Genetic diversity of penicillin-resistant Streptococcus pneumoniae

Fifty five Streptococcus pneumoniae isolates with reduced susceptibility to penicillin, obtained from patients with respiratory tract infections during 2003 –2007, were analyzed by MLST. Ten isolates were identified by MLST as Streptococcus «viridians» group. Among the remaining isolates 33,3% (n=15...

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Main Authors: T. A. Savinova, O. Y. Filimonova, S. A. Grudinina, S. V. Sidorenko
Format: Article
Language:Russian
Published: Journal Infectology 2014-09-01
Series:Журнал инфектологии
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Online Access:https://journal.niidi.ru/jofin/article/view/276
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author T. A. Savinova
O. Y. Filimonova
S. A. Grudinina
S. V. Sidorenko
author_facet T. A. Savinova
O. Y. Filimonova
S. A. Grudinina
S. V. Sidorenko
author_sort T. A. Savinova
collection DOAJ
description Fifty five Streptococcus pneumoniae isolates with reduced susceptibility to penicillin, obtained from patients with respiratory tract infections during 2003 –2007, were analyzed by MLST. Ten isolates were identified by MLST as Streptococcus «viridians» group. Among the remaining isolates 33,3% (n=15) belonged to global clonal complex CC81 and demonstrated reduced susceptibility to macrolides, tetracyclynes and chloramphenicol, three isolates were additionally resistant to levofloxacin. Clonal complex CC271 was represented by 5 isolated (11,1%), CC315 – by 4 (8,9%), CC315 – by 3 (6,7%), CC156, CC280 and CC1012 were represented by 2 (4,4%) isolates each. Isolates of clonal complexes 271 and 315 demonstrated high level of associated resistance to macrolides. Twelve clonal complexes were represented by single isolates. More than 50% of isolates with reduced susceptibility to penicillin belonged to three global clonal complexes. Probably these clonal complexes were imported to Russia from other geographical regions.
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series Журнал инфектологии
spelling doaj-art-40e283ae1bfb4808a0c0fdfacb8ba5c02025-08-20T03:44:24ZrusJournal InfectologyЖурнал инфектологии2072-67322014-09-0114667110.22625/2072-6732-2009-1-4-66-71290Genetic diversity of penicillin-resistant Streptococcus pneumoniaeT. A. Savinova0O. Y. Filimonova1S. A. Grudinina2S. V. Sidorenko3Research Center of Medical Agents Evaluation, MoscowRussian Medical Academy of Post-Graduate Education, MoscowFederal Antibiotic Research Center, MoscowResearch Institute of Children’s Infections, Saint-PetersburgFifty five Streptococcus pneumoniae isolates with reduced susceptibility to penicillin, obtained from patients with respiratory tract infections during 2003 –2007, were analyzed by MLST. Ten isolates were identified by MLST as Streptococcus «viridians» group. Among the remaining isolates 33,3% (n=15) belonged to global clonal complex CC81 and demonstrated reduced susceptibility to macrolides, tetracyclynes and chloramphenicol, three isolates were additionally resistant to levofloxacin. Clonal complex CC271 was represented by 5 isolated (11,1%), CC315 – by 4 (8,9%), CC315 – by 3 (6,7%), CC156, CC280 and CC1012 were represented by 2 (4,4%) isolates each. Isolates of clonal complexes 271 and 315 demonstrated high level of associated resistance to macrolides. Twelve clonal complexes were represented by single isolates. More than 50% of isolates with reduced susceptibility to penicillin belonged to three global clonal complexes. Probably these clonal complexes were imported to Russia from other geographical regions.https://journal.niidi.ru/jofin/article/view/276streptococcus pneumoniaemultilocus sequence typing
spellingShingle T. A. Savinova
O. Y. Filimonova
S. A. Grudinina
S. V. Sidorenko
Genetic diversity of penicillin-resistant Streptococcus pneumoniae
Журнал инфектологии
streptococcus pneumoniae
multilocus sequence typing
title Genetic diversity of penicillin-resistant Streptococcus pneumoniae
title_full Genetic diversity of penicillin-resistant Streptococcus pneumoniae
title_fullStr Genetic diversity of penicillin-resistant Streptococcus pneumoniae
title_full_unstemmed Genetic diversity of penicillin-resistant Streptococcus pneumoniae
title_short Genetic diversity of penicillin-resistant Streptococcus pneumoniae
title_sort genetic diversity of penicillin resistant streptococcus pneumoniae
topic streptococcus pneumoniae
multilocus sequence typing
url https://journal.niidi.ru/jofin/article/view/276
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AT oyfilimonova geneticdiversityofpenicillinresistantstreptococcuspneumoniae
AT sagrudinina geneticdiversityofpenicillinresistantstreptococcuspneumoniae
AT svsidorenko geneticdiversityofpenicillinresistantstreptococcuspneumoniae