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Spread of GES-5 carbapenemase-producing Pseudomonas aeruginosa clinical isolates in Japan due to clonal expansion of ST235
The first outbreak in Japan of GES-5 carbapenemase-producing Pseudomonas aeruginosa occurred in a long-term care facility in 2014. To assess the spread of GES-5 producing P. aeruginosa clinical isolates in medical settings in Japan, 1,476 carbapenem-resistant P. aeruginosa isolates obtained from 201...
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Published in: | PloS one 2018-11, Vol.13 (11), p.e0207134-e0207134 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The first outbreak in Japan of GES-5 carbapenemase-producing Pseudomonas aeruginosa occurred in a long-term care facility in 2014. To assess the spread of GES-5 producing P. aeruginosa clinical isolates in medical settings in Japan, 1,476 carbapenem-resistant P. aeruginosa isolates obtained from 2012 to 2016 were characterized. Of these 1,476 isolates, 104 (7.0%) harbored blaGES-5. Southern blotting revealed that the blaGES-5 was located on the chromosome. The isolation rates of these GES-5 producers increased significantly every year, from 2.0% (6 of 295) in 2012 to 2.8% (8 of 283) in 2013 to 5.3% (16 of 303) in 2014 to 9.7% (29 of 300) in 2015 to 15.3% (45 of 295) in 2016. Of the 104 GES-5 producers, 102 belonged to clonal complex (CC) 235, including 99 belonging to ST235 and three belonging to ST2233). Whole genome sequence analysis revealed that CC235 P. aeruginosa harboring blaGES-5 spread in a clonal manner. These results indicate that these GES-5 producing CC235 P. aeruginosa clinical isolates have spread in medical settings throughout Japan. |
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ISSN: | 1932-6203 1932-6203 |
DOI: | 10.1371/journal.pone.0207134 |