Clonal diversity among erythromycin-resistant  -haemolytic Streptococcus isolates in La Rioja, Spain

Clonal diversity among erythromycin-resistant  -haemolytic Streptococcus isolates in La Rioja, Spain

Objective: To analyse clonal diversity in 72 erythromycin-resistant [beta]-haemolytic streptococci. Methods: Clonal relationships were studied for streptococci of groups A (GAS, n = 30), B (GBS, n = 34), C (GCS, n = 4) and G (GGS, n = 4) by means of PFGE. Streptococcal isolates were obtained from a...

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Veröffentlicht in:Journal of antimicrobial chemotherapy 2003-09, Vol.52 (3), p.485-488
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description Objective: To analyse clonal diversity in 72 erythromycin-resistant [beta]-haemolytic streptococci. Methods: Clonal relationships were studied for streptococci of groups A (GAS, n = 30), B (GBS, n = 34), C (GCS, n = 4) and G (GGS, n = 4) by means of PFGE. Streptococcal isolates were obtained from a 450-bed hospital in Spain during the following periods: GAS (1996-2001), GBS (1999-2001), GCS and GGS (1997-2000). Results: Twenty-two of the 30 GAS isolates showed the M resistance phenotype and harboured the mef(A) gene. Five unrelated PFGE patterns were identified among these 22 GAS isolates. Sixteen of them, obtained during four different years of the study, showed one of the two predominant PFGE patterns. The remaining eight GAS isolates showed the MLS
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Methods: Clonal relationships were studied for streptococci of groups A (GAS, n = 30), B (GBS, n = 34), C (GCS, n = 4) and G (GGS, n = 4) by means of PFGE. Streptococcal isolates were obtained from a 450-bed hospital in Spain during the following periods: GAS (1996-2001), GBS (1999-2001), GCS and GGS (1997-2000). Results: Twenty-two of the 30 GAS isolates showed the M resistance phenotype and harboured the mef(A) gene. Five unrelated PFGE patterns were identified among these 22 GAS isolates. Sixteen of them, obtained during four different years of the study, showed one of the two predominant PFGE patterns. The remaining eight GAS isolates showed the MLS<B< resistance phenotype, and four unrelated PFGE patterns were detected. All but one erythromycin-resistant GBS showed the MLS<B< resistance phenotype, and an erm gene was identified in all cases [erm(B) or erm(A)]. Twenty-two unrelated PFGE patterns were demonstrated among 25 GBS with the MLS<B< resistance phenotype; the remaining eight MLS<B< GBS isolates could not be typed by PFGE. The eight erythromycin-resistant GGS and GCS isolates of this study presented seven unrelated PFGE patterns. GGS and GCS strains showed an MLS<B< resistance phenotype and had the erm(A) gene. Conclusions: High clonal diversity was detected in this series of erythromycin-resistant GBS, whereas lower diversity was seen in the GAS isolates.]]></description><identifier>ISSN: 1460-2091</identifier><identifier>ISSN: 0305-7453</identifier><identifier>EISSN: 1460-2091</identifier><identifier>DOI: 10.1093/jac/dkg347</identifier><language>eng</language><publisher>Oxford: Oxford Publishing Limited (England)</publisher><ispartof>Journal of antimicrobial chemotherapy, 2003-09, Vol.52 (3), p.485-488</ispartof><rights>Copyright Oxford University Press(England) Sep 2003</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c1397-7b48055c4b83ba8eb9c1e9311023c3e357f414f4ab7e2db91643b5d18c2123d73</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Portillo, A.</creatorcontrib><title>Clonal diversity among erythromycin-resistant  -haemolytic Streptococcus isolates in La Rioja, Spain</title><title>Journal of antimicrobial chemotherapy</title><description><![CDATA[Objective: To analyse clonal diversity in 72 erythromycin-resistant [beta]-haemolytic streptococci. Methods: Clonal relationships were studied for streptococci of groups A (GAS, n = 30), B (GBS, n = 34), C (GCS, n = 4) and G (GGS, n = 4) by means of PFGE. Streptococcal isolates were obtained from a 450-bed hospital in Spain during the following periods: GAS (1996-2001), GBS (1999-2001), GCS and GGS (1997-2000). Results: Twenty-two of the 30 GAS isolates showed the M resistance phenotype and harboured the mef(A) gene. Five unrelated PFGE patterns were identified among these 22 GAS isolates. Sixteen of them, obtained during four different years of the study, showed one of the two predominant PFGE patterns. The remaining eight GAS isolates showed the MLS<B< resistance phenotype, and four unrelated PFGE patterns were detected. All but one erythromycin-resistant GBS showed the MLS<B< resistance phenotype, and an erm gene was identified in all cases [erm(B) or erm(A)]. Twenty-two unrelated PFGE patterns were demonstrated among 25 GBS with the MLS<B< resistance phenotype; the remaining eight MLS<B< GBS isolates could not be typed by PFGE. The eight erythromycin-resistant GGS and GCS isolates of this study presented seven unrelated PFGE patterns. GGS and GCS strains showed an MLS<B< resistance phenotype and had the erm(A) gene. Conclusions: High clonal diversity was detected in this series of erythromycin-resistant GBS, whereas lower diversity was seen in the GAS isolates.]]></description><issn>1460-2091</issn><issn>0305-7453</issn><issn>1460-2091</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNpNkE1KxDAAhYMoOI5uPEFwKdbJX5tmKYOjwoDg6DokaTqT2jY1yQi9jWfxZFbGhav3LR4P3gfAJUa3GAm6aJRZVO9byvgRmGFWoIwggY__8Sk4i7FBCBV5Uc6AXba-Vy2s3KcN0aURqs73W2jDmHbBd6NxfRZsdDGpPsHvr2ynbOfbMTkDNynYIXnjjdlH6KJvVbIT9HCt4IvzjbqBm0G5_hyc1KqN9uIv5-Btdf-6fMzWzw9Py7t1ZjAVPOOalSjPDdMl1aq0WhhsBcUYEWqopTmvGWY1U5pbUmmBC0Z1XuHSEExoxekcXB12h-A_9jYm2fh9mP5FSTAvCkFYMZWuDyUTfIzB1nIIrlNhlBjJX4tysigPFukPAxBnmg</recordid><startdate>20030901</startdate><enddate>20030901</enddate><creator>Portillo, A.</creator><general>Oxford Publishing Limited (England)</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7QO</scope><scope>7T7</scope><scope>7U7</scope><scope>7U9</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H94</scope><scope>K9.</scope><scope>M7N</scope><scope>NAPCQ</scope><scope>P64</scope></search><sort><creationdate>20030901</creationdate><title>Clonal diversity among erythromycin-resistant  -haemolytic Streptococcus isolates in La Rioja, Spain</title><author>Portillo, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1397-7b48055c4b83ba8eb9c1e9311023c3e357f414f4ab7e2db91643b5d18c2123d73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Portillo, A.</creatorcontrib><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Biotechnology Research Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Toxicology Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Journal of antimicrobial chemotherapy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Portillo, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Clonal diversity among erythromycin-resistant  -haemolytic Streptococcus isolates in La Rioja, Spain</atitle><jtitle>Journal of antimicrobial chemotherapy</jtitle><date>2003-09-01</date><risdate>2003</risdate><volume>52</volume><issue>3</issue><spage>485</spage><epage>488</epage><pages>485-488</pages><issn>1460-2091</issn><issn>0305-7453</issn><eissn>1460-2091</eissn><abstract><![CDATA[Objective: To analyse clonal diversity in 72 erythromycin-resistant [beta]-haemolytic streptococci. Methods: Clonal relationships were studied for streptococci of groups A (GAS, n = 30), B (GBS, n = 34), C (GCS, n = 4) and G (GGS, n = 4) by means of PFGE. Streptococcal isolates were obtained from a 450-bed hospital in Spain during the following periods: GAS (1996-2001), GBS (1999-2001), GCS and GGS (1997-2000). Results: Twenty-two of the 30 GAS isolates showed the M resistance phenotype and harboured the mef(A) gene. Five unrelated PFGE patterns were identified among these 22 GAS isolates. Sixteen of them, obtained during four different years of the study, showed one of the two predominant PFGE patterns. The remaining eight GAS isolates showed the MLS<B< resistance phenotype, and four unrelated PFGE patterns were detected. All but one erythromycin-resistant GBS showed the MLS<B< resistance phenotype, and an erm gene was identified in all cases [erm(B) or erm(A)]. Twenty-two unrelated PFGE patterns were demonstrated among 25 GBS with the MLS<B< resistance phenotype; the remaining eight MLS<B< GBS isolates could not be typed by PFGE. The eight erythromycin-resistant GGS and GCS isolates of this study presented seven unrelated PFGE patterns. GGS and GCS strains showed an MLS<B< resistance phenotype and had the erm(A) gene. Conclusions: High clonal diversity was detected in this series of erythromycin-resistant GBS, whereas lower diversity was seen in the GAS isolates.]]></abstract><cop>Oxford</cop><pub>Oxford Publishing Limited (England)</pub><doi>10.1093/jac/dkg347</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record>
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source Oxford University Press Journals All Titles (1996-Current); EZB-FREE-00999 freely available EZB journals; Free Full-Text Journals in Chemistry
title Clonal diversity among erythromycin-resistant  -haemolytic Streptococcus isolates in La Rioja, Spain
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