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Prevalence, serotypes, and antimicrobial resistance of Salmonella isolates from patients with diarrhea in Shenzhen, China
Salmonella is one of the main causative agents of diarrhea which results in substantial disease burden. To determine the prevalence, serotype distribution, and antimicrobial resistance profiles of clinical Salmonella isolates in Shenzhen, a 6-year surveillance study was conducted. A total of 297 (5....
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Published in: | BMC microbiology 2020-07, Vol.20 (1), p.197-197, Article 197 |
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description | Salmonella is one of the main causative agents of diarrhea which results in substantial disease burden. To determine the prevalence, serotype distribution, and antimicrobial resistance profiles of clinical Salmonella isolates in Shenzhen, a 6-year surveillance study was conducted.
A total of 297 (5.7%) Salmonella strains were isolated from stool samples from 5239 patients. Among the 42 serotypes identified, serotype Typhimurium was the most common one which represented 39.7% of the isolates (118), followed by serotype Enteritidis (71, 23.9%), London (12, 4.0%), 4, 5, 12: i: - (11, 3.7%), and Senftenberg (8, 2.7%). A high frequency of resistance was found in ampicillin (70.6%), piperacillin (64.5%), tetracycline (63.5%), and streptomycin (54.3%). Resistance to ampicillin and tetracycline was observed in 95.3% of S. Typhimurium isolates; and nalidixic acid in 93.1% of S. Enteritidis isolates. Resistance to 5 or more antimicrobial agents was found in 78.8% of S. Typhimurium and 69.0% of S. Enteritidis isolates. A decreased susceptibility to ciprofloxacin and levofloxacin was associated with amino acid alteration in gyrA gene. Point mutations without amino acid changes were seen in gyrB, parC, and parE genes.
A broad range of serotypes are responsible for Salmonellosis in Shenzhen, with Enteritidis and Typhimurium being the most common serotypes. The high level of antibiotic resistance is of public health significance and ongoing monitoring combined with rational use of antibiotics are recommended. Point mutations in gyrA gene might play an important role in the resistance to fluoroquinolones. |
doi_str_mv | 10.1186/s12866-020-01886-5 |
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A total of 297 (5.7%) Salmonella strains were isolated from stool samples from 5239 patients. Among the 42 serotypes identified, serotype Typhimurium was the most common one which represented 39.7% of the isolates (118), followed by serotype Enteritidis (71, 23.9%), London (12, 4.0%), 4, 5, 12: i: - (11, 3.7%), and Senftenberg (8, 2.7%). A high frequency of resistance was found in ampicillin (70.6%), piperacillin (64.5%), tetracycline (63.5%), and streptomycin (54.3%). Resistance to ampicillin and tetracycline was observed in 95.3% of S. Typhimurium isolates; and nalidixic acid in 93.1% of S. Enteritidis isolates. Resistance to 5 or more antimicrobial agents was found in 78.8% of S. Typhimurium and 69.0% of S. Enteritidis isolates. A decreased susceptibility to ciprofloxacin and levofloxacin was associated with amino acid alteration in gyrA gene. Point mutations without amino acid changes were seen in gyrB, parC, and parE genes.
A broad range of serotypes are responsible for Salmonellosis in Shenzhen, with Enteritidis and Typhimurium being the most common serotypes. The high level of antibiotic resistance is of public health significance and ongoing monitoring combined with rational use of antibiotics are recommended. Point mutations in gyrA gene might play an important role in the resistance to fluoroquinolones.</description><identifier>ISSN: 1471-2180</identifier><identifier>EISSN: 1471-2180</identifier><identifier>DOI: 10.1186/s12866-020-01886-5</identifier><identifier>PMID: 32631309</identifier><language>eng</language><publisher>England: BioMed Central Ltd</publisher><subject>Age groups ; Amino acid sequence ; Amino acids ; Ampicillin ; Antibiotic resistance ; Antibiotics ; Antimicrobial agents ; Antimicrobial resistance ; Ciprofloxacin ; Contamination ; Diarrhea ; DNA topoisomerase ; DNA topoisomerase IV ; Drug resistance ; Epidemics ; Fluoroquinolones ; Food contamination & poisoning ; Gene mutation ; Infections ; Levofloxacin ; Microbial drug resistance ; Mutation ; Nalidixic acid ; Piperacillin ; Prevalence ; Public health ; Salmonella ; Salmonella food poisoning ; Salmonellosis ; Serotype ; Serotypes ; Streptomycin ; Surveillance ; Tetracyclines</subject><ispartof>BMC microbiology, 2020-07, Vol.20 (1), p.197-197, Article 197</ispartof><rights>COPYRIGHT 2020 BioMed Central Ltd.</rights><rights>2020. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>The Author(s) 2020</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c597t-904c74b4b7050c2c9eb49e99e1a927f0a442fd428c1588e2479c972a5622161c3</citedby><cites>FETCH-LOGICAL-c597t-904c74b4b7050c2c9eb49e99e1a927f0a442fd428c1588e2479c972a5622161c3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7339465/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2424716796?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,885,25753,27924,27925,37012,37013,44590,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32631309$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Shen, Hongwei</creatorcontrib><creatorcontrib>Chen, Haochuan</creatorcontrib><creatorcontrib>Ou, Yongxuan</creatorcontrib><creatorcontrib>Huang, Tingting</creatorcontrib><creatorcontrib>Chen, Siping</creatorcontrib><creatorcontrib>Zhou, Lintao</creatorcontrib><creatorcontrib>Zhang, Jinjin</creatorcontrib><creatorcontrib>Hu, Qinghua</creatorcontrib><creatorcontrib>Zhou, Yiwen</creatorcontrib><creatorcontrib>Ma, Wen</creatorcontrib><title>Prevalence, serotypes, and antimicrobial resistance of Salmonella isolates from patients with diarrhea in Shenzhen, China</title><title>BMC microbiology</title><addtitle>BMC Microbiol</addtitle><description>Salmonella is one of the main causative agents of diarrhea which results in substantial disease burden. To determine the prevalence, serotype distribution, and antimicrobial resistance profiles of clinical Salmonella isolates in Shenzhen, a 6-year surveillance study was conducted.
A total of 297 (5.7%) Salmonella strains were isolated from stool samples from 5239 patients. Among the 42 serotypes identified, serotype Typhimurium was the most common one which represented 39.7% of the isolates (118), followed by serotype Enteritidis (71, 23.9%), London (12, 4.0%), 4, 5, 12: i: - (11, 3.7%), and Senftenberg (8, 2.7%). A high frequency of resistance was found in ampicillin (70.6%), piperacillin (64.5%), tetracycline (63.5%), and streptomycin (54.3%). Resistance to ampicillin and tetracycline was observed in 95.3% of S. Typhimurium isolates; and nalidixic acid in 93.1% of S. Enteritidis isolates. Resistance to 5 or more antimicrobial agents was found in 78.8% of S. Typhimurium and 69.0% of S. Enteritidis isolates. A decreased susceptibility to ciprofloxacin and levofloxacin was associated with amino acid alteration in gyrA gene. Point mutations without amino acid changes were seen in gyrB, parC, and parE genes.
A broad range of serotypes are responsible for Salmonellosis in Shenzhen, with Enteritidis and Typhimurium being the most common serotypes. The high level of antibiotic resistance is of public health significance and ongoing monitoring combined with rational use of antibiotics are recommended. Point mutations in gyrA gene might play an important role in the resistance to fluoroquinolones.</description><subject>Age groups</subject><subject>Amino acid sequence</subject><subject>Amino acids</subject><subject>Ampicillin</subject><subject>Antibiotic resistance</subject><subject>Antibiotics</subject><subject>Antimicrobial agents</subject><subject>Antimicrobial resistance</subject><subject>Ciprofloxacin</subject><subject>Contamination</subject><subject>Diarrhea</subject><subject>DNA topoisomerase</subject><subject>DNA topoisomerase IV</subject><subject>Drug resistance</subject><subject>Epidemics</subject><subject>Fluoroquinolones</subject><subject>Food contamination & poisoning</subject><subject>Gene mutation</subject><subject>Infections</subject><subject>Levofloxacin</subject><subject>Microbial drug resistance</subject><subject>Mutation</subject><subject>Nalidixic acid</subject><subject>Piperacillin</subject><subject>Prevalence</subject><subject>Public health</subject><subject>Salmonella</subject><subject>Salmonella food 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Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Shen, Hongwei</au><au>Chen, Haochuan</au><au>Ou, Yongxuan</au><au>Huang, Tingting</au><au>Chen, Siping</au><au>Zhou, Lintao</au><au>Zhang, Jinjin</au><au>Hu, Qinghua</au><au>Zhou, Yiwen</au><au>Ma, Wen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Prevalence, serotypes, and antimicrobial resistance of Salmonella isolates from patients with diarrhea in Shenzhen, China</atitle><jtitle>BMC microbiology</jtitle><addtitle>BMC Microbiol</addtitle><date>2020-07-06</date><risdate>2020</risdate><volume>20</volume><issue>1</issue><spage>197</spage><epage>197</epage><pages>197-197</pages><artnum>197</artnum><issn>1471-2180</issn><eissn>1471-2180</eissn><abstract>Salmonella is one of the main causative agents of diarrhea which results in substantial disease burden. To determine the prevalence, serotype distribution, and antimicrobial resistance profiles of clinical Salmonella isolates in Shenzhen, a 6-year surveillance study was conducted.
A total of 297 (5.7%) Salmonella strains were isolated from stool samples from 5239 patients. Among the 42 serotypes identified, serotype Typhimurium was the most common one which represented 39.7% of the isolates (118), followed by serotype Enteritidis (71, 23.9%), London (12, 4.0%), 4, 5, 12: i: - (11, 3.7%), and Senftenberg (8, 2.7%). A high frequency of resistance was found in ampicillin (70.6%), piperacillin (64.5%), tetracycline (63.5%), and streptomycin (54.3%). Resistance to ampicillin and tetracycline was observed in 95.3% of S. Typhimurium isolates; and nalidixic acid in 93.1% of S. Enteritidis isolates. Resistance to 5 or more antimicrobial agents was found in 78.8% of S. Typhimurium and 69.0% of S. Enteritidis isolates. A decreased susceptibility to ciprofloxacin and levofloxacin was associated with amino acid alteration in gyrA gene. Point mutations without amino acid changes were seen in gyrB, parC, and parE genes.
A broad range of serotypes are responsible for Salmonellosis in Shenzhen, with Enteritidis and Typhimurium being the most common serotypes. The high level of antibiotic resistance is of public health significance and ongoing monitoring combined with rational use of antibiotics are recommended. Point mutations in gyrA gene might play an important role in the resistance to fluoroquinolones.</abstract><cop>England</cop><pub>BioMed Central Ltd</pub><pmid>32631309</pmid><doi>10.1186/s12866-020-01886-5</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Age groups Amino acid sequence Amino acids Ampicillin Antibiotic resistance Antibiotics Antimicrobial agents Antimicrobial resistance Ciprofloxacin Contamination Diarrhea DNA topoisomerase DNA topoisomerase IV Drug resistance Epidemics Fluoroquinolones Food contamination & poisoning Gene mutation Infections Levofloxacin Microbial drug resistance Mutation Nalidixic acid Piperacillin Prevalence Public health Salmonella Salmonella food poisoning Salmonellosis Serotype Serotypes Streptomycin Surveillance Tetracyclines |
title | Prevalence, serotypes, and antimicrobial resistance of Salmonella isolates from patients with diarrhea in Shenzhen, China |
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