) and S. Agona (18·63%, 19/102). Isolates were frequently resistant to streptomycin (38·2%), tetracycline (36·3%), sulfisoxazole (35·3%) and gentamicin (34·3%); 31·4% of isolates were multidrug resistant. The isolates were screened for 10 virulence factors. The Salmonella pathogenicity island genes avrA, ssaQ, mgtC, siiD, and sopB and the fimbrial gene bcfC were present in 100% of the strains. PFGE genotyping of the 102 S. enterica isolates yielded 24 PFGE types at an 85% similarity threshold. The PFGE patterns show that the genotypes of S. enterica in the production chain are very diverse, but some strains have 100% similarity in different parts of the production chain, which indicates that some S. enterica persist throughout the broiler supply chain.
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10
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Zhang J, Kuang D, Wang F, Meng J, Jin H, Yang X, Liao M, Klena JD, Wu S, Zhang Y, Xu X. Turtles as a Possible Reservoir of Nontyphoidal Salmonella in Shanghai, China. Foodborne Pathog Dis 2016; 13:428-33. [PMID: 27267492 DOI: 10.1089/fpd.2015.2107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Terrapins and turtles are known to transmit Salmonella to humans. However, little was known about the occurrence of this pathogen in soft-shelled terrapin that is a popular delicacy in Chinese and other East Asian cuisines. We isolated and characterized 82 (24.4%) isolates of Salmonella from 336 fecal samples of soft-shelled terrapins (51 of 172; 29.7%) and pet turtles (31 of 164; 18.9%) in Shanghai. Salmonella Thompson was the most common serotype (17.1%) among others. Many isolates (84.1%) were resistant to multiple antimicrobials (≥3). Molecular analysis of Salmonella Thompson and Salmonella Typhimurium using pulsed-field gel electrophoresis unveiled a close genetic relationship between several human and terrapin isolates. Our results highlight the risk associated with the handling and consumption of turtles and their role in the spread of Salmonella in the human salmonellosis.
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Affiliation(s)
- Jianmin Zhang
- 1 Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University , Guangzhou, China
| | - Dai Kuang
- 2 School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai, China
| | - Fei Wang
- 3 Department of Food Science and Nutrition, University of Maryland , College Park, Maryland
| | - Jianghong Meng
- 2 School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai, China .,3 Department of Food Science and Nutrition, University of Maryland , College Park, Maryland
| | - Huiming Jin
- 4 Shanghai Municipal Center for Disease Control and Prevention , Shanghai, China
| | - Xiaowei Yang
- 2 School of Agriculture and Biology, Shanghai Jiao Tong University , Shanghai, China
| | - Ming Liao
- 1 Key Laboratory of Zoonosis Prevention and Control of Guangdong Province, College of Veterinary Medicine, South China Agricultural University , Guangzhou, China
| | - John D Klena
- 5 Centers for Disease Control and Prevention , Atlanta, Georgia
| | - Shuyu Wu
- 5 Centers for Disease Control and Prevention , Atlanta, Georgia
| | - Yongbiao Zhang
- 6 Department of Emergency, The Third Affiliated Hospital of Sun Yat-Sen University Guangzhou , China
| | - Xuebin Xu
- 4 Shanghai Municipal Center for Disease Control and Prevention , Shanghai, China
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11
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Rocha-Castro J, Kronbauer K, Dallé J, Jimenez MF, Riche CW, Santiago JA, Antonello VS. Characteristics of bacterial acute diarrhea among women. Int J Gynaecol Obstet 2015; 132:302-4. [PMID: 26674319 DOI: 10.1016/j.ijgo.2015.07.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 07/14/2015] [Accepted: 11/17/2015] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To describe the clinical and microbiological characteristics of women presenting with acute gastroenteritis due to infection with Salmonella spp. or Shigella spp. METHODS A cross-sectional retrospective study was conducted using data for patients with specimens positive for Shigella spp. and Salmonella spp. attending two major women's hospitals in Porto Alegre, Brazil, between January 2003 and July 2014. Women were included if they had symptoms compatible with bacterial acute diarrhea. Isolates were evaluated to determine antimicrobial susceptibility and patient clinical profile. RESULTS Among 45 eligible patients, Salmonella spp. was identified in 32 (71%) and Shigella spp. in 13 (29%). The highest antimicrobial sensitivity rates were observed for ciprofloxacin and ceftriaxone (n=44, 98% for both) whereas the greatest resistance rate was seen for ampicillin (n=20, 44%). Seven (16%) of the women were pregnant. CONCLUSION Ciprofloxacin, ceftriaxone, and sulfamethoxazole/trimethoprim are suitable choices for the treatment of bacterial acute diarrhea. However, the maternal and fetal safety profile of prescribed medications should be considered when treating pregnant patients.
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Affiliation(s)
- Juliane Rocha-Castro
- Department of Gynecology and Obstetrics, Hospital Fêmina, Porto Alegre, Brazil; Post-Graduate Program in Pathology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Karoline Kronbauer
- Department of Prevention and Infection Control, Hospital Fêmina, Porto Alegre, Brazil
| | - Jessica Dallé
- Department of Prevention and Infection Control, Hospital Fêmina, Porto Alegre, Brazil
| | - Mirela F Jimenez
- Department of Gynecology and Obstetrics, Hospital Fêmina, Porto Alegre, Brazil; Post-Graduate Program in Pathology, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil; Department of Gynecology and Obstetrics, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | - Cezar W Riche
- Department of Prevention and Infection Control, Hospital Nossa Senhora da Conceição, Porto Alegre, Brazil
| | - Jorge A Santiago
- Department of Microbiology, Hospital Nossa Senhora da Conceição, Porto Alegre, Brazil
| | - Vicente S Antonello
- Department of Prevention and Infection Control, Hospital Fêmina, Porto Alegre, Brazil.
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